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Test Result
Test | Specifications |
---|---|
Description | White to light yellow crystals |
Solubility | Soluble in Methanol |
Moisture content | NMT 0.5% |
1H-NMR | 115 Proton |
Melting Point | 71-76ºC |
Test Result
Test | Specifications |
---|---|
Appearance | Colourless crystals or white crystaline powder |
Solubility | Freely soluble in ethanol (95%), in ether and in methanol. Very slightly soluble in water |
Identification by IR | The Infrared absobrption spectrum of the sample should be concordant with the spectrum of methyl Paraben RS. |
Appearance of Solution | A 10% w/v solution in ethanol (95%) is clear and not more intensely coloured than reference solution BYS6. |
Acidity | NMT 0.1 ml of 0.1M sodium hydroxide is required to change colour of the solution |
Related Substance by HPLC | Impurity A: NMT 0.5% |
Unspecified impurities: NMT 0.5% | |
Total impurities: NMT 1.0% | |
Chlorides | NMT 500 ppm |
Sulphates | No turbidity is produced whithin 10 minutes |
Sulphated ash | NMT 0.1% |
Assay, By HPLC (as C8H8O3) | 98.0% to 102% |
Test Result
Test | Specifications |
---|---|
Description | Off White to Grayish White to Brown Powder |
Solubility | Soluble in Dichloromethane and Methanol |
Water by KF | N.M.T 1.0% |
Melting Range | 60 to 65 C |
Purity By GC | N.L.T 98.00% |