Dehydracetsäure

Dehydracetsäure Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R22:Gesundheitsschädlich beim Verschlucken.

S-Sätze Betriebsanweisung:

S22:Staub nicht einatmen.

Chemische Eigenschaften

Dehydroacetic acid is a white to cream-coloured powder that is only very slightly soluble in water (less than 0.1 %). However, the sodium salt hydrate (CSH7Na04.H20) has a solubility of 33% in water at 25°C, and 48% in propylene glycol. The acid is 22% soluble in acetone, 18% in benzene, and I g dissolves in about 35 ml of ethanol.It is used to reduce pickle bloating, and as a pesticide and preservative for squash and strawberries. Its permissible use level is 65ppm.
Dehydroacetic acid is one of the food additives found in red wine and was determined by ultra-fast liquid chromatography-tandem quadrupole mass spectrometry (UFLC-MS/MS).
To assay dehydroacetic acid, add 500 mg to a 250-ml Erlenmeyer flask and dissolve in 75 ml of neutral alcohol. Following the addition of phenolphthalein T.S., titrate with 0.1 N NaOH to a pink end-point that persists for at least 30 s. Each ml of 0.1 N NaOH = 16.82 mg of dehydroacetic acid (National Academy of Sciences, 1963).
Dehydroacetic acid is a synthetic chemical (no plant-based preservatives that meet our efficacy standards currently exist) that is considered to be a low hazard for human health and for the environment.

Verwenden

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

Allgemeine Beschreibung

Dehydroacetic acid is a pyrone derivative, that is typically synthesized by the base-catalyzed dimerization of diketene. It is used as a preservative in pharmaceutical, food and cosmetic products.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Sicherheitsprofil

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.

Dehydracetsäure Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte

Dehydracetsäure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Firmenname	Telefon	E-Mail	Land	Produktkatalog	Edge Rate
Hefei TNJ Chemical Industry Co.,Ltd.	0551-65418671	sales@tnjchem.com	China	34572	58
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12470	58
airuikechemical co., ltd.	+undefined86-15315557071	sales05@airuikechemical.com	China	994	58
Ouhuang Engineering Materials (Hubei) Co., Ltd	+8617702722807	admin@hbouhuang.com	China	3001	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	+8613343047651	admin@zlchemi.com	China	2196	58
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29797	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	15956	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21689	55
Hangzhou FandaChem Co.,Ltd.	008657128800458; +8615858145714	fandachem@gmail.com	China	9341	55
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418679 +86-18949832763	info@tnjchem.com	China	2989	55

520-45-6(Dehydracetsäure)Verwandte Suche:

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• 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) 361
• Dehydroacetic acid ,98%
• Acetylmethylpyrandion
• Acetylmethylpyronone
• Dehydroacetoic acid
• 3-Aceto-6-methyl-2-pyronone
• Dehydroacetic Acid (200 mg)
• Dehydroacetic acid, 98% 100GR
• Dehydroacetic acid, 98% 5GR
• -Acetyl-6-methyl-pyran-2,4-dione
• Dehydroacetic acid >=98.0% (T)
• dehydro-aceticaci
• -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
• 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-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-
• 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-)
• DEHYDRACETIC ACID
• DEHYDRANONE
• DEHYDROACETIC ACID
• LABOTEST-BB LT00053173
• DA,Dehydroacetic
• Biocide 470F
• Dehydroacetic Acid >