Dehydroacetic acid

Modify Date: 2024-01-02 11:50:16

Dehydroacetic acid structure	Common Name	Dehydroacetic acid
	CAS Number	520-45-6	Molecular Weight	168.147
	Density	1.3±0.1 g/cm3	Boiling Point	332.6±42.0 °C at 760 mmHg
	Molecular Formula	C₈H₈O₄	Melting Point	111-113 °C(lit.)
	MSDS	Chinese USA	Flash Point	150.5±27.9 °C
	Symbol	GHS07	Signal Word	Warning

Use of Dehydroacetic acid

Dehydroacetic acid is an organic compound, classified as a pyrone derivative and is used mostly as a fungicide and bactericide.

Name	Dehydroacetic acid
Synonym	More Synonyms

Description	Dehydroacetic acid is an organic compound, classified as a pyrone derivative and is used mostly as a fungicide and bactericide.
Related Catalog	Signaling Pathways >> Anti-infection >> Bacterial Signaling Pathways >> Anti-infection >> Fungal Research Areas >> Infection

Density	1.3±0.1 g/cm3
Boiling Point	332.6±42.0 °C at 760 mmHg
Melting Point	111-113 °C(lit.)
Molecular Formula	C₈H₈O₄
Molecular Weight	168.147
Flash Point	150.5±27.9 °C
Exact Mass	168.042252
PSA	60.44000
LogP	0.35
Vapour Pressure	0.0±0.7 mmHg at 25°C
Index of Refraction	1.490
Stability	Stable. Incompatible with oxidizing agents, bases, reducing agents.

Dehydroacetic acid MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UP8050000

CHEMICAL NAME :: 2H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-

CAS REGISTRY NUMBER :: 520-45-6

BEILSTEIN REFERENCE NO. :: 0006129

LAST UPDATED :: 199710

DATA ITEMS CITED :: 14

MOLECULAR FORMULA :: C8-H8-O4

MOLECULAR WEIGHT :: 168.16

WISWESSER LINE NOTATION :: T6OV DV CHJ CV1 F1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: WRPCA2 World Review of Pest Control. (London, UK) V.1-10, 1962-71. Discontinued. Volume(issue)/page/year: 9,119,1970

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1330 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SKEZAP Shokuhin Eiseigaku Zasshi. Food Hygiene Journal. (Nippon Shokuhin Eisei Gakkai c/o Shokuhin Eisei Senta, 2-6-1 Jingumae, Shibuya-ku, Tokyo 150, Japan) V.1- 1960- Volume(issue)/page/year: 12,520,1971

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1186 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 99,98,1950

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JACTDZ Journal of the American College of Toxicology. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1-12, 1982-1993. Discontinued. Volume(issue)/page/year: 4(3),123,1985 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2100 mg/kg/11D-I

TOXIC EFFECTS :: Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 99,57,1950

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 36400 mg/kg/2Y-C

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - chronic pulmonary edema Liver - changes in liver weight Nutritional and Gross Metabolic - other changes

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 99,57,1950

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Primate - monkey

DOSE/DURATION :: 3300 mg/kg/18D-I

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 99,57,1950 ** TUMORIGENIC DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 592 mg/kg/37W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Tumorigenic - tumors at site of application

REFERENCE :: BJCAAI British Journal of Cancer. (Macmillan Press Ltd., Houndmills, Basingstoke, Hants. RG21 2XS, UK) V.1- 1947- Volume(issue)/page/year: 20,134,1966 *** REVIEWS *** TOXICOLOGY REVIEW JACTDZ Journal of the American College of Toxicology. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1-12, 1982-1993. Discontinued. Volume(issue)/page/year: 4(3),123,1985 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - A1243 No. of Facilities: 28 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 1288 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - A1243 No. of Facilities: 83 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 925 (estimated) No. of Female Employees: 679 (estimated)

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H302
Precautionary Statements	P301 + P312 + P330
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Faceshields;Gloves
Hazard Codes	Xn:Harmful;
Risk Phrases	R22
Safety Phrases	S22
RIDADR	NONH for all modes of transport
WGK Germany	1
RTECS	UP8050000
Packaging Group	II; III
Hazard Class	4.1
HS Code	29322980

Precursor 9
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DownStream 10
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HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Effects of preservatives on Alicyclobacillus acidoterrestris growth and guaiacol production.

Int. J. Food Microbiol. 214 , 145-50, (2015)

Alicyclobacillus acidoterrestris can survive the pasteurization process, multiply in pasteurized juices and produce guaiacol which causes medicinal or antiseptic off-flavors. Chemical preservatives ha...

[Analysis of preservatives used in cosmetic products: salicylic acid, sodium benzoate, sodium dehydroacetate, potassium sorbate, phenoxyethanol, and parabens].

Kokuritsu Iyakuhin Shokuhin Eisei Kenkyusho. Hokoku. (128) , 85-90, (2010)

Preservatives are used to inhibit the growth of microorganisms in cosmetic products. The Japanese standards for cosmetics set restrictions on the maximum amount of each preservative added to cosmetics...

Simultaneous determination of eleven preservatives in cosmetics by micellar electrokinetic chromatography.

J. AOAC Int. 95(4) , 1069-73, (2012)

A new method for the simultaneous quantitation of 11 preservatives-imidazolidinyl urea, benzyl alcohol, dehydroacetic acid, sorbic acid, phenoxyethanol, benzoic acid, salicylic acid, and four parabens...

DEHYDRACETSAEURE

DEHYDRACETIC ACID

dehydro-aceticaci

EINECS 212-227-4

2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid δ-lactone

Geogard(R) 361

Geogard(R) 221

dhaa

3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione

2H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-

Geogard(R) 111A

Dehydroacetic Acid

MFCD00066709

3-acetyl-6-methyl-(2H)-pyran-2,4(3H)dione

DEHYDRANONE

DHA

Methylacetopyronone

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Dehydroacetic acid
Price: ￥318.0/500g ￥98.0/100g
Purity: 99.0%
Stocking Period: Inquiry
Contact: Liu jia

DC Chemicals Limited
China
Product Name: Dehydroacetic Acid
Price: $Inquiry/100mg $Inquiry/250mg $Inquiry/500mg
Purity: 98.0%
Stocking Period: 3 Day
Contact: Tony Cao

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Dehydroacetic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

Zhejiang Hangyu API Co., Ltd
China
Product Name: Dehydroacetic acid
Price: ￥Inquiry/1kg
Purity: 99.5%
Stocking Period: Inquiry
Contact: Vinnie

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Dehydroacetic Acid
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson

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Price: ￥117/25g

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Dehydroacetic acid

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