P-Hydroxybenzoic Acid Methyl Ester Methylparaben CAS No 99-76-3

• CAS No.: 99-76-3
• Formula: C8h8o3
• EINECS: 202-785-7
• Source: Organic Acids
• Appearance: Powder
• Grade Standard: Medicine Grade
• Model NO.: SAMREAL-0315
• Colour: White
• Standard: USP
• Transport Package: Drum
• Specification: 25kg/drum
• Trademark: samreal
• Origin: China

Product Description

Methylparaben cas no 99-76-3

Item	Specification	Test Results
Appearance	White powder	Passed
Purity (on dry base ) %	98.0-102.0	99.2
Melting Point ºC	125-128	127.3
Acid	Not more than 0.1 ml of 0.1 N sodium hydroxide is required to produce a blue color	Passed
Identification	A. Infrared absorption Spectrophotometry B. Thin-Layer Chromatographic	Passed
Residue %	≤0.1	0.05
Loss on drying %	≤0.5	0.3
Heavy Metal ( Pb)	≤10ppm	Passed
Residual solvents (Methanol)	<3000PPM	Passed
Related Substances	P-Hydroxybenzoic acid: ≤0.5% Unspecified impurities: ≤0.5% Total impurities: ≤1.0%	Passed
Color of solution	100mg/ml in alcohol,The solution is clear.	Passed

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