Ingredient Dictionary

HYDROXYECTOIN

5-hydroxyectoine is a carboxamidine heterocycle which is obtained by formal condensation of 4-amino-L-allothreonine with acetic acid.

Definition

5-hydroxyectoine is a carboxamidine heterocycle which is obtained by formal condensation of 4-amino-L-allothreonine with acetic acid. It is a monocarboxylic acid, a carboxamidine, a secondary alcohol and a member of 1,4,5,6-tetrahydropyrimidines. It is a conjugate acid of a 5-hydroxyectoinate. It is a tautomer of a 5-hydroxyectoine zwitterion.

Source: PubChem

US FDA substance register · UNII CIJ7YN252E · registered name HYDROXYECTOIN · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Keeps skin in good condition (CosIng catch-all)SKIN CONDITIONINGMakes skin soft and smoothSKIN CONDITIONING - EMOLLIENTKeeps pH steadyBUFFERING

More data — names, identifiers, properties, test records, literature

Official labels & definitions

JCIA labelling name ヒドロキシエクトイン: 本品は、次の化学式で表される有機化合物である。

Source: JCIA labelling names (Japan)

Names & identifiers

HYDROXYECTOININCI하이드록시엑토인Korean label name (MFDS standard)ヒドロキシエクトインJapanese labelling name

CAS No.chemical registry number: 165542-15-4
EC No.EU chemical inventory number: 442-870-8
DTXSIDUS EPA chemical ID: DTXSID80167963
DTXCIDUS EPA compound ID: DTXCID1090454

IUPAC: (4S,5S)-5-Hydroxy-2-methyl-3,4,5,6-tetrahydropyrimidine-4-carboxylic acid
Molecular formula: C6H10N2O3
Molecular weight: 158.157 g/mol

What products actually use it for

What the 3 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Softener and conditioner2
pH regulating agent1

Source: US EPA CompTox dashboard