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安全信息

33214-M

Sigma-Aldrich

乙酸酐

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99% (GC)

别名:

Acetanhydride, Acetic acid anhydride, Acetyl acetate, Acetyl anhydride, Ethanoic anhydride

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About This Item

线性分子式:
(CH3CO)2O
CAS号:
108-24-7
分子量:
102.09
Beilstein:
385737
EC 号:
203-564-8
MDL编号:
MFCD00008705
UNSPSC代码:
12352100
PubChem化学物质编号:
329754473
NACRES:
NA.21

等级

ACS reagent
puriss. p.a.

质量水平

100

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

蒸汽密度

3.5 (vs air)

蒸汽压

10 mmHg ( 36 °C)
4 mmHg ( 20 °C)

检测方案

≥99% (GC)

自燃温度

629 °F

expl. lim.

10.3 %

杂质

≤0.003% non-volatile matter
≤0.01% KMnO4 red. matter (as O)

折射率

n20/D 1.390 (lit.)

bp

138-140 °C (lit.)

mp

−73 °C (lit.)

密度

1.08 g/mL (lit.)

痕量阴离子

chloride (Cl-): ≤2 mg/kg
phosphate (PO43-): ≤10 mg/kg
sulfate (SO42-): ≤5 mg/kg

痕量阳离子

Al: ≤0.5 mg/kg
B: ≤0.02 mg/kg
Ba: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.05 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤0.1 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.1 mg/kg
Sn: ≤0.1 mg/kg
Zn: ≤0.2 mg/kg

适用性

passes test for reaction against H2SO4

SMILES字符串

CC(=O)OC(C)=O

InChI

1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3

InChI key

WFDIJRYMOXRFFG-UHFFFAOYSA-N

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一般描述

Acetic anhydride is a colorless liquid. On dissolution in water, it undergoes solvolysis to afford acetic acid. It is widely employed as acetylation reagent for the acetylation of various alcohols. Wacher process (starting reagent + a ketene) and Knapsack process (starting reagent = acetaldehyde) have been reported for the industrial preparation of acetic anhydride. It is employed as solvent for various organic reactions.

应用

  • Insights into the Mechanism of Catalytic Activity of Plasmodium Parasite Malate-Quinone Oxidoreductase.: This study delves into the catalytic mechanisms of malate-quinone oxidoreductase, a target for antimalarial drugs, detailing the role of acetic anhydride in probing the enzyme′s structure and function (Ito et al., 2024).
  • Adsorption simulation of 2,4-D pesticide on novel zinc-based 2-amino-4-(1H-1,2,4-triazole-4-yl)benzoic acid coordination complexes using machine learning approach.: Research exploring zinc-based coordination complexes for pesticide adsorption, where acetic anhydride plays a crucial role in the synthesis process, improving adsorption characteristics (Mansab and Rafique, 2024).
  • Lysine acetylation of Hsp16.3: Effect on its structure, chaperone function and influence towards the growth of Mycobacterium tuberculosis.: Investigates the impact of lysine acetylation, facilitated by acetic anhydride, on the tuberculosis pathogen, providing insights into bacterial pathogenesis and potential therapeutic targets (Barik et al., 2024).

警示用语：

Danger

危险分类

Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

WGK

WGK 1

闪点(°F)

120.2 °F

闪点(°C)

49 °C

法规信息

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P Barath et al.
The American journal of pathology, 137(3), 503-509 (1990-09-01)
We used immunohistochemistry to detect tumor necrosis factor (TNF) and in situ hybridization to detect TNF messenger RNA (mRNA) in the intimal mesenchymal-appearing cells and in the medial smooth muscle cells of human atherosclerotic arteries. Medial smooth muscle cells showed

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