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Merck
CN

8.00504

Sigma-Aldrich

Isobutyric anhydride

for synthesis

Synonym(s):

Isobutyric anhydride, Bis(2-methylpropionic acid) anhydride, 2-Methylpropionic anhydride

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About This Item

Linear Formula:
[(CH3)2CHCO]2O
CAS Number:
97-72-3
Molecular Weight:
158.19
MDL number:
MFCD00008913
UNSPSC Code:
12352106
EC Index Number:
202-603-6

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vapor pressure

5 hPa ( 50 °C)

Assay

≥97.0% (GC)

autoignition temp.

375 °C

potency

266 mg/kg LD50, oral (Rat)
475 mg/kg LD50, skin (Rabbit)

expl. lim.

1-6.2 % (v/v)

mp

-69 °C

transition temp

flash point 66 °C

density

0.95 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C8H14O3/c1-5(2)7(9)11-8(10)6(3)4/h5-6H,1-4H3

InChI key

LSACYLWPPQLVSM-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 97.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.950 - 0.953
Identity (IR): passes test

Regulatory Information

危险化学品
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