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.

supplier list

Qingdao On-Billion Industrial Co., Ltd.: Tel:+86-(571)-8591-8425; Address: A9/F, Qingadao World Trade Centre, 6 Xianggang Zhong Road, Qingdao 266071,

Natong Acetic Acid Chemical Co., Ltd.: Tel:+86-(513)-85544520; Address: Nanshi Road, No. 101, Tangzha, Nantong, Jiangshu 226002,

Connect Chemicals GmbH: Tel:+49-(2102)-2077 0; Address: Zapp-Platz 1, Ratingen D-40880,

Synasia Fine Chemicals Inc.: Tel:+1-(732)-205-9880; Address: 240 Amboy Avenue, Metuchen, New Jersey 08840,

Shanghai Re-found Chemical Co Ltd: Tel:+86-(21)-33927850; Address: Room 1705 Information Tower No.1403 Minsheng Road, Pudong, Shanghai 200135,

Trust & We Co., Ltd.: Tel:86-21-61551611; Address: 601, No. 1, 2277 Nong, Zu Chongzhi Road, Zhangjiang Hightech. Park, Pudong, Shanghai, China.

AOKChem Co., Ltd.: Tel:+86-(21)-50791030 / 68712331; Address: Room 203, Block D, No.333 Cailun Road, Zhangjiang High-tech Park, Shanghai 201203,

Wuhan Sunrise Technology Development Limited: Tel:+86-(27)-8331-4682; Address: Floor 5, Wunan Road No.15, Haixia Investment Zone, Wujiashan, Wuhan, Hubei 430014,

Shanghai Zillionaire Chemicals Inc.: Tel:+86-(21)-56837690; Address: Room 601, No.32, 555 Wenxi Road, Shanghai 200435,

Suzhou Industrial Park Yacoo Chemical Reagent Co., Ltd.: Tel:86-512-62956016; Address: Suite 209 A3 Building 218, Xinghu Rd, Suzhou Industrial Park, SuZhou, Jiangsu 215125,

M.C.Biotec Inc.: Tel:+86-(25)-86620042; Address: No.40 Ma Jia Street, Nanjing, Jiangsu 210009,

Neuchem Inc.: Tel:+1-(415)-345-9310; Address: 2062 Union Street, Suite 300, San Francisco, California 94123,

Triveni Chemicals: Tel:+91-(260)-2400022, 3258683; Address: 135, Pancharatna, Char Rasta, G.I.D.C., Vapi, Gujarat 396 195,

hangzhou yongsheng holding co.,ltd: Tel:0086-189。 06726。 683; Address: Xiaoshan,Hangzhou

Kingchem Inc.: Tel:201-261-6002; Address: 5 Pearl Court Allendale Park Allendale, NJ 07401 USA

Dehydroacetic acid cas no:520-45-6

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