Dehydroacetic acid

Product Name: Dehydroacetic acid
CAS No.: 520-45-6
Chemical Name: Dehydroacetic acid
Synonyms: DHA;dhaa;DEHYDRANONE;Biocide 470F;Geogard(R) 221;Geogard(R) 361;Geogard(R) 111A;DA,Dehydroacetic;DEHYDRACETSAEURE;dehydro-aceticaci
CBNumber: CB0139753
Molecular Formula: C8H8O4
Formula Weight: 168.15
MOL File: 520-45-6.mol

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Dehydroacetic acid Property

Melting point:: 111-113 °C(lit.)
Boiling point:: 270 °C(lit.)
Density: 1.1816 (rough estimate)
vapor pressure: 0.001 hPa (20 °C)
refractive index: 1.4611 (estimate)
Flash point:: 157°C
storage temp.: 0-6°C
solubility: 2g/l
pka: 5.53±0.40(Predicted)
form: Fine Crystalline Powder
color: Light yellow or cream
PH: 4 (2g/l, H2O, 20℃)
Merck: 14,2865
BRN: 6129
Stability:: Stable. Incompatible with oxidizing agents, bases, reducing agents.
InChIKey: PGRHXDWITVMQBC-UHFFFAOYSA-N
CAS DataBase Reference: 520-45-6(CAS DataBase Reference)
NIST Chemistry Reference: Dehydroacetic Acid(520-45-6)
EPA Substance Registry System: 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione (520-45-6)

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Safety

Hazard Codes: Xn
Risk Statements: 22
Safety Statements: 22-26
WGK Germany: 1
RTECS: UP8050000
Autoignition Temperature: 336 °C
TSCA: Yes
HS Code: 29322980
Hazardous Substances Data: 520-45-6(Hazardous Substances Data)
Toxicity: LD50 orally in rats: 1000 mg/kg (Spencer)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P330Rinse mouth.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 30740
Product name: Dehydroacetic acid
Purity: ≥98.0% (T)
Packaging: 100g
Price: $38.3
Updated: 2020/08/18

Sigma-Aldrich

Product number: 1166309
Product name: Dehydroacetic acid
Purity: United States Pharmacopeia (USP) Reference Standard
Packaging: 200mg
Price: $399
Updated: 2020/08/18

TCI Chemical

Product number: D0039
Product name: Dehydroacetic Acid
Purity: >98.0%(GC)(T)
Packaging: 25g
Price: $20
Updated: 2020/06/24

TCI Chemical

Product number: D0039
Product name: Dehydroacetic Acid
Purity: >98.0%(GC)(T)
Packaging: 500g
Price: $75
Updated: 2020/06/24

Alfa Aesar

Product number: A17827
Product name: Dehydroacetic acid, 98%
Packaging: 50g
Price: $20.8
Updated: 2020/06/24

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Dehydroacetic acid Chemical Properties,Usage,Production

Chemical Properties

white to light yellow crystal powder

Uses

Dehydroacetic acid (DHS) is used as stabilizer for cosmetic and pharmaceutical products due to its fungicide and bactericide activity, as additive for PVC-stabilizers and for the syntheses of veterinary medicines. Product Data Sheet

Uses

Geogard(R) 111a preservative is based on dehydroacetic acid (DHA) and therefore are recognized by major cosmetic, toiletry and fragrance regulatory authorities worldwide for use in cosmetic and personal care products.

Uses

Geogard(R) 221 preservative is based on dehydroacetic acid (DHA) and benzyl alcohol, and therefore is recognized by major cosmetic, toiletry and fragrance regulatory authorities worldwide for use in cosmetic and personal care products.

Uses

Geogard(R) 361 preservative is based on six synergistic components, all with wide global regulatory acceptance: dehydroacetic acid (DHA); salicylic acid; benzoic acid; phenoxyethanol; benzyl alcohol; and benzethonium chloride.

Uses

antifungal, antibacterial

Uses

dehydroacetic acid is a preservative with low sensitizing potential. This is a weak acid used as a fungi-and bacteria-destroying agent in cosmetics. The presence of organic matter decreases its effective ness. It is not irritating or allergy causing when applied on the skin.

Uses

Dehydroacetic Acid (DHA) is a preservative that is a crystalline powder with a solubility of less than 0.1 g in 100 g of water at 25°C. It can undergo a variety of chemical reactions which give it utility in many applications. It is used at 0.01–0.5% for microbiological growth inhibition in various foods. It is used for cut or peeled squash, with no more than 65 ppm remaining in or on the prepared squash.

Synthesis Reference(s)

The Journal of Organic Chemistry, 49, p. 5105, 1984 DOI: 10.1021/jo00200a018

Safety Profile

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.

Dehydroacetic acid Preparation Products And Raw materials

Raw materials

Ethyl acetoacetate Acetyl ketene Fatty acid ethyl ester Polymerization inhibitor Toluene Sodium hydroxide-ethanol solution FISH OIL Triethylamine Sodium ethoxide Benzene Hydrochloric acid Sodium hydroxide Triethylenediamine

Preparation Products

Sodium dehydroacetate Clopidol

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Dehydroacetic acid Suppliers

Belgium 1 China 200 Europe 1 Germany 7 India 2 Japan 6 Slovakia 1 South Korea 1 Switzerland 2 The Netherlands 2 Ukraine 1 United Kingdom 8 United States 36 Global 268

Wuhan yuqing jiaheng pharmaceutical co. LTD

Tel: 027-83855389-
Fax: 027-83855389
Email: 2586905842@qq.com
Country: China
ProdList: 2241
Advantage: 58

J & K SCIENTIFIC LTD.

Tel: 010-82848833- ;010-82848833-
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com;market6@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 21-61259100-
Fax: 86-21-61259102
Email: sh@meryer.com
Country: China
ProdList: 40268
Advantage: 62

3B Pharmachem (Wuhan) International Co.,Ltd.

Tel: 821-50328103-801
Fax: 86-21-50328109
Email: 3bsc@sina.com
Country: China
ProdList: 15880
Advantage: 69

Alfa Aesar

Tel: 400-610-6006; 021-67582000
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30163
Advantage: 84

TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386 / 800-988-0390
Fax: 021-67121385
Email: Sales-CN@TCIchemicals.com
Country: China
ProdList: 24555
Advantage: 81

Beijing dtftchem Technology Co., Ltd.

Tel: 13651141086; 86(10)60275028、60275820
Fax: 86 (10) 60270825
Email: dtftchem@sina.com
Country: China
ProdList: 3393
Advantage: 62

BeiJing Hwrk Chemicals Limted

Tel: 0757-86311057-
Fax: 0757-86311057
Email: kennyrong@hwrkchemical.com
Country: China
ProdList: 17296
Advantage: 55

Energy Chemical

Tel: 021-58432009
Fax: 021-58436166-800
Email: sales8178@energy-chemical.com
Country: China
ProdList: 44026
Advantage: 61

Capot Chemical Co., Ltd

Tel: +86 (0) 571 85 58 67 18
Fax: 0086-571-85864795
Email: sales@capotchem.com
Country: China
ProdList: 18228
Advantage: 66

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View Lastest Price from Dehydroacetic acid manufacturers

Anhui Rencheng Technology Co., Ltd

Product: Dehydroacetic acid 520-45-6
Price: US $1.00-499.00/KG
Min. Order: 0.5KG
Purity: >99%
Supply Ability: 20tons
Release date: 2020-12-31

Hebei Chisure Biotechnology Co.LTD

Product: Dehydroacetic acid 520-45-6
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 500tons/month
Release date: 2019-05-06

qingdao trust agri chemical co.,ltd

Product: Dehydroacetic acid 520-45-6
Price: US $3.00/Kg/Drum
Min. Order: 1KG
Purity: 99%
Supply Ability: 20tons per month
Release date: 2020-12-17

520-45-6, Dehydroacetic acidRelated Search:

Sodium diacetate Benzoic acid Ethylene carbonate Phenyl salicylate Ethyl acetate Acetyl-resveratrol Kresoxim-methyl Methyl Ascoric Acid Parathion-methyl Chloroacetic acid Tetrahydro-4H-pyran-4-one Folic acid CHLOROPHOSPHONAZO III Acetyl coenzyme A sodium salt Peroxyacetic acid Centchroman Phenylacetic acid

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

3-acetyl-6-methyl-2h-pyran-2,4(3h)-dione.enolform

3-acetyl-6-methyl-2h-pyran-2,4(3h)-dioneenolform

3-acetyl-6-methyl-2h-pyran-4(3h)-dione

3-Acetyl-6-Methyldihydropyrandione-2,4

3-Acetyl-6-methylpyrandione-2,4

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

4-Hexenoic acid, 2-acetyl-5-hydroxy-3-oxo-, delta-lactone

4-hexenoicacid,2-acetyl-5-hydroxy-3-oxo,lactone

Geogard(R) 111A

Benzyl alcohol (and) dehydroacetic acid

Geogard(R) 221

Geogard(R) 361

Dehydroacetic acid ,98%

Acetylmethylpyrandion

Acetylmethylpyronone

Dehydroacetoic acid

3-Aceto-6-methyl-2-pyronone

DHA

Dehydroacetic Acid (200 mg)

Dehydroacetic acid, 98% 100GR

Dehydroacetic acid, 98% 5GR

-Acetyl-6-methyl-pyran-2,4-dione

Dehydroacetic acid >=98.0% (T)

DA,Dehydroacetic

dehydro-aceticaci

dhaa

-Hexenoic acid, 2-acetyl-5-hydroxy-3-oxo-, d-lactone

Kyselina dehydroacetova

kyselinadehydroacetova

Methylacetopyronone

3-Acetyl-6-methyl-2-pyranone

Dehydroactic acid(DHA)

3-Acetyl-6-methyl-pyran-2,4-dione

DEHYDROACETIC ACID FREE ACID CRYSTALLINE

PYRAN-2,4-DIONE,3-ACETYL-6-METHYL

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

DEHYDRACETSAEURE

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

2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid δ-lactone, 3-Acetyl-4-hydroxy-6-methyl-2-pyrone

Biocide 470F

3-ACETYL-3,4-DIHYDRO-6-METHYL-2H-PYRAN-2,4-DIONE

3-ACETYL-4-HYDROXY-6-METHYL-2H-PYRAN-2-ONE

3-ACETYL-4-HYDROXY-6-METHYL-2-PYRONE

3-ACETYL-6-METHYL-2H-PYRAN-2,4(3H)-DIONE

3-ACETYL-6-METHYL-2H-PYRONE-2,4-(3H)-DIONE

2-ACETYL-5-HYDROXY-3-OXO-4-HEXENOIC ACID DELTA-LACTONE

2-ACETYL-5-HYDROXY-3-OXO-4-HEXENOIC ACID D-LACTONE

2-ACETYL-5-HYDROXY-3-OXO-4-HEXENOIC ACID GAMMA-LACTONE

2-acetyl-5-hydroxy-3-oxo-4-hexenoicacidelta-lactone

2-Acetyl-5-hydroxy-3-oxo-4-hexenoicacid-lactone

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

2H-Pyran-2-one, 3-acetyl-4-hydroxy-6-methyl-

3-acetyl-4-hydroxy-6-methyl-2h-pyran-2-on

3-Acetyl-4-hydroxy-6-methyl-2-pyrone cyclic ketone

3-Acetyl-6-methyl-2,3-dihydropyran-2,4-dione

3-Acetyl-6-methyl-2,4-pyrandione

3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione, ion(1-)