4-Hydroxybenzoic acid 99% USP/BP CAS: 99-76-3 CAS NO.99-76-3

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Methyl p-Hydroxybenzoate

Product Basic Information:

Structure:

Chemical name: 4-Hydroxybenzoic acid, methyl ester
Product name:Methyl 4-hydroxybenzoate
Molecular formula:C₈H₈O₃
Molecular weight:152.15
CAS#:99-76-3
Physical and chemical properties: white crystal. Easily soluble in alcohol, ether and acetone, slightly soluble in water. Boiling point is 270-280℃.

Specification:

Item	Index
	Q/SH008-2014	BP	USP
Appearance	/	Colorless crystal or white crystalline powder	/
Content (dry basis)%	≥99.0	98.0-102.0	98.0-102.0
Melting point℃	125-128	125-128	125-128
Acidity	/	Qualified	Qualified
Sulfate (SO42-) %≤	0.024	/	/
Drying loss %≤	0.50	/	/
Residue on ignition %≤	0.1	0.1	0.1
P-hydroxybenzoic acid and salicylic acid %≤	0.1	/	/
Related substances	/	Qualified	Qualified
Appearance	/	Qualified	Qualified
Identification test	/	Qualified	Qualified

Uses: the product is mainly used as preservative for organic synthesis, drugs, cosmetics, and feeds.
Packing: plastic bag, 1kg/bag, 20 bags/carton, or cardboard drum lined with plastic bag, net weight is 25kg or 50kg.
*Special requirements can be negotiated