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ChemicalBook--->CAS DataBase List--->623-68-7

623-68-7

623-68-7 Structure

623-68-7 Structure
IdentificationMore
[Name]

Crotonic anhydride
[CAS]

623-68-7
[Synonyms]

2-butenoic anhydride
CROTONIC ANHYDRIDE
TRANS-2-BUTENOIC ANHYDRIDE
2-Butenoicacid,anhydride
anhydridkyselinykrotonove
crotonicacidanhydride
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
[EINECS(EC#)]

210-807-1
[Molecular Formula]

C8H10O3
[MDL Number]

MFCD00009286
[Molecular Weight]

154.16
[MOL File]

623-68-7.mol
Chemical PropertiesBack Directory
[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.)
[Fp ]

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]

623-68-7(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

C
[Risk Statements ]

R34:Causes burns.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
[RIDADR ]

UN 3265 8/PG 3
[WGK Germany ]

3
[RTECS ]

GQ6125000
[Autoignition Temperature]

290 °C
[HazardClass ]

8
[PackingGroup ]

III
[HS Code ]

29161900
[Safety Profile]

Moderately toxic by ingestion. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
[Hazardous Substances Data]

623-68-7(Hazardous Substances Data)
[Toxicity]

LD50 orally in Rabbit: 2061 mg/kg
Hazard InformationBack Directory
[Chemical Properties]

Colorless to pale yellow liquid
[Synthesis Reference(s)]

Tetrahedron Letters, 33, p. 593, 1992 DOI: 10.1016/S0040-4039(00)92318-9
Spectrum DetailBack Directory
[Spectrum Detail]

Crotonic anhydride(623-68-7)MS
Crotonic anhydride(623-68-7)1HNMR
Crotonic anhydride(623-68-7)13CNMR
Crotonic anhydride(623-68-7)IR1
Crotonic anhydride(623-68-7)IR2
Well-known Reagent Company Product InformationBack Directory
[TCI AMERICA]

Crotonic Anhydride,>98.0%(T)(623-68-7)
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