113018
Crotonic acid
98%
Synonym(s):
trans-2-Butenoic acid
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About This Item
Linear Formula:
CH3CH=CHCOOH
CAS Number:
Molecular Weight:
86.09
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
203-533-9
Beilstein/REAXYS Number:
1719943
MDL number:
Assay:
98%
vapor density
2.97 (vs air)
Quality Level
vapor pressure
0.19 mmHg ( 20 °C)
assay
98%
autoignition temp.
744 °F
expl. lim.
15.1 %, 171 °F, 2.2 %, 135 °F
bp
180-181 °C (lit.)
mp
70-72 °C (lit.)
solubility
H2O: soluble
density
1.027 g/mL at 25 °C (lit.)
functional group
carboxylic acid
SMILES string
[H]\C(C)=C(\[H])C(O)=O
InChI
1S/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6)/b3-2+
InChI key
LDHQCZJRKDOVOX-NSCUHMNNSA-N
General description
Crotonic acid undergoes esterification with butan-2-ol by following second order reaction kinetics.
Application
Crotonic acid is used in the copolymerization of crotonic acid hydrogel systems by using gamma-rays. The crosslinked copolymeric crotonic acid hydrogels release fertilizers and drugs that help to prevent environmental pollution.
Preparation Note
Crotonic acid dissolves in water at a concentartion of 100 mg/ml to yield a clear, colorless solution.
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signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 2
flash_point_f
190.4 °F - closed cup
flash_point_c
88 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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Donya Kamravamanesh et al.
AMB Express, 7(1), 143-143 (2017-07-09)
Poly-β-hydroxybutyrate (PHB) production from CO
Y S Liang et al.
Journal of animal science, 95(4), 1727-1738 (2017-05-04)
The objective of this study was to evaluate the effect of residual feed intake (RFI) on rumen function in finishing lambs. A total of 60 male Hu lambs (average initial BW = 25.2 ± 2.5kg) were used and were offered
R F Bing et al.
Hypertension (Dallas, Tex. : 1979), 5(6), 951-957 (1983-11-01)
We have studied the possible vasodepressor role of the renal medulla by chemical medullectomy. Bromoethylamine hydrobromide (200 mg/kg) was injected to induce selective renal medullary necrosis in rats. The acute effects on sodium balance and long-term effects on blood pressure