4418-26-2

Basic information

• Product Name: Sodium dehydroacetate
• Synonyms: Sodium 1-(3,4-dihydro-6-methyl-2,4-dioxo-2H-pyran-3-ylidene)ethanolate;SODIUM 3-ACETYL-4-HYDROXY-6-METHYL-2-OXO-4(2H)-PYRANOLATE;SODIUM DEHYDROACETATE;2H-Pyran-2,4(3H)-dione,3-acetyl-6-methyl-,ion(1-),sodium;3-(1-hydroxyethylidene)-6-methyl-2h-pyran-2,4(3h)-dione,sodiumsalt[qr];4(3h)-dione,3-acetyl-6-methyl-2h-pyran-sodiumsalt;4(3h)-dione,3-acetyl-6-methyl-2h-pyran-sodiumsalt[qr];4-hexenoicacid,2-acetyl-5-hydroxy-3-oxo,delta-lactone,sodiumderiv.
• CAS NO: 4418-26-2
• Molecular Formula: C8H7NaO4
• Molecular Weight: 190.13
• EINECS: 224-580-1
• Mol File: 4418-26-2.mol
• Article Data: 0

Chemical Properties

• Melting Point: ~295 °C (dec.)
• Boiling Point: 332.6oC at 760 mmHg
• Flash Point: 150.6oC
• Appearance: White to yellow/Powder
• Density: 1.499[at 20℃]
• Vapor Pressure: 0.000144mmHg at 25°C
• Storage Temp.: Store below +30°C.
• Solubility: 330g/l
• PKA: 5.36[at 20 ℃]
• Water Solubility: Soluble in water, propylene glycol and methanol. Insoluble in acetone and benzene.
• Stability: Stable. Incompatible with strong oxidizing agents.
• BRN: 4893653
• CAS DataBase Reference: Sodium dehydroacetate(CAS DataBase Reference)
• NIST Chemistry Reference: Sodium dehydroacetate(4418-26-2)
• EPA Substance Registry System: Sodium dehydroacetate(4418-26-2)

Safety Data

• Hazard Codes: Xn
• Statements: 22
• Safety Statements: 24/25
• WGK Germany: 1
• RTECS: UP8225000
• TSCA: Yes
• Hazardous Substances Data: 4418-26-2(Hazardous Substances Data)

Usage

Description

Sodium dehydroacetate is the sodium salt of dehydroacetate. It is mainly used as a new generation food preservative and food additive, being used extensively in sauce, fruit, bread, cake, moon cake, margarine and beverage. Sodium dehydroacetate (DHA-S) has a wide spectrum of antimicrobial activity that accounts for its use in cosmetic products as a preservative and antimicrobial agent. It is effective in the treatment of both bacteria and fungi. It is also a kind of anticoagulant agent through depleting the blood level of vitamin K.

Chemical Properties

White to yellowish powder

Uses

Different sources of media describe the Uses of 4418-26-2 differently. You can refer to the following data:
1. Dehydroacetic acid sodium salt (DHS-Na) is used in the food industry as preservative for fruits, vegetables, fruit juice, honey, beer, milk, protein and fat products; in human and veterinary medicine as bactericide and fungicide. Product Data Sheet
2. Geogard(R) 111S preservative is based on dehydroacetic acid (DHA), the sodium salt form (NaDHA) and therefore are recognized by major cosmetic, toiletry and fragrance regulatory authorities worldwide for use in cosmetic and personal care products.
3. sodium dehydroacetate is a preservative against bacteria and fungi that is used at concentration levels of 1.0 percent or less. It is useful in combination with parabens. It may cause skin irritation.

General Description

White powder. Used as a fungicide, plasticizer, toothpaste, preservative in food.

Air & Water Reactions

Water soluble.

Reactivity Profile

Sodium dehydroacetate reacts with acids. May react viogrously with strong oxidizing acids.

Flammability and Explosibility

Notclassified

Safety Profile

Poison by intravenous route. Moderately toxic by ingestion. An experimental teratogen. Experimental reproductive effects. An eye irritant. Mutation data reported. When heated to decomposition it emits toxic fumes of Na2O

References

Forester, John. "Preservative solutions containing sodium dehydroacetate with or without sodium borate decahydrate and/or disodium edetate." US, US4248634. 1981. Sakaguchi, Yuka, et al. "Anticoagulant effect of sodium dehydroacetate (DHA-S) in rats." Journal of Applied Toxicology 28.4(2008):524-529. Ye, Yinzhi. "Use of Sodium Dehydroacetate in Food." China Food Additives (2002).

InChI:InChI=1/C8H8O4.Na/c1-4-3-6(10)7(5(2)9)8(11)12-4;/h3,7H,1-2H3;/q;+1