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2-Butenoic acid,1,1'-anhydride cas no:623-68-7

Synonyms: 2-Butenoicacid, anhydride (9CI);Crotonic anhydride (6CI,7CI,8CI);2-Butenoic anhydride;Crotonic acid anhydride;NSC 97397;Crotonic Anhydride;

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Identification
Chemical Properties
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
Safety Data
Toxicity

Identification

Name2-Butenoic acid,1,1'-anhydride
CAS623-68-7
Synonyms2-Butenoicacid, anhydride (9CI);Crotonic anhydride (6CI,7CI,8CI);2-Butenoic anhydride;Crotonic acid anhydride;NSC 97397;Crotonic Anhydride;
EINECS(EC#)210-807-1
Molecular FormulaC₈H₁₀O₃
Molecular Weight154.16

Chemical Properties

refractive indexn20/D 1.473(lit.)

Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)

Hazardclass8

Safety Data

Hazard C: Corrosive;
Risk R34
Safety

Moderately toxic by ingestion. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazard Codes:
Corrosive 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 the label whenever possible.)
RIDADR: UN 3265 8/PG 3
WGK Germany: 3
RTECS: GQ6125000
HazardClass: 8
PackingGroup III

Toxicity

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
rat	LD50	oral	2830mg/kg (2830mg/kg)	?	American Industrial Hygiene Association Journal. Vol. 23, Pg. 95, 1962.

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