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Dehydroacetic acid

CAS No. 520-45-6
Chemical Name: Dehydroacetic acid
Synonyms: DHA;dhaa;DEHYDRANONE;Geogard(R) 221;Geogard(R) 361;Geogard(R) 111A;DEHYDRACETSAEURE;DEHYDRACETIC ACID;dehydro-aceticaci;DEHYDROACETIC ACID
CBNumber: CB0139753
Molecular Formula: C8H8O4
Formula Weight: 168.15
MOL File: 520-45-6.mol
Dehydroacetic acid Property
Melting point : 111-113 °C(lit.)
Boiling point : 270 °C(lit.)
Fp : 157°C
storage temp. : 0-6°C
solubility : 2g/l
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.
CAS DataBase Reference: 520-45-6(CAS DataBase Reference)
NIST Chemistry Reference: Dehydroacetic Acid(520-45-6)
EPA Substance Registry System: 2H-Pyran-2,4(3H)- dione, 3-acetyl-6-methyl-(520-45-6)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes : Xn
Risk Statements : 22
Safety Statements : 22-26
WGK Germany : 1
RTECS : UP8050000
TSCA : Yes
HS Code : 29322980
Hazardous Substances Data: 520-45-6(Hazardous Substances Data)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P330 Rinse mouth.
P501 Dispose of contents/container to..…

Dehydroacetic acid Chemical Properties,Usage,Production

Chemical Properties
white to light yellow crystal powder
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
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.
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.
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.
antifungal, antibacterial
Dehydroacetic acid Preparation Products And Raw materials
Raw materials
Ethyl acetoacetate Acetyl ketene Polymerization inhibitor Toluene FISH OIL Triethylamine Sodium ethoxide Benzene Hydrochloric acid Sodium hydroxide Triethylenediamine
Preparation Products
Sodium dehydroacetate Clopidol
Dehydroacetic acid Suppliers      Global( 166)Suppliers     
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd. +86 (0)571-855 867 18
+86 (0)571-858 647 95 China 19953 60
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96831 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40403 62
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
86-21-50328109 China 15950 69
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 China 30314 84
TCI (Shanghai) Development Co., Ltd. 800-988-0390
021-67121385 China 22833 81
Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、60275820
86 (10) 60270825 China 3437 62
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 China 44197 61
Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18
0086-571-85864795 China 18279 66
Beijing Ouhe Technology Co., Ltd +86-10-4006331231;+86-10-51280831;+86-10-82967028
+86-10-82967029 China 10816 60
520-45-6(Dehydroacetic acid)Related Search:
Sodium diacetate Benzoic acid Ethyl acetate Acetyl-resveratrol Kresoxim-methyl Methyl ASCORBICACID Parathion-methyl Chloroacetic acid Tetrahydro-4H-pyran-4-one Folic acid CHLOROPHOSPHONAZO III Acetyl coenzyme A sodium salt Peroxyacetic acid Centchroman Phenylacetic acid Bensulfuron methyl Trichloroacetic acid
DEHYDRACETIC ACID DEHYDRANONE DEHYDROACETIC ACID LABOTEST-BB LT00053173 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 520-45-6 Building Blocks Carbonyl Compounds Carboxylic Acids C8 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-) 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 -Acetyl-6-methyl-pyran-2,4-dione dehydro-aceticaci dhaa -Hexenoic acid, 2-acetyl-5-hydroxy-3-oxo-, d-lactone Kyselina dehydroacetova kyselinadehydroacetova Methylacetopyronone Organic Building Blocks 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 520-43-0 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 Dehydroacetic acid and derivatives Diketene Derivatives Geogard(R) 111A Benzyl alcohol (and) dehydroacetic acid Geogard(R) 221
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