2-Methylbutyric acid

Names

[ CAS No. ]:
116-53-0

[ Name ]:
2-Methylbutyric acid

[Synonym ]:
2-Methyl butyric acid
.α.-Methylbutyric acid
DL-2-Methylbutyric Acid
MFCD00002669
QVY2&1
2-Methylbutyric acid
Butanoic acid, 2-methyl-
EINECS 204-145-2
UNII:PX7ZNN5GXK
(±)-2-Methylbutyric acid
2-Methylbutanoic acid

Chemical & Physical Properties

[ Density]:
1.0±0.1 g/cm3

[ Boiling Point ]:
175.3±8.0 °C at 760 mmHg

[ Melting Point ]:
-70ºC

[ Molecular Formula ]:
C₅H₁₀O₂

[ Molecular Weight ]:
102.132

[ Flash Point ]:
73.9±0.0 °C

[ Exact Mass ]:
102.068077

[ PSA ]:
37.30000

[ LogP ]:
1.13

[ Vapour Pressure ]:
0.6±0.7 mmHg at 25°C

[ Index of Refraction ]:
1.418

[ Storage condition ]:
0-6°C

[ Water Solubility ]:
45 g/L (20 ºC)

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EK7897000

CHEMICAL NAME :: Butanoic acid, 2-methyl-

CAS REGISTRY NUMBER :: 116-53-0

BEILSTEIN REFERENCE NO. :: 1098537

LAST UPDATED :: 199710

DATA ITEMS CITED :: 5

MOLECULAR FORMULA :: C5-H10-O2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1870 uL/kg

TOXIC EFFECTS :: Gastrointestinal - changes in structure or function of salivary glands Gastrointestinal - hypermotility, diarrhea Musculoskeletal - other changes

REFERENCE :: ATDAEI Acute Toxicity Data. Journal of the American College of Toxicology, Part B. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1- 1990- Volume(issue)/page/year: 1,171,1992

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 1460 uL/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Behavioral - ataxia Gastrointestinal - other changes

REFERENCE :: ATDAEI Acute Toxicity Data. Journal of the American College of Toxicology, Part B. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1- 1990- Volume(issue)/page/year: 1,171,1992 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X9650 No. of Facilities: 11 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 193 (estimated) No. of Female Employees: 11 (estimated)

Safety Information

[ Symbol ]:

GHS05, GHS07

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H302 + H312-H314

[ Precautionary Statements ]:
P280-P305 + P351 + P338-P310

[ Personal Protective Equipment ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
C:Corrosive

[ Risk Phrases ]:
R21/22;R34

[ Safety Phrases ]:
S26-S36/37/39-S45

[ RIDADR ]:
UN 3265

[ WGK Germany ]:
1

[ RTECS ]:
EK7897000

[ Packaging Group ]:
III

[ Hazard Class ]:
8.0

[ HS Code ]:
29156090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 29156090

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