Search:

Type: Posts; User: Bill Roberts; Keyword(s):

Page 1 of 5 1 2 3 4
Switch to Threadloom Search Results

Search: Search took 0.06 seconds.

  1. Re: 2-aminobenzaldehyde source or good replacer.

    It was though very on topic for today. Parker had found and shared an interesting article mentioning a misnamed compound, "anthranilate aldehyde," which is actually this compound which IMO is a quite...
  2. Re: 2-aminobenzaldehyde source or good replacer.

    I suppose having this material as an ingredient could be a rare case of where adding water to a perfume, perhaps to 150 proof or such, could help.

    I can scarcely believe after all that has been...
  3. Re: Creating traditional attars using naturals and aroma chemicals

    An attar is created in a distillation process rather than by mixing things together, or at least so I had thought.

    If you mean only oil based perfume, then yes, you can do exactly as with alcohol...
  4. Re: Maybe an interesting paper for some (flower volatiles)

    It looks like a half-life for a second order rate constant.

    What was particularly interesting to me was the large proportion of 2-aminobenzaldehyde (the anthranilic aldehyde of your recent post in...
  5. Maybe an interesting paper for some (flower volatiles)

    As a teaser a single chart:

    158956

    https://hal.archives-ouvertes.fr/hal-01766518/document
  6. Re: How to built a Chypre ( Mitsouko direction) accord.

    Holy necropost, Batman!!
  7. Replies
    6
    Views
    15,768

    Re: Acacia (Robinia)/Black Locust

    It is a misspelling which the Department of Forestry authors missed, perhaps failing to have the chemists who did the analysis for them proofread their paper. Within the table of components detected,...
  8. Replies
    47
    Views
    1,126

    Re: Deliberate practice

    Yes, thank you!

    (Odd coincidence, or exactly spotting intent, as I think of that tiny little base as being Shalimar-y.)
  9. Replies
    47
    Views
    1,126

    Re: Deliberate practice

    I suppose it depends totally on what one is doing.

    For example the only thing I ever do with Guaiol is a little accord or mini-base with Ethyl Vanillin and Opopanax. I'm not saying it's Guaiol's...
  10. Re: How To Foster Aromamaterials Customer Trust: Eden Botanicals

    Ah well then it must be very nice!
  11. Re: How To Foster Aromamaterials Customer Trust: Eden Botanicals

    A famous one was "Trust but verify."

    Personally I'd say "and" rather than "but," but not much difference.

    Habitual trust without verification leads to issues such as buying from distributors...
  12. Re: How To Foster Aromamaterials Customer Trust: Eden Botanicals

    I also want to add an opinion (and take it as opinion only) that first, it's great that Eden Botanicals sends their naturals out for third party testing with a quite reputable and certainly very...
  13. Re: How To Foster Aromamaterials Customer Trust: Eden Botanicals

    Absolutely!

    Thank you, Mike!

    Problems will happen given enough time and enough volume of business. Putting in place well thought out procedures, combined with (if the case) years of experience...
  14. Replies
    9
    Views
    464

    Re: Perfume flower tree absolute

    I'm glad I helped out, and thank you for mentioning!
  15. Replies
    10
    Views
    358

    Re: isopropyl quinoline

    Thank you but indeed no need for apology at all, no problem whatsoever. It was a simple misunderstanding only.
  16. Replies
    76
    Views
    7,871

    Re: New Smelly Game Proposal

    That is true! :)

    By no means continually, but several times, not at great length.
  17. Replies
    76
    Views
    7,871

    Re: New Smelly Game Proposal

    On re-reading the previous game's thread I saw that in actuality nearly all or at least most of the perfumes submitted were indeed reviewed by all judges who did submit reviews (I had mistakenly...
  18. Re: My experiences with (european) DIY Suppliers

    It's great to have you here, Karol!

    I have viewed your store many times and look forward to the day I place my first order. You have a fine selection.
  19. Replies
    47
    Views
    1,126

    Re: Deliberate practice

    Personal opinion which may, seriously, be of little worth:

    The technical approach as described makes a lot of sense and cannot hurt and almost surely is useful.

    But in contrast looking at...
  20. Replies
    18
    Views
    1,161

    Re: Spoiled Hedione

    They've assured other things that examination has not supported.

    I would use the words "might be" rather than "must be" with regard to whether it was something you did.
  21. Replies
    2
    Views
    296

    Re: Two questions.

    The only AC I ever synthesized was carvacrol acetate, and that's because I wanted to reduce the odor of carvacrol.

    It was easy enough to do, and succeeded even better than hoped.

    If anyone...
  22. Replies
    10
    Views
    358

    Re: isopropyl quinoline

    I believe you have had some language trouble in understanding my post as well as trouble in seeing who it was that I was responding to and the subject matter of what I was talking about, which was...
  23. Replies
    35
    Views
    8,633

    Re: Can Hedione go 'off'?

    You are very welcome! I am glad it is of value.
  24. Replies
    35
    Views
    8,633

    Re: Can Hedione go 'off'?

    It is very important to be buying genuine product.

    As I have mentioned before, some people treat "Hedione" as if it were a generic term. In reality, Hedione is a registered trademark of Firmenich...
  25. Replies
    18
    Views
    511

    Re: C14 for pear

    I wouldn't listen to that someone.
  26. Replies
    10
    Views
    358

    Re: isopropyl quinoline

    I don't know how I can emphasize any more than I already have that structure-based guessing is futile and empty, utterly devoid of any merit. Sole exception being if planning to synthesize an array...
  27. Replies
    9
    Views
    464

    Re: Perfume flower tree absolute

    Thank you for the reference, Paul! It is a very good one and not just for this.

    As some may not be able to read the article, here is the table with the data on this Absolute:

    158829

    This may...
  28. Replies
    7
    Views
    438

    Re: Can i save my material?

    Oh, to be clear, when writing my post, your second post hadn't yet appeared.

    The "Indeed" was to agree with Stefan's post.

    Now that you have clarified that it is a mere drop or two of Vertenex...
  29. Replies
    7
    Views
    438

    Re: Can i save my material?

    Indeed.

    Even if you had access to such as a suitable chromatography column and were familiar with its use, it would be cheaper and better to simply replace the materials.

    In very few cases...
  30. Replies
    18
    Views
    1,161

    Re: Spoiled Hedione

    Perhaps a good idea on the latter, as one of them is lawyer-happy. Not PA and not of course PSH.

    On the former, there is only one US retailer that has earned my full trust and has never done...
  31. Replies
    18
    Views
    1,161

    Re: Spoiled Hedione

    Yes, if it smells different than it should, this should be expected to carry over to the final formula.

    As mentioned I doubt the explanation is spoiling, but rather substitution with cheaper...
  32. Replies
    18
    Views
    1,161

    Re: Spoiled Hedione

    I have not had problems, including with bottles 2 years old at room temperature.

    Some retailers have lost my trust for good and sufficient reasons, one of them partially, the other now totally. I...
  33. Replies
    18
    Views
    1,161

    Re: Spoiled Hedione

    I have not had problems, including with bottles 2 years old at room temperature.

    Two US retailers have lost my trust (one partly, one entirely) for good and sufficient reasons. I would suspect...
  34. Replies
    13
    Views
    603

    Re: Undertones for Amber

    Not intended as criticism or an implication you don't know it but a helpful way of looking at things:

    Notes are perceptions or can be claims. They can be perceived from mixtures or from pure...
  35. Can anyone explain? I just don't get it

    An example of coming up with 4 words that initially would seem all to have absolutely nothing to do with each would be "Teenage Mutant Ninja Turtles."

    Another two words that don't seem to go...
  36. Re: perfume labeling requirements USA laws

    Expiration dates for cosmetics are somewhat of a mess legally. In terms of good practice, one would do a stability study to determine expiration date. However, cosmetics manufacturers don't have to...
  37. Replies
    34
    Views
    1,438

    Re: Wool musk Absolute

    Back to the general point of how little a volume of alcohol an Absolute should dissolve in, again while not having official information:

    Certainly some Absolutes don't fully dissolve in only 9...
  38. Re: Natural Fragrance Ingredients grown - and now to NOT BE GROWN IN EU !

    Agreed.

    What I wished to communicate was that it is choices made in how to respond to such as a country choosing to leave a union that can cause people harm, rather than economic or other harm...
  39. Replies
    34
    Views
    1,438

    Re: Wool musk Absolute

    Thank you, Adam!
  40. Replies
    34
    Views
    1,438

    Re: Wool musk Absolute

    You're very welcome, Mike!
  41. Re: Natural Fragrance Ingredients grown - and now to NOT BE GROWN IN EU !

    Aren't the only economic "repercussions" punishments chosen to be inflicted even at cost also to people in EU countries? E.g., it now being so much harder and more costly to buy from Pell Wall, as...
  42. Replies
    34
    Views
    1,438

    Re: Wool musk Absolute

    "Ethanol soluble portion of the solvent extract" is rather imprecise. How soluble is "soluble"?

    Not uncommonly Absolutes include some material that have only low solubility in alcohol.

    At the...
  43. Replies
    34
    Views
    1,438

    Re: Wool musk Absolute

    Thank you, Adam, I missed seeing the "mostly soluble."

    It then really should be called more a concrete. It should be a simple step to refine to the Absolute, requiring only dissolving what will...
  44. Replies
    34
    Views
    1,438

    Re: Wool musk Absolute

    Where is the information this is not the Absolute or has an ethanol solubility issue?

    What was it extracted with? Is it the concrete, or the Absolute?

    If the former, that would be an unfair...
  45. Replies
    34
    Views
    1,438

    Re: Wool musk Absolute

    I did notice as you posted your yield was remarkably high and the process extremely simple, causing the price to seem far askew. Along the way enormous profit per mL was acquired as none of costly...
  46. Re: Natural Fragrance Ingredients grown - and now to NOT BE GROWN IN EU !

    Neither did the EU press representative when asked say they will not, while having a clear opportunity to state clearly that they would not.

    So it is not a proven fact either way what they will...
  47. Re: Natural Fragrance Ingredients grown - and now to NOT BE GROWN IN EU !

    Btw, an article I was reading on hydrolysis of aromamaterial esters had as its purpose looking at things such as whether hydrolysis of linalyl acetate hydrolysis needed to be considered with regard...
  48. Re: Natural Fragrance Ingredients grown - and now to NOT BE GROWN IN EU !

    Agreed.

    And, here in the US anyway, before everything they shortly do that people do not want and would never ever have agreed to, they say such!

    Such a statement is essentially empty space at...
  49. Replies
    6
    Views
    533

    Re: Remade Fragrance; different results

    It is hard to say on the opacity issue. Most times more DPG would enhance solubility of aromamaterials but this wouldn't always have to be true. Perhaps in some cases more DPG results in an opaque...
  50. Re: Natural Fragrance Ingredients grown - and now to NOT BE GROWN IN EU !

    Living in Brussels lets you know all of the vast number of things the EU has in process at any moment?

    2025 is too far away to be concerned with?

    I have only three years of French not kept up...
  51. Replies
    59
    Views
    5,284

    Re: One Eighth Pink Champagne

    One of the very last things I ever like to do is "jump in the middle" but as a really rare exception as it does seem to me it could help:

    Mike, I used to be driven near nuts, and wasn't the only...
  52. Replies
    6
    Views
    533

    Re: Remade Fragrance; different results

    Who is your supplier of the two batches? Is it a commercial supplier of very high repute, e.g. Vigon, or one of the quite few retailers who operate impeccably? What documentation was provided or is...
  53. Re: Natural Fragrance Ingredients grown - and now to NOT BE GROWN IN EU !

    It may not have been the best idea years back to give essentially unaccountable and unremovable bureaucrats outside one's own country the power to do such things. It's collectively up to everyone so...
  54. Replies
    30
    Views
    1,606

    Re: About lychee

    Maybe if the unelected bureadictators try to ban lavender etc there will be a successful-this-time Guy Fawkes sort of deal, or a ripple Brexit effect, and the unaccountable power mongers will lose...
  55. Replies
    30
    Views
    1,606

    Re: About lychee

    EDIT: I have removed response to what is now deleted, as I assume it is retracted.
  56. Replies
    30
    Views
    1,606

    Re: About lychee

    Anti-Asian racism???

    I was with you for the most part up to there.

    I haven't seen racism on this forum regarding any race and I think there ought to be some actual case, you know, evidence of...
  57. Re: The latest chemical research on Vetiver

    This is, I think, the most comprehensive work on the subject, or certainly that I have read:...
  58. Re: The latest chemical research on Vetiver

    I did, as I posted much of it before and was trying to be more concise.

    Also, lately people have been nice, or less rude, in not attacking me with their (I mean those who have it) ABC-hate, and...
  59. Re: Help? Sulfur/ Rotten Egg Note - How to achieive?

    Perhaps those are safer!

    A good thing if so.
  60. Re: The latest chemical research on Vetiver

    Oh, and Parker, as this post was while you were on a temporary time-off from here and you may find some of the links interesting chemistry or you may even have thoughts to offer,...
  61. Re: The latest chemical research on Vetiver

    Reposting here a shortened version of a previous post. These are Arcadi Boix Camps' views on differing materials in vetiver. Note, one or more of them may have had the above compound in them as an...
  62. Re: Help? Sulfur/ Rotten Egg Note - How to achieive?

    Maybe they changed. My order was all in aluminum bottles with a strange cap system, not easy to open, which looked like they ought to seal reliably but one leaked half or so of its contents on the...
  63. Re: Help? Sulfur/ Rotten Egg Note - How to achieive?

    Wow, that would not be a good one to have turn out to be one of their leakers...
  64. Replies
    29
    Views
    12,956

    Re: Best aroma-chemicals suppliers in Europe?

    What is BLH?

    That's great information that material source is certified there.

    Thank you!

    EDIT -- I suppose they are this: https://www.blhsas.com/?PGFLngID=1

    Oh my goodness, look at all...
  65. Replies
    29
    Views
    12,956

    Re: Best aroma-chemicals suppliers in Europe?

    If QA/QC requirements are comparable in the EU as to the US in FDA regulated industries, the only fairly large retail supplier outside America I know of* you could use is Pell Wall.

    For a hobbyist...
  66. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    Oh! I totally misremembered then. Thank you.

    Very cool!!
  67. Replies
    7
    Views
    569

    Re: Low odor materials

    I didn't mention benzyl benzoate because it wouldn't serve what I thought I was gathering as the purpose.
  68. Re: The latest chemical research on Vetiver

    Well three of the authors were Givaudan employees, so if they personally were not much familiar with perfumery, they had easy access to those who are. There is the thought of having others review...
  69. Replies
    7
    Views
    569

    Re: Low odor materials

    I'm not sure if it can be done directly on TGSC but a websearch for the following will do it:

    site:www.thegoodscentscompany.com/data/ "odor strength: medium"

    There will be an awful lot!
  70. Replies
    7
    Views
    569

    Re: Low odor materials

    James, there is a strong correlation with higher mw tending to be more substantive, but it is not the only factor. For example an alcohol of a little lower molecular weight might have more...
  71. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    You are certainly right though that the chemistry, when dealing with potentially impure mixtures, can be more complicated than first presented, if this was your point rather than whether the above...
  72. Re: The latest chemical research on Vetiver

    Thank you for the link.

    There is some tendency among some in science to blow the trumpet, sometimes merely wanting to make sure you are aware the did something before anyone else ("For the first...
  73. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    In these days, and for some time, of not only proton NMR but 2D carbon experiments (COSY, TOCSY, and more) which don't take long or cost that much, it would be quite the embarrassment for the IUPAC...
  74. Re: The difference between a fine fragrance and an amateur fragrance?

    There was a clothing shop that for a while I seriously wished they would install a Chinese water torture booth, as I was certain the drip, drip, drip would be a far better way to pass the time than...
  75. Replies
    13
    Views
    775

    Re: additives ? any help?

    It's an interesting logic puzzle.

    The thought process would require, "The people I have bought my fragrances from were not smart enough to add X, Y, and Z which are the true finishing touches...
  76. Replies
    14
    Views
    771

    Re: Sultanene / Pharaone

    Rather than aiming to make it a note in itself, it's worth trying diluting Sultanene to 0.1% and then using it at less than 1% of formula and seeing what you think then. Arcadi Boix Camps suggested...
  77. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    Thank you, Darren!! :)
  78. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    Mike, Indolene is well into the 300's due to being at a 2:1 ratio per TGSC information, unlike all the indole and skatole Schiff Bases listed on TGSC and so far as I know all the Schiff Bases that...
  79. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    Agreed completely on each point.

    And not that there's really more than completely, still I want to emphasize agreement on the organoleptics in use being what it's all about.

    Here, whether the...
  80. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    Darren, my apologies for late-night cell phone reading -- not that that excuses it whatsoever -- conflating of two authors into one. My objections and statements were totally and only to the...
  81. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    :lolk: :thumbsup:
  82. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    Go read the reason, right after you . yourself.

    You obviously don't know, but your links do not at all demonstrate your fallacious dea that because you read in Perfumer and Flavorist that aminals...
  83. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    Can you tell me from there or anywhere which aromamaterial that is in commercial use at all is an indole or skatole derived aminal?

    I didn't comb through your links but they did not appear to be...
  84. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    I have no idea why that author says that.

    What aromamaterial is an aminal?

    Perhaps the "evidently" is a qualifier?
  85. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    While I have many times seen the 2:1 rule, the mw's which TGSC gives for indole and skatole Schiff Bases correspond with 1:1, and likewise the diagrams are 1:1. FWIW.

    E.g.,

    158157


    Also...
  86. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    :laugh:
  87. Replies
    44
    Views
    11,406

    Re: What happens during maceration?

    Btw, in that first attachment -- why it doesn't show until clicking, I don't know -- Aurantiol showed disastrous instability in the pH 6.1 aftershave formulation: over 75% loss in 12 weeks at 37 C.
    ...
  88. Replies
    49
    Views
    2,336

    Re: What Have I Created?

    At least when it comes to cooking meats, I generally go by when the smoke alarm goes off.

    I learned this technique from Chef Ramsey.
  89. Replies
    44
    Views
    11,406

    Re: What happens during maceration?

    I'm glad it was of interest!

    [deleted: rambling]
  90. Replies
    13
    Views
    775

    Re: additives ? any help?

    Agreed on all points!

    Though it is a fixation (no pun intended, really) of very many new posters to ask about, uh, fixation.
  91. Replies
    44
    Views
    11,406

    Re: What happens during maceration?

    Good read for those liking such, on the subject of various types of hydrolysis including de-esterification occurring with time in a fragrance:...
  92. Replies
    13
    Views
    775

    Re: additives ? any help?

    Do you think a beginner, particularly but not only one who wishes to learn in grow in perfumery, is better served by seeing what ingredients do for him or her in their formula or formulas and use...
  93. Re: Suggestions on making an Elemi accord which functions in the mid the base range.

    You are fortunate to have it. It's a rare bird among amateur perfumers, I expect. I have not been able to get it though admittedly I have made no effort past looking for it retail and coming up empty.
  94. Replies
    44
    Views
    11,406

    Re: What happens during maceration?

    What I can think of anyway in that direction is that in virtually anhydrous conditions, which fragrance concentrate ordinarily would be, and more concentrated conditions, Schiff Bases will form both...
  95. Replies
    44
    Views
    11,406

    Re: What happens during maceration?

    For sure, in a century reactions that would not occur noticeably in weeks or months of deliberate maturation will show up, unfortunately to detriment rather than better, and probably more as...
  96. Replies
    44
    Views
    11,406

    Re: What happens during maceration?

    That is not correct.

    The described experiment -- geraniol and linalyl acetate in one test container, and geranyl acetate and linool in the other, in proportions as described -- if they remain...
  97. Replies
    44
    Views
    11,406

    Re: What happens during maceration?

    Well, we don't seem to see for example alcohol derivatives of musks in GC/MS's, etc. There is just a whole lot of GC/MS data of perfumes that have had some time to age and from that if these things...
  98. Re: Suggestions on making an Elemi accord which functions in the mid the base range.

    Have you Elemol?
  99. Replies
    44
    Views
    11,406

    Re: What happens during maceration?

    There are also less important reactions which I don't think occur at rates fast enough to be important to maturation. An example would be, though shamefully* I don't recall the reaction name, in some...
  100. Replies
    44
    Views
    11,406

    Re: What happens during maceration?

    Taking a look at your (excellent) list of reactions:



    We can note that the only ones of these that can occur prior to addition of ethanol -- in other words, while still having the undiluted...
Results 1 to 100 of 500
Page 1 of 5 1 2 3 4



Loving perfume on the Internet since 2000