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| | DL-3-Methylvaleric acid Basic information |
| | DL-3-Methylvaleric acid Chemical Properties |
| Melting point | -41 °C | | Boiling point | 196-198 °C (lit.) | | density | 0.93 g/mL at 25 °C (lit.) | | FEMA | 3437 | 3-METHYLPENTANOIC ACID | | refractive index | n20/D 1.416(lit.) | | Fp | 185 °F | | storage temp. | Sealed in dry,Room Temperature | | form | clear liquid | | pka | pK1:4.766 (25°C) | | color | Colorless to Almost colorless | | Specific Gravity | 0.930 | | Odor | at 1.00 % in dipropylene glycol. animal sharp acidic cheesy green fruity sweaty | | Odor Type | animal | | Water Solubility | insoluble | | JECFA Number | 262 | | BRN | 1720696 | | InChIKey | IGIDLTISMCAULB-UHFFFAOYSA-N | | LogP | 1.66 | | CAS DataBase Reference | 105-43-1(CAS DataBase Reference) | | NIST Chemistry Reference | Pentanoic acid, 3-methyl-(105-43-1) | | EPA Substance Registry System | Pentanoic acid, 3-methyl- (105-43-1) |
| Hazard Codes | C | | Risk Statements | 34 | | Safety Statements | 26-36/37/39-45 | | RIDADR | UN 3265 8/PG 2 | | WGK Germany | 3 | | F | 13 | | Hazard Note | Corrosive | | TSCA | T | | HazardClass | 8 | | PackingGroup | II | | HS Code | 29159080 |
| | DL-3-Methylvaleric acid Usage And Synthesis |
| Description | 3-Methylpentanoic has a sour, herbaceous, slightly green odor.
This is synthesized from the diethylester of sec-butyl-malonic acid. | | Chemical Properties | clear colorless to slightly yellow liquid | | Occurrence | Reported found in the oil from tobacco leaves (d-form), baked potato, parmesan, provolone and romano cheese,
goat and sheep cheese, lamb fat, rum, cocoa, black tea and chempedak (Arthocarpus polyphema). | | Uses | 3-Methylvaleric acid (3-Methylpentanoic acid) was used in the synthesis of 3-methyl-1-pentanol. | | Definition | ChEBI: 3-methylvaleric acid is a methyl-branched fatty acid that is pentanoic acid which carries a methyl group at position 3. It has a role as a plant metabolite, an animal metabolite, a fungal metabolite and a flavouring agent. It is a methyl-branched fatty acid, a short-chain fatty acid, a branched-chain saturated fatty acid and a monocarboxylic acid. It is a conjugate acid of a 3-methylvalerate. | | Preparation | From the diethylester of sec-butyl-malonic acid. | | Aroma threshold values | Detection: 46 to 280 ppb | | Taste threshold values | Taste characteristics at 30 ppm: sour, cheesey, fresh with fruity notes | | Synthesis Reference(s) | Journal of the American Chemical Society, 75, p. 6342, 1953 DOI: 10.1021/ja01120a539
The Journal of Organic Chemistry, 65, p. 397, 2000 DOI: 10.1021/jo991218a
Organic Syntheses, Coll. Vol. 2, p. 416, 1943 |
| | DL-3-Methylvaleric acid Preparation Products And Raw materials |
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