Methyl 4-hydroxybenzoate is also called methylparaben. This paraben is a white crystalline powder or colorless crystals. It is freely soluble in alcohol, ether, acetone, and very slightly soluble in water. Methyl 4-hydroxybenzoate boiling point is 270-280 deg. C.
|Assay (on a dry basis)||99.0-100.5%|
|Melting Point||125-128 deg. C|
|Residue on Ignition||0.1% Max.|
|Sulphated Ash||0.05% Max.|
|Appearance of Solution||passed|
|Heavy Metal (Pb)||10ppm Max.|
|Residual Solvents||3000ppm Max.|
|Loss on Drying||0.5%|
Methyl 4-hydroxybenzoate is mainly used as antiseptics in foodstuff, medicine, and cosmetics. Methyl 4-hydroxybenzoate can also be used in feed as antiseptics. Because of its phenolic hydroxyl structure, methyl 4-hydroxybenzoate has stronger antibacterial properties than benzoic acid and sorbic acid.
Packed with cardboard drum (Φ36×46.5cm) of 25 kg net each, double PE inner bag inside.
Methyl 4-hydroxybenzoate danger is mainly in the production process. Workers’ exposure to raw powder will cause obvious irritation to the skin and eyes. Methyl 4-hydroxybenzoate side effects are mainly in cosmetics. Excessive use of parabens can cause skin allergy.
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