Methyl Parabene
EP, USP (Tested for Endotoxin & Microbes)
CAS #:
99-76-3
Molecular Formula:
C8H8O3
Synonym:
Methyl p-hydroxybenzoate,Methyl 4-Hydroxybenzoate, Methyl Hydroxybenzoate
Molecular Weight:
152.15 g/mol
Overview
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
