C8H8O4
168.15 g/mol
Food AdditiveWarning
DEHYDROACETIC ACID
CAS520-45-6
Category
Food Additive
Compound Class
Heterocycle
Primary Use
fungicide and preservative
Dehydroacetic acid is an organic compound used as a fungicide and preservative. It appears as an odorless, colorless to white crystalline powder that is almost insoluble in water and moderately soluble in most organic solvents.
fungicidepreservative
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Diarginine oxoglurate
CAS5256-76-8
dietary supplement ingredient
ReferenceSame Category
Tartaric acid
CAS526-83-0
acidulant and flavoring agent
ReferenceSame Category
D-gluconic acid
CAS526-95-4
food additive and acidity regulator
ReferenceSame Category
Sodium D-gluconate
CAS527-07-1
Food additive and chelating agent
Safety Reference
Warning
H302Harmful if swallowed
Customs Tariff Classification
The international HS code for DEHYDROACETIC ACID (CAS 520-45-6) is 2932.20.
HS code (international, 6-digit)
2932.20
EU CN code (8-digit)
2932 20 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
3-acetyl-6-methylpyran-2,4-dione
InChIKey
PGRHXDWITVMQBC-UHFFFAOYSA-N
SMILES
CC1=CC(=O)C(C(=O)O1)C(=O)C
Synonyms (26)
- Dehydroacetic acid, United States Pharmacopeia (USP)
- Acetic acid, dehydro-
- Biocide 470F
- DEHYDROACETIC ACID
- Dehydroacetic acid (Standard)
- Methylacetopyronone
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