Methyl Paraben IP / BP / USP
| Chemical Name | Methyl Paraben |
| IUPAC Name | Methyl 4-Hydroxybenzoate |
| Molecular Formula | C8H8O3 |
| Molecular Weight | 152.1 |
| CAS Number | 99-76-3 |
Technical Data Sheet
| Sr. NO. | Parameter | Specification | Method |
| 1 | Description | White or almost white crystalline powder or colorless crystals | By Visual Inspection |
| 2 | Solubility | Free soluble in ethanol (95 %). In either and in menthol; very slightly soluble in water | By Solubility Test |
| 3 | Identification | A)By Melting Pont: 125°C to 128°C B) IR absorption spectrophotometry : Comply C) TLC Chromatogram Spot : to Comply |
By Melting Point Apparatus By IR By TLC |
| 4 | Appearance of Solution | Solution should be clear & not more intensely coloured than BYS6 solution | By Visual Inspection |
| 5 | Acidity | NMT 0.1 ml of 0.1 N NaOH Required to change the color of the indicator to blue | By Chemical Analysis |
| 6 | Related Substances 1) Impurity A 2) Unspecified impurities 3) Total Impurities |
NMT 0.5 % NMT 0.5 % NMT 1.0 |
By HPLC |
| 7 | Sulphated Ash | NMT 0.1 % | By Chemical Analysis |
| 8 | Assay By HPLC | 98.0 % to 102.0 % | By HPLC |
Note:
- Standard Packing Available in 20/25 Kg Fiber Drums.
- Self-life: 5 Years from mfg. date
- Storage: Store Protected from light.
- Application: use as a preservative in food, cosmetics, and pharmaceuticals to increase shelf life and avoid bacterial and fungal growth.