
| Dimethyl sulphoxide extrapure 500ML | |||
| 10620LM500 | 464410214GY | ||
| Extrapure | 4644102 | ||
| 67-68-5 | 112800 | ||
| C2H6OS | July 2025 | ||
| 78.13 | June 2030 | ||
| Sr.No. | Test | Result | Specification | Method Reference |
|---|---|---|---|---|
| 1 | Description | Clear colourless liquid. | Clear colourless liquid. | |
| 2 | Assay (GC) | 99.99% | min. 99.00% | |
| 3 | Boiling point(95%) | 191°C | 189 - 193 deg C | |
| 4 | Refractive index | 1.478 | 1.478 - 1.479 | |
| 5 | Free acid(as CH3COOH) | 0.005% | 0.01% max. | |
| 6 | Substances discoloured by sulphuric acid(H2SO4) | Complies | Passes test | |
| 7 | Water | 0.045% | 0.20% max. |
| Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |