Methyl Parabene

EP, USP (Tested for Endotoxin & Microbes)

CAS #:


Molecular Formula:



Methyl p-hydroxybenzoate,Methyl 4-Hydroxybenzoate, Methyl Hydroxybenzoate

Molecular Weight:

152.15 g/mol


Methylparaben, NF is an excipient used as a preservative. It is a paraben and used as an anti-fungal agent in personal care products and cosmetics.

Characters Unit Specification
Appearance white or almost white, crystalline powder or colourless crystals
Assay % 98.0 – 102.0
Identification A (IR) complies
Identification B (Melting point) °C 125 - 128
Residue on Ignition/Sulphated ash % max. 0.1
Appearance of solution complies
Colour of solution (USP) complies
Acidity ml of 0.1M NaOH max. 0.1
Related substances
Impurity A % max. 0.5
Unspecified impurities % max. 0.5
Total % max. 1.0
Total aerobic microbial count cfu/g max. 100
Total yeasts and moulds count cfu/g max. 50
E.coli cfu/g absent in 1g
Pseudomonas aeruginosa cfu/g absent in 1g
Staphylococcus aureus cfu/g absent in 1g
Salmonella cfu/g absent in 25g
Residual Solvents (Ph. Eur., USP) According to requirements

Shelf Life/Retest Date: Methyl Paraben can be kept for at least 4 years if stored under recommended conditions.

Storage/Shipping Conditions:

  • Keep container tightly closed in a dry and well-ventilated place.
  • Store at room temperature in the original container.
  • Store away from incompatible materials.

Pack Sizes: 0.5 Kg

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