欧美搡BBBBB搡BBBBB-欧美搡BBBBB摔BBBBB-欧美色成人综合天天影院-欧美色精品人妻在线视频-欧美色久-欧美色欧美亚洲日韩在线播放

1. Product identifier

Substance name ： Methyl acetoacetate

Synonyms: Methyl acetoacetaten; Acetoacetic acid methyl ester; Butanoic acid, 3-oxo-, methyl ester:; methyl 3-oxobutanoate; MAA

CAS No. ： 105-45-3

EINECS No. ： 203-299-8

Molecular Formula ： C₅H₈O₃

M olecular   weight ： 116.1152

Molecular Structure ：

 

2. Physical and chemical properties

Character: colorless transparent liquid with aromatic fragrance.

Density ： 1.039g/cm³

Melting point ： -80 ℃

Boiling point ： 169.4°C at 760 mmHg

Flash point ： 61.6°C

W ater solubility ： 460 g/L (20 ℃ )

Vapour pressure ： 1.54mmHg at 25°C

Solubility(ies) : Miscible with ethanol and ether, slightly soluble in water.  

3. Hazards identification

Hazard pictogram(s):

Xi :Irritant;

hazard statement ： R36

precautionary statement ： S26

4.Specification:

ITEM	STANDARD
Appearance	transparent liquid
Content	≥99%
Acidity (as CH3COOH)	≤0.20%
Moisture	≤0.10%

Application ：

( 1 ). Raw material for Pharmaceutical intermediates of Vitamin A, B, E and Carotene.

( 2) . Agricultural intermediates of herbicide, pesticide, bactericide and rodenticide.

( 3 ). Composition for cellulose ether and Cellulose resin mixed solvent.