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| | 2-Methyl butyric acid Chemical Properties |
| Melting point | -70 °C | | Boiling point | 176-177 °C (lit.) | | density | 0.936 g/mL at 25 °C (lit.) | | vapor pressure | 0.5 mm Hg ( 20 °C) | | FEMA | 2695 | 2-METHYLBUTYRIC ACID | | refractive index | n20/D 1.405(lit.) | | Fp | 165 °F | | storage temp. | Sealed in dry,Room Temperature | | solubility | 20g/l | | form | Liquid | | pka | 4.8(at 25℃) | | color | Clear colorless to pale yellow | | Odor | at 10.00 % in propylene glycol. pungent acid roquefort cheese | | Odor Type | acidic | | explosive limit | 1.6-7.3%(V) | | Water Solubility | 45 g/L (20 ºC) | | JECFA Number | 255 | | BRN | 1720486 | | LogP | 1.8 at 25℃ | | CAS DataBase Reference | 116-53-0(CAS DataBase Reference) | | NIST Chemistry Reference | Butanoic acid, 2-methyl-(116-53-0) | | EPA Substance Registry System | 2-Methylbutyric acid (116-53-0) |
| Hazard Codes | C | | Risk Statements | 21/22-34 | | Safety Statements | 26-36/37/39-45 | | RIDADR | UN 3265 8/PG 3 | | WGK Germany | 1 | | RTECS | EK7897000 | | F | 13 | | TSCA | Yes | | HazardClass | 8 | | PackingGroup | III | | HS Code | 29156090 |
| | 2-Methyl butyric acid Usage And Synthesis |
| Description | 2-methyl butyric acid has a pungent, acrid odor which is similar to Roquefort cheese with an acrid taste. At low dilutions, it has a pleasant fruity taste. It can be prepared either by decarboxylation of methyl ethyl malonic acid or by the oxidation of fermentation amyl alcohol (fusel oil). It is used as a flavor ingredient for butter, cream, cheese flavor deployment. It also provides acyl moiety for the preparation of the respective flavor esters.
| | References | [1] George A. Burdock, Encyclopedia of Food and Color Additives, Band 1, 1996
[2] T. Tachihara, H. Hashimoto, S. Ishizaki, T. Komai, A. Fujita, M. Ishikawa and T. Kitahara, Microbial resolution of 2-methylbutyric acid and its application to several chiral flavour compounds, Developments in Food Science, 2006, vol. 43, 97-100
| | Description | 2-Methylbutyric acid has a pungent, acrid odor similar to Roquefort cheese with an acrid taste. At low dilutions, it has a pleasant
fruity taste. May be prepared by decarboxylation of methyl ethyl
malonic acid (with heat); also by oxidation of fermentation amyl
alcohol (fusel oil). | | Chemical Properties | 2-Methylbutyric acid has a pungent, acrid odor similar to Roquefort cheese with an acrid taste. At low dilutions, it has
a pleasant, fruity taste | | Chemical Properties | clear colorless to pale yellowish liquid | | Occurrence | Occurring as the d-, l-, and dl-isomers; the racemic form has been reported found in angelica root oil and coffee; the d-isomer in the ester form has been identified in lavender oil. Also reported found in apple, apricot, berries, grapes, papaya,
peach, guava, pineapple, potato, bell pepper, tomato, peppermint and spearmint oil, vinegar, wheat breads, cheeses, chicken, mutton,
pork, hop oil, beer, cognac, rum, whiskies, cider, cocoa, coffee, tea, peanuts, passion fruit, trassi, mango, plum, tamarind, rice, corn
oil, loquat, scallops, Chinese quince, maté, mammee apple and Roman chamomile oil, cranberry, grape brandy, oriental tobacco,
and strawberry | | Uses | 2-Methylbutyric acid, can be used as food additive for butter, cream, cheese flavor deployment. It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff. It is also used in the synthesis of 2-methylbutyric anhydride. | | Uses | 2-Methylbutyric acid was used in the synthesis of 2-methylbutyric anhydride, an acylating agent. | | Definition | ChEBI: A methylbutyric acid comprising a butyric acid core carrying a 2-methyl substituent. Produced from amino acid leucine during nutrient starvation in bacteria. | | Preparation | By decarboxylation of methyl ethyl malonic acid (with heat); also by oxidation of fermentation amyl alcohol (fusel oil). | | Aroma threshold values | Detection: 10 to 60 ppb. Aroma characteristics at 1.0%: acidic sour, pungent, ripe fruit leather, lingonberry, dirty cheesy, fermented pineapple fruity with a woody nuance | | Taste threshold values | Taste characteristics at 10 ppm: dirty, acidic sour, ripe fruity, with a dairy buttery and cheesy nuance | | General Description | Enantioselective esterification of (+/-)-2-methylbutynic acid catalyzed by Chromobacterium viscosum lipase immobilized in microemulsion-based organogels has been investigated. | | Flammability and Explosibility | Notclassified | | Biochem/physiol Actions | Taste at 10 ppm |
| | 2-Methyl butyric acid Preparation Products And Raw materials |
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