grade
derivatization grade ((GC derivatization))
vapor density
3.5 (vs air)
vapor pressure
10 mmHg ( 36 °C), 4 mmHg ( 20 °C)
autoignition temp.
629 °F
expl. lim.
10.3 %
packaging
pkg of 10 × 2 mL
refractive index
n20/D 1.390 (lit.)
bp
138-140 °C (lit.)
mp
−73 °C (lit.)
solubility
H2O: slightly soluble
density
1.08 g/mL (lit.)
SMILES string
CC(=O)OC(C)=O
InChI
1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3
InChI key
WFDIJRYMOXRFFG-UHFFFAOYSA-N
General description
Acetic anhydride (CH3CO)2O, also known as ethanoric anhydride, is a colorless liquid with a strong pungent odor. It has a boiling point of 140°C (284°F). It is soluble in cold water, decomposes in hot water to form acetic acid, and is soluble in alcohol, chloroform and ether. It is a highly corrosive flammable liquid with harmful vapour. Exposure to acetic anhydride can occur via eye or skin contact, ingestion and inhalation.
Application
Suitable for the derivatization of acetaminophen, alcohols, amines, amino acids, arginyl peptides, aryl sulfate esters, carbamates, cerebrosides, cystine and cysteine (in peptides), desmethyldoxepin, 3,4-dihydroxyphenylglycol, hydroxamic acids, hydroxyamines, n-hydroxycarbamates, 4-methoxy and 3,4-dimethoxyphenethylamine, nucleosides bases and sugars, peptides, phenolalkylamines, phenylethylamines, phenylthiohydantoin amino acid, serotonin, and tryptamines.
Other Notes
Reagent for acetyl, o-acetyl, N-acetyl-N, permethyl acetyl, aryl acetate, β-carboline, methyl ester, acetyl or trifluoroacetyl phenylthihydantoins, n-trifluoroacetyl, bis-trimethylsilyl, trimethylsilyl polyamino alcohol, and O-trimethylsilyl (TMS).
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
存储类别
3 - Flammable liquids
wgk
WGK 1
flash_point_f
120.2 °F - closed cup
flash_point_c
49 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter