KOJIC ACID
1£® Name£¬Composition and formula
chemical name:
2-hydroxymethyl-5-hydroxide-¦Ã-pyronone
5-hydroxide-2-hydroxymethyl-1,4pyronone
4H-pyran-4-one5-hydroxy2-hydroxy methyl.
American CHEMISTRY DIGEST(CA Registrtion No:501-30-4),Chemical material index with scientific name:
4H-pyran-4-one5-hydroxy2-hydroxy methyl
Chemical structure: CH²OH
C=CH
O C=O
CH=C
CH
C6H6O4
142.1
Molecule Weight:142.1
2.Specification Data Sheet£º
items specifications
appearance slightly yellowish crystalline powdar
content 98%max
melting point 151℃-155℃
residue on ignition 0.1%max
lost on drying 0.5%max
heavy metals 0.002%max
arsenic 0.0002%max
chloride 0.02%max
lron 0.001%max
clarity of solution colorless and tran***rent
3.Characters:
Ability of inhibiting tyrosinase; Ability of inhibiting bacteria; character of inhibiting oxidation; chelating with metal ion
4. Application
As additive of foodstuff preservation;
Vegetable and fruits fresh keep function
Used as whitening agent in cosmetic
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