| Identification | More | [Name]
4-Methyloctanoic acid | [CAS]
54947-74-9 | [Synonyms]
4-METHYLCAPRYLIC ACID
(+/-)-4-METHYLOCTANOIC ACID
4-METHYLOCTANOIC ACID
FEMA 3575
FEMA NUMBER 3575
HIRCINOIC ACID
(R,S)-(+/-)-4-METHYLOCTANOIC ACID
4-methyl-octanoicaci
Octanoic acid, 4-methyl-
4-METHYLOCTANOIC ACID 98+%
METHYLOCTANSAEURE, 4-
4-Methyl-n-octanoic Acid | [EINECS(EC#)]
259-404-2 | [Molecular Formula]
C9H18O2 | [MDL Number]
MFCD00051938 | [Molecular Weight]
158.24 | [MOL File]
54947-74-9.mol |
| Chemical Properties | Back Directory | [Melting point ]
-29.5°C (estimate) | [Boiling point ]
149 °C22 mm Hg(lit.)
| [density ]
0.91 g/mL at 25 °C(lit.)
| [FEMA ]
3575 | [refractive index ]
n20/D 1.433(lit.)
| [Fp ]
>230 °F
| [storage temp. ]
−20°C
| [solubility ]
Chloroform (Slightly), DMSO (Sparingly), Ethyl Acetate (Slightly) | [form ]
clear liquid | [pka]
4.78±0.10(Predicted) | [color ]
Colorless to Light yellow to Light orange | [Odor]
at 10.00 % in propylene glycol. fatty waxy musty plastic dairy creamy milk | [biological source]
synthetic | [Odor Type]
fatty | [JECFA Number]
271 | [BRN ]
1755426 | [InChIKey]
LEGGANXCVQPIAI-UHFFFAOYSA-N | [LogP]
3.25 | [CAS DataBase Reference]
54947-74-9(CAS DataBase Reference) | [NIST Chemistry Reference]
4-Methyloctanoic acid(54947-74-9) | [EPA Substance Registry System]
54947-74-9(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C,Xi,Xn | [Risk Statements ]
R34:Causes burns.
R36/37/38:Irritating to eyes, respiratory system and skin .
R21/22:Harmful in contact with skin and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 3265 8/PG 3
| [WGK Germany ]
1
| [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
29159000 |
| Hazard Information | Back Directory | [Description]
4-Methyloctanoic acid has a fatty, musty, plastic odor. | [Chemical Properties]
4-Methyloctanoic acid has a fatty, musty, plastic odor. This compound is also reported to have a goat, costus, mutton
odor | [Chemical Properties]
Colorless liquid | [Physical properties]
4-Methyloctanoic acid is one of the acids mainly responsible for the so-called "soo" odour of mutton. The analogue 4-Ethyloctanoic acid (found in Virginia tobacco and Costus root oil) also has a related goaty odor; this analog has the lowest threshold of all the fatty acids at 1.8 ppb. 4-Methyloctanoic acid is used in flavours for cheese, meat, tobacco and (possibly) fish. Normal use levels in finished consumer product: up to 3 ppm. | [Occurrence]
Reported found in cooked mutton fat, raw and cooked mutton, lamb, and blue, cheddar, parmesan, provolone
and romano cheeses | [Uses]
Hircinoic Acid, can be used as flavors and fragrance additive. It is also a building block use din sythesis of various chemical compounds such as, rac-Mono-(4-methyloctanyl)-phthalate (M566530). | [Definition]
ChEBI: 4-methyl-octanoic acid is a medium-chain fatty acid. | [Aroma threshold values]
Aroma characteristics at 1.0% in PG: waxy, fatty, meaty, reheated beef-like with a slightly lactonic cheesy
nuance | [Taste threshold values]
Taste characteristics at 10 ppm: fatty, waxy, creamy and lactonic with a satiating fatty mouthfeel and metallic nuances. | [General Description]
4-Methyloctanoic acid is a branched fatty acid commonly used in the flavor and fragrance industries. This compound gives sweaty and goaty flavors to the mutton meat and goat′s milk cheese, respectively. | [Biochem/physiol Actions]
Taste at 10 ppm | [storage]
Store at -20°C |
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