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242845

Acetic anhydride

ACS reagent grade, ≥98.0%, liquid

동의어(들):

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

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제품정보 (DICE 배송 시 비용 별도)

Linear Formula:
(CH3CO)2O
CAS 번호:
108-24-7
Molecular Weight:
102.09
NACRES:
NA.21
PubChem Substance ID:
24854587
UNSPSC Code:
12352100
EC Number:
203-564-8
MDL number:
MFCD00008705
Beilstein/REAXYS Number:
385737
Assay:
≥98.0%
Form:
liquid
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제품 이름

Acetic anhydride, ACS reagent, ≥98.0%

grade

ACS reagent

Quality Level

200

vapor density

3.5 (vs air)

vapor pressure

10 mmHg ( 36 °C), 4 mmHg ( 20 °C)

assay

≥98.0%

form

liquid

autoignition temp.

629 °F

expl. lim.

10.3 %

impurities

MnO4- reducers, passes test

evapn. residue

≤0.003%

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.)

anion traces

chloride (Cl-): ≤5 ppm, phosphate (PO43-): ≤0.001%, sulfate (SO42-): ≤5 ppm

cation traces

Fe: ≤5 ppm, heavy metals: ≤2 ppm

functional group

anhydride, ester

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 is an organic solvent. On dissolution in water it undergoes solvolysis to afford acetic acid. It is widely employed 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.

Application

Acetic anhydride has been used as one of the reaction components in the preparation of:
  • 2-acetylamino-5-aminobenzenesulfonic acid
  • 3,3′-bis(sulfonato)-4,4′-bis(chloroacetamido)azobenzene (BSBCA)
  • 10-acetoxy-9-nitro-octadecanoic acid, allyl ester
  • 9-nitro-oleic acid
It may be used for acetylation of anisole over HBEA zeolite in a batch reactor.

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Danger

Hazard Classifications

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

저장 등급

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

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시험 성적서(COA)

Lot/Batch Number
64597KJ
05724AJ
09518MH
04709KH
04209KH

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문서 라이브러리 방문

Acetylation of anisole by acetic anhydride over a HBEA zeolite-Origin of deactivation of the catalyst.
Rohan D, et al.
J. Catal., 177(2), 296-305 (1998)
Steven R Woodcock et al.
Free radical biology & medicine, 59, 14-26 (2012-12-04)
Nitrated fatty acids are the product of nitrogen dioxide reaction with unsaturated fatty acids. The discovery of peroxynitrite and peroxidase-induced nitration of biomolecules led to the initial reports of endogenous nitrated fatty acids. These species increase during ischemia/reperfusion, but concentrations
Darcy C Burns et al.
Nature protocols, 2(2), 251-258 (2007-04-05)
This protocol describes a procedure for the synthesis of 3,3'-bis(sulfonato)-4,4'-bis(chloroacetamido)azobenzene (BSBCA), a water-soluble, thiol-reactive, photo-switchable cross-linker. In addition, a protocol is outlined for installing the cross-linker in an intramolecular fashion onto proteins bearing two surface-exposed Cys residues. BSBCA is designed
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