520-45-6|Dehydroacetic acidProducts Supply - Chemical intermediates Network

Dehydroacetic acid cas no:520-45-6

Synonyms: 2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid, delta-lactone; 3-Acetyl-4-hydroxy-6-methyl-2H-pyran-2-one; 3-Acetyl-6-methyl-2,4-pyrandione; 3-acetyl-6-methyl-2H-Pyran-2,4(3H)-dione; 3-Acetyl-6-methyl-2-pyranone; DHA; DHAA; Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-;

Identification

NameDehydroacetic acid
CAS520-45-6
Synonyms2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid, delta-lactone; 3-Acetyl-4-hydroxy-6-methyl-2H-pyran-2-one; 3-Acetyl-6-methyl-2,4-pyrandione; 3-acetyl-6-methyl-2H-Pyran-2,4(3H)-dione; 3-Acetyl-6-methyl-2-pyranone; DHA; DHAA; Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-;
EINECS(EC#)208-293-9
Molecular FormulaC8H8O4
Molecular Weight168.15

Chemical Properties

Appearancewhite powder
refractive index1.4379 (20 C)
storage temp0-6°C

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

Hazardclass4.1

Safety Data

Hazard Xn:Harmful;
Risk R22
Safety

Poison by ingestion. Moderately toxic by intraperitoneal route. Questionable carcinogen with experimental tumorigenic data. Combustible when exposed to heat or flame. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazard Codes: Harmful Xn
Risk Statements:
R22: Harmful if swallowed
Safety Statements:
S22: Do not breathe dust
WGK Germany: 1
RTECS: UP8050000

HS Code 29322980

Toxicity

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Source
mouse	LD50	intraperitoneal	1186mg/kg (1186mg/kg)	Journal of Pharmacology and Experimental Therapeutics. Vol. 99, Pg. 98, 1950.
mouse	LD50	oral	1330mg/kg (1330mg/kg)	Shokuhin Eiseigaku Zasshi. Food Hygiene Journal. Vol. 12, Pg. 520, 1971.
rabbit	LDLo	skin	5gm/kg (5000mg/kg)	Journal of the American College of Toxicology. Vol. 4(3), Pg. 123, 1985.
rat	LD50	oral	500mg/kg (500mg/kg)	World Review of Pest Control. Vol. 9, Pg. 119, 1970.

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Dehydroacetic acid cas no:520-45-6

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