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:
Pack Sizes: 0.5 Kg