Home Categories Chemical Reagents Isobutyric anhydride
A4996712

Isobutyric anhydride , 98% , 97-72-3

Synonym(s):
2-Methylpropionic anhydride;Bis(2-methylpropionic acid) anhydride, 2-Methylpropionic anhydride;Isobutyric anhydride

CAS NO.:97-72-3

Empirical Formula: C8H14O3

Molecular Weight: 158.2

MDL number: MFCD00008913

EINECS: 202-603-6

Update time: 2022-07-08

PRODUCT Properties

Melting point: -56 °C (lit.)
Boiling point: 182 °C (lit.)
Density  0.954 g/mL at 25 °C (lit.)
vapor density  5.45 (vs air)
vapor pressure  10 mm Hg ( 67 °C)
refractive index  n20/D 1.406(lit.)
Flash point: 152 °F
storage temp.  Store below +30°C.
form  Liquid
color  Clear colorless
explosive limit 1.09%, 87°F
Water Solubility  decomposes
Sensitive  Moisture Sensitive
BRN  386267
Dielectric constant 13.9(20℃)
Exposure limits ACGIH: TWA 10 ppm
NIOSH: TWA 10 ppm(30 mg/m3); STEL 15 ppm(45 mg/m3)
LogP 1.1 at 25℃

Description and Uses

Isobutyric anhydride was used in the synthesis of 4-O-isobutyryl derivative via reaction with octyl β-D-glucopyranoside in the presence of C2-symmetric chiral 4-pyrrolidinopyridine as a catalyst.

Safety

Symbol(GHS) 
GHS05,GHS06
Signal word  Danger
Hazard statements  H301+H311-H314
Precautionary statements  P270-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P361+P364
Hazard Codes  C
Risk Statements  34-21/22
Safety Statements  26-36/37/39-45
RIDADR  2922
WGK Germany  3
RTECS  NQ5550000
13-21
Autoignition Temperature 624 °F
TSCA  Yes
HS Code  2915 90 70
HazardClass  8
PackingGroup  II
Toxicity LD50 orally in Rabbit: 266 mg/kg LD50 dermal Rabbit 475 mg/kg

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