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Merck
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文件

242845

Sigma-Aldrich

乙酸酐

ACS reagent, ≥98.0%

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號碼:
203-564-8
MDL號碼:
MFCD00008705
分類程式碼代碼:
12352100
PubChem物質ID:
24854587
NACRES:
NA.21

等級

ACS reagent

品質等級

200

蒸汽密度

3.5 (vs air)

蒸汽壓力

10 mmHg ( 36 °C)
4 mmHg ( 20 °C)

化驗

≥98.0%

形狀

liquid

自燃溫度

629 °F

expl. lim.

10.3 %

雜質

MnO4- reducers, passes test

蒸發殘留物

≤0.003%

折射率

n20/D 1.390 (lit.)

bp

138-140 °C (lit.)

mp

−73 °C (lit.)

溶解度

H2O: slightly soluble

密度

1.08 g/mL (lit.)

負離子痕跡

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

正離子痕跡

Fe: ≤5 ppm
heavy metals: ≤2 ppm

SMILES 字串

CC(=O)OC(C)=O

InChI

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

InChI 密鑰

WFDIJRYMOXRFFG-UHFFFAOYSA-N

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相关类别

一般說明

醋酸酐是一种有机溶剂溶于水后，其可经过溶剂分解得到乙酸。它被广泛用于各种醇的乙酰化。Wacher法（起始试剂＝烯酮）和Knapsack法（起始试剂＝乙醛）已报到可用于工业上制备乙酸酐。

應用

醋酸酐已作为反应组分之一，用于制备：
  • 2-乙酰氨基-5-氨基苯磺酸
  • 3,3′-双(磺酸根基)-4,4′-双(氯乙酰氨基)偶氮苯(BSBCA)
  • 10-乙酸基-9-硝基硬脂酸，烯丙酯
  • 9-硝基油酸
可用于在间歇式反应器中通过HBEA沸石乙酰化苯甲醚。

訊號詞

Danger

危險分類

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

儲存類別代碼

3 - Flammable liquids

水污染物質分類（WGK）

WGK 1

閃點（°F）

120.2 °F - closed cup

閃點（°C）

49 °C - closed cup

個人防護裝備

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

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分析证书(COA)

Lot/Batch Number
MKCQ9026
MKCQ2287
MKCQ2286
MKCN5094
MKCM8600

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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)
Maciej Podgórski
Dental materials : official publication of the Academy of Dental Materials, 27(8), 748-754 (2011-04-26)
In this study acetyloxypropylene dimethacrylate was synthesized and proposed as an alternative monomer for triethyleneglycol dimethacrylate (TEGDMA) in dental mixtures. The monomer was prepared by the reaction of glycerol dimethacrylate with acetic anhydride. The exchange reaction was carried out in
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