C₉H₁₀O₃

Molecular weight : 166.18

Physical and chemical properties: white crystal, taste bitter, burning lin, soluble in alcohol, ether and acetone, almost insoluble in water, boiling point 297-298 ℃.

Product quality standards

Item Standard
Properties White powder
Assay (on a dry basis),% 98-102
Melting point, ° C 115-118
Loss on drying,% ≤ 0.5
Residue on ignition,% ≤ 0.1
Acidity qualified
P-hydroxybenzoic acid and salicylic acid qualified
Solubility soluble in alcohol, ether and acetone, slightly soluble in water

● Global registration recognition, excellent safety, eye, no stimulation to skin, mucous membrane, no allergies
● widely used in a variety of resident and wash-off cosmetics and pharmaceutic