| 1 | Appearance/Description | White crystalline powder. | White crystalline powder or colorless crystals or scales, or needles | USP/Ph.Eur |
| 2 | Solubility | Complies | Slightly soluble in water, soluble in boiling water, freely soluble in ethanol (96%) chloroform, ether and in fatty oils. | USP/Ph.Eur |
| 3 | Identification(By Melting point) | 122.6°C | 121°C to 124°C | Ph.Eur |
| 4 | Identification (Benzoates) | Complies | A dull-yellow precipitate, soluble in ether should form. | Ph.Eur |
| 5 | Identification (By chemical test 1) | Complies | A salmon-colored precipitate should form | USP |
| 6 | Identification (By chemical test 2) | Complies | A white precipitate should form in 10 min, soluble in ether. | USP |
| 7 | Appearance of Solution | Complies | Clear and colorless solution. | Ph.Eur |
| 8 | Carbonisable substances/Readily carbonizable substances | Complies | The solution is not more intensely colored than reference solution Y5 or matching fluid Q. | USP/Ph.Eur |
| 9 | Oxidisable substances | Complies | The solution is still colored pink. | USP/Ph.Eur |
| 10 | Readily oxidizable substances | 0.40ml of 0.10N potassium permanganate consumed | NMT 0.50ml of 0.10N Potassium permanganate should consume | USP |
| 11 | Halogenated compounds and halides | Less than 300 ppm | NMT 300ppm | Ph.Eur |
| 12 | Sulphated ash / Residue on ignition | 0.02% | NMT 0.05% | USP/Ph.Eur |
| 13 | Assay | 99.51% | 99.0% - 100.5% | Ph.Eur |
| 14 | Assay (anhydrous basis) | 99.82% | 99.5% - 100.5% | USP |
| 15 | Congealing temperature | 122°C | 121° - 123° | USP |
| 16 | Water | 0.08% | NMT 0.7% | USP |
| 17 | Total aerobic bacterial count | Less than 100 CFU/gm | NMT 100 CFU/gm | In-house |
| 18 | Total combined yeast and molds count | Less than 10 CFU/gm | NMT 10 CFU/gm | In-house |
| 19 | Pseud. aeruginosa | Absent/gm | Should be Absent/gm | In-house |
| 20 | Staphylococcus aureus | Absent/gm | Should be Absent/gm | In-house |
| 21 | Bacterial endotoxins | Less than 2.5 EU/gm | NMT 2.5 EU/gm | In-house |