Todas as fotos(2)

242845

Sigma-Aldrich

Acetic anhydride

ACS reagent, ≥98.0%

Fórmula linear:
(CH3CO)2O
Número CAS:
Peso molecular:
102.09
Beilstein:
385737
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.21

Nível de qualidade

200

grau

ACS reagent

densidade de vapor

3.5 (vs air)

pressão de vapor

10 mmHg ( 36 °C)
4 mmHg ( 20 °C)

teor

≥98.0%

forma

liquid

temperatura de autoignição

629 °F

Lim. expl.

10.3 %

Impurezas

MnO4- reducers, passes test

resíduo de evaporação

≤0.003%

índice de refração

n20/D 1.390 (lit.)

pb

138-140 °C (lit.)

pf

−73 °C (lit.)

solubilidade

H2O: slightly soluble

densidade

1.08 g/mL (lit.)

traços de ânion

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

traços de cátion

Fe: ≤5 ppm
heavy metals: ≤2 ppm

SMILES string

CC(=O)OC(C)=O

InChI

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

InChI key

WFDIJRYMOXRFFG-UHFFFAOYSA-N

Procurando produtos similares? Visit Guia de comparação de produtos

Categorias relacionadas

Descrição geral

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.

Aplicação

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.

Embalagem

1, 6×1, 3 kg in glass bottle
5, 100, 4×100 g in glass bottle

Palavra indicadora

Danger

Classificações de perigo

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

Código de classe de armazenamento

3 - Flammable liquids

WGK

WGK 1

Ponto de fulgor (ºF)

120.2 °F - closed cup

Ponto de fulgor (ºC)

49 °C - closed cup

Equipamento de proteção individual

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Certificado de análise

Certificado de origem

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
David G Simmons et al.
BMC genomics, 9, 352-352 (2008-07-30)
The Prolactin (PRL) hormone gene family shows considerable variation among placental mammals. Whereas there is a single PRL gene in humans that is expressed by the pituitary, there are an additional 22 genes in mice including the placental lactogens (PL)
Lakshmi Pillai-Kastoori et al.
PLoS genetics, 10(7), e1004491-e1004491 (2014-07-11)
Ocular coloboma is a sight-threatening malformation caused by failure of the choroid fissure to close during morphogenesis of the eye, and is frequently associated with additional anomalies, including microphthalmia and cataracts. Although Hedgehog signaling is known to play a critical

Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.

Entre em contato com a assistência técnica