Butyric Acid
Butyric Acid
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Professional gourmand realism modifier.
Adds authentic dairy complexity in trace amounts.
Transforms into beautiful fruity esters via chemistry.
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Butyric acid opens with an assault of rancid butter—the unmistakable smell of dairy gone wrong. This isn't subtle; at full strength, it's genuinely offensive with its penetrating, persistent character that combines the worst aspects of spoiled butter with sharp, aged cheese. The sour-acidic quality cuts through everything, while animalic undertones add to its challenging profile. Yet this very unpleasantness is precisely what makes it valuable—at extreme dilution (below 0.01%), it provides the authentic sharp tang that transforms simple creamy notes into realistic aged dairy effects. Detected by humans at just 10 ppm, its power is undeniable.
Deploy butyric acid with extreme caution—typically at 0.001-0.01% maximum in finished products. Its exceptional persistence means mistakes linger, requiring careful pre-dilution to 0.1% or less before use. In dairy compositions, minute traces add the sharp edge that distinguishes fresh cream from aged cheese. Use it to enhance butter accords with realistic fermented depth or to add authenticity to milk and cream bases. The material's greatest value lies in its esters—ethyl butyrate (pineapple), butyl butyrate (tropical fruit), and isoamyl butyrate (pear) provide pleasant fruity notes that completely transform the parent acid's objectionable character.
Despite sharing the same four-carbon chain, butyric acid differs dramatically from its isomer isobutyric acid in both structure and scent. Butyric acid's straight chain creates the classic rancid butter-cheese profile essential for authentic dairy effects; isobutyric acid's branched structure produces a milder, less penetrating character often described as more "sweaty" than cheesy. Both acids work synergistically in complex dairy reconstructions, with butyric providing sharp cheese notes and isobutyric adding depth without overwhelming pungency. In ester form, butyric esters tend toward tropical fruits while isobutyric esters lean more toward berry notes. Choose butyric acid for authentic aged cheese effects and when you need maximum dairy impact; select isobutyric acid for subtler fermented nuances and better blending in delicate compositions.
Because of its repulsive nature, we sell this at 1% in DPG but for those who are working in very large amounts, we also offer it pure.
NOTE: We individually package all powders, high odour or sensitive materials in heat-sealed aluminum bags to prevent cross-contamination and maintain product quality.
Odour Impact Scale [i]
Scale Interpretation
Butyric Acid is exceptionally potent, with both high odour strength (10/10) and dominant impact in blends (10/10). Must be used with extreme precision in minute quantities.
Average Use: 0.47% in a perfume compound
Odour Family:
Animalic
Appearance: Colourless liquid
Longevity: Lasts 24 hours on a smelling strip.
Odour Profile: Butyric Acid delivers an intensely pungent, rancid butter character with sharp cheesy bite, acidic sourness, and deeply animalic vomit-like facets that are overwhelmingly repulsive at concentration.
Uses: Trace modifier for gourmand creaminess, realistic fruit fermentation, animalic depth, and precursor to pleasant fruity butyrate esters.
INCI Name: BUTYRIC ACID
IUPAC Name: Butanoic acid
Fraterworks® is strictly a reseller of this product and is neither an agent nor official distributor for Ventos.
General Information
General Information
Like most suppliers and makers of quality raw materials for fragrances, we do not filter many of our products. This ensures that no odiferous matter is lost prior to use but can result in the appearance of small particles or slight clouding.
All alcoholic fragrances should be macerated for up to a month and then chilled in a moderate freezer overnight before being filtered fine. This will remove all cloudiness or detritus and is the industry norm.
IFRA Standards
IFRA Standards
Permitted amounts in finished product:
IFRA 51: Unrestricted
IFRA 49: Unrestricted
These are derived from calculated concentrations which do not replace chromatographic quantification on individual lots. Disclaimer...
For Trade Use Only
For Trade Use Only
Our products are intended as building blocks in the perfume creation process; they are not to be applied to the skin undiluted.
These raw materials are for use by the perfumery trade only.
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General Disclaimer
(a) Vegan labelling: Where the word “vegan” is used in relation to our products, that indicates that we have not added any animal products to products marked vegan. We do not verify whether any third-party supplier has used animal additives prior to supplying a product to us. We provide products marked vegan “as is” and make no representation as to the accuracy, completeness, or reliability of that claim.
(b) Natural labelling: Where the word “natural” is used in relation to our products, that indicates that we have not added any synthetic additives to products marked natural. We do not verify whether any third-party supplier has used synthetic additives prior to supplying a product to us. We provide products marked natural “as is” and make no representation as to the accuracy, completeness, or reliability of that claim.
(c) Documentation: We provide the information contained in each document you obtain from us (including but not limited to SDS, IFRA certificate, COA, TDS, EU Allergens, and any other regulatory document) “as is” and make no representation as to its accuracy, completeness, or reliability. We provide no warranties or guarantees in relation to a document you obtain from us. You purchase and use a document or documents at your own risk. Any implied conditions or warranties are excluded and, to the extent that they cannot be excluded, any liability we have to you or any other person or entity in respect of a document you obtain from us is limited to NZD0.01 (one cent). You indemnify us against any loss we suffer or incur as a direct or indirect result of your use of a document you obtain from us.
(d) Demonstration formulas: Demonstration formulas are provided as a guide only. We provide no warranties or guarantees in relation to the formula. You access and use the formula at your own risk. Any implied conditions or warranties are excluded and, to the extent that they cannot be excluded, any liability we have to you or any other person or entity in respect of the formula is limited to NZD0.01 (one cent). You indemnify us against any loss we suffer or incur as a direct or indirect result of your use of a formula.
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Regulations
DisclaimerAll of our products are compliant with EU 1223/2009 and the NZCPGS. None of our bases contain prohibited materials and regulatory compliance is possible depending on usage.
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IFRA Conformity
All of our bases can be used in products requiring conformity with the latest IFRA standards. Fraterworks is an official member of IFRA and the FFAANZ.
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Nitro Musks
Some of our products may contain small amounts of EU and IFRA compliant musk ketone. We never use musk xylene, musk ambrette or any other prohibited materials.