8.22002
Crotonic anhydride
(mixture of cis and trans isomers) for synthesis
동의어(들):
Crotonic anhydride, 2-Butenoic anhydride
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제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
(CH3CH=CHCO)2O
CAS 번호:
Molecular Weight:
154.16
MDL number:
UNSPSC Code:
12352106
EC Index Number:
210-807-1
NACRES:
NA.22
vapor pressure
1 hPa ( 25 °C)
Quality Segment
form
liquid
autoignition temp.
290 °C
potency
2061 mg/kg LD50, oral (Rat)
bp
250 °C
mp
-20 °C
transition temp
flash point 113 °C
density
1.04 g/cm3 at 20 °C
storage temp.
2-30°C
SMILES string
O(C(=O)\C=C\C)C(=O)\C=C\C
InChI
1S/C8H10O3/c1-3-5-7(9)11-8(10)6-4-2/h3-6H,1-2H3/b5-3+,6-4+
InChI key
VJDDQSBNUHLBTD-GGWOSOGESA-N
General description
Crotonic anhydride is also known as 2-butenoic anhydride is commonly used as a precursor in the synthesis of polymers. Its reactive anhydride group makes it an effective acylating agent in esterification reactions, facilitating the formation of esters by reacting with alcohols.
Analysis Note
Assay isomers (GC, area%): ≥ 95.5 % (a/a)
Density (d 20 °C/ 4 °C): 1.038 - 1.040
Identity (IR): passes test
Density (d 20 °C/ 4 °C): 1.038 - 1.040
Identity (IR): passes test
signalword
Danger
Hazard Classifications
Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1B
wgk
WGK 3
flash_point_f
235.4 °F
flash_point_c
113 °C
hcodes
저장 등급
8A - Combustible corrosive hazardous materials