MELTING POINT: 131 °C
BOILING POINT: 270 °C
SOLUBILITY: in water at 20°C
PHYSICAL DESCRIPTION: solid
RODUCT CODE:143332
PRODUCT NAME:Methyl 4-Hydroxybenzoate (USP-NF, BP, Ph. Eur., JP) pure, pharma grade
QUALITY NAME:pure, pharma grade
SPECIFICATIONS:Assay: 99.0-100.5%
Identity according to Pharmacopoeias:: passes test
A 1% , 1 cm, λ 258 nm: 1040-1120
Melting range: 125-128°C
T.L.C.: passes test
Maximum limit of impurities
Appearance and colour of solution: passes test
Acidity: passes test
Insoluble matter in C2H5OH 96%: passes test
Residue on ignition (as SO4): 0.1 %
Residual solvents (Ph.Eur/USP): passes test
Unspecified impurities: 0.5 %
Total impurities: 1.0 %
Impurity A (4-Hidroxibenzoic Acid): 0.5 %
Related substances:
Heavy metals (as Pb): 0.0020 %
