ChemicalBook > CAS DataBase List > Crotonic anhydride

Crotonic anhydride

Product Name
Crotonic anhydride
CAS No.
623-68-7
Chemical Name
Crotonic anhydride
Synonyms
Nsc97397;Wln: 2U1vov1U2;CROTONIC ANHYDRIDE;2-Butensureanhydrid;CROTONSAEUREANHYDRID;2-butenoic anhydride;Dicrotonic anhydride;Biscrotonic anhydride;crotonicacidanhydride;But-2-enoic anhydride
CBNumber
CB6751209
Molecular Formula
C8H10O3
Formula Weight
154.17
MOL File
623-68-7.mol
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Crotonic anhydride Property

Melting point:
-20°C
Boiling point:
248 °C(lit.)
Density 
1.04 g/mL at 25 °C(lit.)
vapor pressure 
1 hPa (25 °C)
refractive index 
n20/D 1.473(lit.)
Flash point:
231 °F
storage temp. 
Store below +30°C.
solubility 
soluble in Ether
form 
clear liquid
color 
Colorless to Light orange to Yellow
CAS DataBase Reference
623-68-7(CAS DataBase Reference)
EPA Substance Registry System
2-Butenoic acid, anhydride (623-68-7)
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Safety

Hazard Codes 
C
Risk Statements 
34
Safety Statements 
26-36/37/39-45
RIDADR 
UN 3265 8/PG 3
WGK Germany 
3
RTECS 
GQ6125000
Autoignition Temperature
290 °C
HS Code 
2916 19 95
HazardClass 
8
PackingGroup 
III
Hazardous Substances Data
623-68-7(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 2061 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

H400Very toxic to aquatic life

Precautionary statements

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P363Wash contaminated clothing before reuse.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.22002
Product name
Crotonic anhydride
Purity
(mixture of cis and trans isomers) for synthesis
Packaging
100mL
Price
$39.7
Updated
2024/03/01
TCI Chemical
Product number
C0420
Product name
Crotonic Anhydride
Purity
>98.0%(T)
Packaging
25g
Price
$16
Updated
2024/03/01
TRC
Product number
C818793
Product name
Crotonic anhydride
Packaging
1g
Price
$55
Updated
2021/12/16
TRC
Product number
C818793
Product name
Crotonic anhydride
Packaging
2.5g
Price
$65
Updated
2021/12/16
AK Scientific
Product number
C949
Product name
Crotonicanhydride,mixtureofcisandtransisomers
Packaging
25g
Price
$70
Updated
2021/12/16
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Crotonic anhydride Chemical Properties,Usage,Production

Chemical Properties

Colorless to pale yellow liquid

Synthesis Reference(s)

Tetrahedron Letters, 33, p. 593, 1992 DOI: 10.1016/S0040-4039(00)92318-9

Safety Profile

Moderately toxic by ingestion. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.

Crotonic anhydride Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Crotonic anhydride manufacturers

Career Henan Chemical Co
Product
Crotonic anhydride 623-68-7
Price
US $7.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
100kg
Release date
2018-12-21

623-68-7, Crotonic anhydrideRelated Search:

Phthalic anhydride CIS-BUTENEDIOIC ANHYDRIDE Trifluoromethanesulfonic anhydride Chromium(VI) oxide Trimellitic Anhydride Di-tert-butyl dicarbonate Succinic anhydride Isatoic Anhydride Erythromycin Estolate Acetic anhydride 3-PHENYLACRYLIC ANHYDRIDE CROTONIC ANHYDRIDE, 95%, PREDOMINANTLY T RANS Crotonic acid ABERCHROME 670 TIGLIC ANHYDRIDE Crotonic anhydride 3,4,5-TRIMETHOXYCINNAMIC ACID ANHYDRIDE TOSLAB 97311

  • 2-Butenoicacid,anhydride
  • anhydridkyselinykrotonove
  • crotonicacidanhydride
  • CROTONIC ANHYDRIDE
  • 2-butenoic anhydride
  • TRANS-2-BUTENOIC ANHYDRIDE
  • 2-Butensureanhydrid
  • CROTONSAEUREANHYDRID
  • trans-crotonic acid anhydride
  • Bis[(E)-2-butenoic acid]anhydride
  • Biscrotonic anhydride
  • Dicrotonic anhydride
  • Bis(2-butenoic)anhydride
  • Di(2-butenoic)anhydride
  • Nsc97397
  • Wln: 2U1vov1U2
  • But-2-enoic anhydride
  • Crotonic anhydride, 2-Butenoic anhydride
  • (E)-but-2-enoic anhydride
  • 2-Butenoic acid,1,1'-anhydride
  • (E)-2-butenoic acid [(E)-1-oxobut-2-enyl] ester
  • (2E)-2-Butenoic anhydride
  • Crotonic Anhydride &gt
  • CROTONIC ANHYDRIDE (MIXTURE OF CIS AND T
  • Crotonic anhydride ISO 9001：2015 REACH
  • 623-68-7
  • CH3CHCHCO2O
  • Pharmaceutical Intermediates