Basic information
- Name:
Butanoic acid,3-methyl-
- Superlist Name:
- Isovaleric acid
- CAS No.:
503-74-2
- Molecular Structure:

- Formula:
- C5H10O2
- Molecular Weight:
- 102.15
- Synonyms:
- Isopentanoicacid;Isovalericacid (8CI);3-Methyl-n-butyric acid;3-Methylbutanoic acid;3-Methylbutyric acid;3-Methylbutyrate;Isopropylacetic acid;NSC 62783;b-Methylbutyric acid;Delphinic acid;Acetic acid, isopropyl-;
- EINECS:
- 207-975-3
- Density:
- 0.962 g/cm3
- Melting Point:
- -35 °C
- Boiling Point:
- 175.3 °C at 760 mmHg
- Flash Point:
- 73.4 °C
- Solubility:
- 25 g/L (20 °C) in water
- Appearance:
- colorless to yellowish transparent liquid.
- Hazard Symbols:
C,
T- Risk Codes:
- 34-24-22
- Safety Description:
- 26-36/37/39-45-38-28A Details
- Transport Information:
- UN 3265 8/PG 2
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Chemistry

IUPAC Name:3-methylbutanoic acid
Molecular Formula:C5H10O2
Molecular Weight:102.131700 g/mol
Appearance:colorless to yellowish transparent liquid
Melting Point:-35 °C
Boiling Point:176 °C
Flash Point:159 °F
Density:0.926
vapor pressure:0.38 mm Hg ( 20 °C)
FEMA:3102
refractive index:n20/D 1.403(lit.)
Water Solubility:25 g/L (20 °C)
Merck:14,5231
BRN:1098522
Synonyms of ISOVALERIC ACID(503-74-2):
BETA-METHYLBUTYRIC ACID;ISOPENTANOIC ACID;ISOPROPYLACETIC ACID;FEMA 3102;ISOVALERIC ACID;3-METHYLBUTANOIC ACID;3-METHYLBUTYRIC ACID;AKOS BBS-00003796
Categories of ISOVALERIC ACID(503-74-2):
Pharmaceutical Raw Materials
Uses
ISOVALERIC ACID is used widely in perfumery.
ISOVALERIC ACID is a major component of the cause of unpleasant foot odor.
ISOVALERIC ACID has been proposed that it is the anticonvulsant agent in valerian.
Safety Profile
Hazard Codes:C
,T 
Risk Statements:34-24-22
34:Causes burns
24:Toxic in contact with skin
22:Harmful if swallowed
Safety Statements:26-36/37/39-45-38-28A
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
38:In case of insufficient ventilation, wear suitable respiratory equipment
28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
RIDADR:UN 3265 8/PG 2
WGK Germany:1
RTECS:NY1400000
F:13
HazardClass:6.1
PackingGroup:III
Specification
First Aid Measures of ISOVALERIC ACID(503-74-2):
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin: Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion: Get medical aid immediately. Wash mouth out with water.
Inhalation: Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Storage of ISOVALERIC ACID(503-74-2):
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Corrosives area.

