8.02650
Crotonic acid
for synthesis
别名:
Crotonic acid, β-Methylacrylic acid, 2-Butenoic acid
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关于此项目
线性分子式:
CH3CH=CHCOOH
化学文摘社编号:
分子量:
86.09
UNSPSC Code:
12352106
EC Index Number:
203-533-9
NACRES:
NA.22
MDL number:
Assay:
≥99.0% (GC)
Form:
crystals
vapor pressure
0.25 hPa ( 20 °C)
Quality Segment
assay
≥99.0% (GC)
form
crystals
autoignition temp.
500 °C
potency
1000 mg/kg LD50, oral (Rat), 600 mg/kg LD50, skin (Rabbit)
pH
3 (20 °C, 10 g/L in H2O)
bp
185.0-199.5 °C/1013 hPa
mp
70-73 °C
transition temp
flash point 90 °C
density
1.02 g/cm3 at 20 °C
bulk density
543 kg/m3
storage temp.
2-30°C
SMILES string
OC(=O)\C=C\C
InChI
1S/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6)/b3-2+
InChI key
LDHQCZJRKDOVOX-NSCUHMNNSA-N
Analysis Note
Assay (GC, area%): ≥ 99.0 % (a/a)
Melting range (lower value): ≥ 70 °C
Melting range (upper value): ≤ 73 °C
Identity (IR): passes test
Melting range (lower value): ≥ 70 °C
Melting range (upper value): ≤ 73 °C
Identity (IR): passes test
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signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1
wgk
WGK 2
flash_point_f
190.4 °F - closed cup
flash_point_c
88 °C - closed cup
存储类别
8A - Combustible corrosive hazardous materials