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Dehydroacetic acid

Product Name
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;DA,Dehydroacetic;dehydro-aceticaci;DEHYDRACETIC ACID
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
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)
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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
$36.6
Updated
2018/11/13
Sigma-Aldrich
Product number
1166309
Product name
Dehydroacetic acid
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
200mg
Price
$386
Updated
2018/11/13
TCI Chemical
Product number
D0039
Product name
Dehydroacetic Acid
Purity
>98.0%(GC)(T)
Packaging
25g
Price
$21
Updated
2018/11/22
TCI Chemical
Product number
D0039
Product name
Dehydroacetic Acid
Purity
>98.0%(GC)(T)
Packaging
500g
Price
$81
Updated
2018/11/22
Alfa Aesar
Product number
A17827
Product name
Dehydroacetic acid, 98%
Packaging
50g
Price
$20.2
Updated
2018/11/13
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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.

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.

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Dehydroacetic acid Suppliers

Shanghai YuLue Chemical Co., Ltd.
Tel
021-13671753212 13917602471 021-60345187
Fax
021-34702061
Email
lzz841106@aliyun.com
Country
China
ProdList
10099
Advantage
55
Hubei Zhonglong Kangsheng Fine Chemical Co., Ltd.
Tel
13545340383 ; 027-83855389
Fax
027-83855389
Email
2586905842@qq.com
Country
China
ProdList
813
Advantage
58
J & K SCIENTIFIC LTD.
Tel
400-666-7788 +86-10-82848833
Fax
86-10-82849933
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Country
China
ProdList
96506
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
Fax
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing)
Email
sh@meryer.com
Country
China
ProdList
40269
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
86-21-50328103 * 801、802、803、804 Mobile:18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15881
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
4006990298;010-57411839;0757-86311057;021-51691807
Fax
010-87653215;0757-86311057;021-55236763
Email
sales@hwrkchemical.com
Country
China
ProdList
14684
Advantage
55
Energy Chemical
Tel
021-58432009 / 400-005-6266
Fax
021-58436166-800
Email
info@energy-chemical.com
Country
China
ProdList
44025
Advantage
61
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View Lastest Price from Dehydroacetic acid manufacturers

career henan chemical co
Product
Dehydroacetic acid 520-45-6
Price
US $100.00-100.00/KG
Min. Order
25KG
Purity
99.7%
Supply Ability
20T
Release date
2018-07-31
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

520-45-6, Dehydroacetic acidRelated Search:


  • dehydro-aceticaci
  • dhaa
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  • Kyselina dehydroacetova
  • kyselinadehydroacetova
  • Methylacetopyronone
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  • 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
  • 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
  • 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
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  • Dehydroacetic acid, 98% 100GR
  • Dehydroacetic acid, 98% 5GR
  • Dehydroacetic acid >=98.0% (T)
  • DA,Dehydroacetic
  • 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
  • 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