| Identification | More | [Name]
(S)-(+)-2-Methylbutyric acid | [CAS]
1730-91-2 | [Synonyms]
RARECHEM AL BO 1316
(S)-(+)-2-METHYLBUTYRIC ACID
Butanoic acid, 2-methyl-, (2S)-
(S)-(+)-2-Methylbutyric acid 98% | [Molecular Formula]
C5H10O2 | [MDL Number]
MFCD00063166 | [Molecular Weight]
102.13 | [MOL File]
1730-91-2.mol |
| Chemical Properties | Back Directory | [Appearance]
clear colorless liquid | [Melting point ]
-55°C | [alpha ]
19 º (c=neat) | [Boiling point ]
78 °C/15 mmHg (lit.) | [density ]
0.938 g/mL at 25 °C(lit.)
| [FEMA ]
2695 | [refractive index ]
n20/D 1.406(lit.)
| [Fp ]
165 °F
| [storage temp. ]
2-8°C
| [solubility ]
Chloroform (Sparingly), Methanol (Sparingly) | [form ]
Liquid | [pka]
4.80±0.10(Predicted) | [color ]
Clear colorless | [Odor]
fruity sweet | [optical activity]
[α]20/D +19°, neat | [BRN ]
1720485 | [Stability:]
Hygroscopic | [InChIKey]
WLAMNBDJUVNPJU-BYPYZUCNSA-N | [LogP]
1.051 (est) | [CAS DataBase Reference]
1730-91-2(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R34:Causes burns.
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 2
| [WGK Germany ]
3
| [F ]
13 | [HS Code ]
29159000 |
| Hazard Information | Back Directory | [Chemical Properties]
clear colorless liquid | [Uses]
(S)-(+)-2-Methylbutyric Acid is a chiral starting reagent used in various synthetic preparations. | [Uses]
(S)-(+)-2-Methylbutyric acid may be used in the preparation of the stereoisomers of (R)-lavandulyl (S)-2-methylbutanoate and (R)-maconelliyl (S)-2-methylbutanoate, which are female sex pheromones found in pink hibiscus mealybug. | [Definition]
ChEBI: The (S)-enantiomer of 2-methylbutanoic acid. | [Purification Methods]
Purify the acid by distilling it in vacuo [Sax & Bergmann J Am Chem Soc 77 1910 1955, Doering & Aschner J Am Chem Soc 75 393 1953 ]. The methyl ester is formed by addition of diazomethane and has b 112-115o/760mm, [] D +21.1o (c 1.7, MeOH). [Beilstein 2 IV 888.] |
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