CASR |
: | 98-11-3 |
Molecular Formula |
: | C6H5SO3H |
Molecular Weight |
: | 158.18 |
| Specifications | |
|---|---|
| Description: | White to off - white crystals/powder with lumps. |
| Solubility: | Soluble in water & alcohol. |
| Identification by IR: | IR spectra of the sample should be concomitant with IR spectra of the standard. |
| Chloride (Cl): | NMT 0.05% |
| Moisture: | NMT 1.0% |
| Assay: | NLT 98.0% (Anhyrous basis) |
| Related substances: Any unknown impurity: | NMT 0.10% |
| Related substances: Total impurity: | NMT 2.0% |
| Benzene: | NMT 2 ppm |
| Clarity and colour of solution: | The solution is clear and colourless, any colour produced is not more intense than reference solution B7 (EP reference solution). |
| Residue on ignition: | NMT 0.1% |
| Iron (Fe): | NMT 0.002% |
| Arsenic (As): | NMT 0.15ppm |
| Lead (Pb): | NMT 0.5ppm |
| Mercury(Hg): | NMT 0.15ppm |
| Cadmium(Cd): | NMT 0.2 ppm |
| Total aerobic microbial count: | NMT 100 CFU/gm |
| Total combined yeast and molds count: | NMT 10 CFU/gm |
| E.coli: | should be absent/gm |
| Staphylococcus aureus: | should be absent/gm |
| Pseud. aeruginosa: | should be absent/gm |
| Bile-tolerant gram negative bacteria: | should be absent/gm |
| Bacterial endotoxins: | NMT 2.5 EU/mg |
| Cyclohexane as residual solvent: | NMT 2000 ppm |
| Methyl benzene Sulfonate: | NMT 134.8 ppm |
