| Dimethyl sulphoxide USP 2.5LT | |||
| 96260LC250 | 254531810DR | ||
| USP | 2545318 | ||
| 67-68-5 | 47664 | ||
| C2H6OS | April 2018 | ||
| 78.13 | March 2021 | ||
| Sr.No. | Test | Result | Specification |
|---|---|---|---|
| 1 | Description | A clear, colorless odorless, hygroscopic liquid. Melts about 18.4°C. Boil at about 189°C | A clear, colorless, odorless, hygroscopic liquid. Melts about 18.4°C. Boils at about 189°C. |
| 2 | Solubility | Passes | Soluble in water; practically insoluble in acetone, in alcohol, in benzene, in chloroform and in ether. |
| 3 | Identification A (By IR) | Complies | To Comply the test |
| 4 | Identification B (By Chemical test) | Complies | A deep violet, crystalline solid is obtained, and it is soluble in chloroform, yielding a red solution. |
| 5 | Specific gravity (25°C) | 1.096 | Between 1.095 to 1.101 |
| 6 | Refractive index (25°C) | 1.4755 | Between 1.4755 to 1.4775 |
| 7 | Acidity | Complies | Not more than 5.0ml of 0.01N sodium hydroxide is consumed. |
| 8 | Water | 0.071% | Not more than 0.1% |
| 9 | UV absorbance profile (10mm cell)@275nm | 0.169 | Not more than 0.20 |
| 10 | UV absorbance profile (10mm cell)@270nm-350nm | Complies | The spectrum is smooth with no absorption maxima. |
| 11 | UV absorbance ratio (A285nm/A275nm) | 0.60 | Not more than 0.65 |
| 12 | UV absorbance ratio (A295nm/A275nm) | 0.36 | Not more than 0.45 |
| 13 | Limit of Non volatile residue | 0.005% | Not more than 0.01% |
| 14 | Related substances (By GC) | 0.0024% | Not more than 0.1% |
| 15 | Assay (Anhydrous basis) | 99.99% | Not less than 99.9% |
Remarks: THE CAPTIONED MATERIAL COMPLIES WITH THE PRESCRIBED QUALITY OF USP SPECIFICATION.
FINAR provides this analytical report in good faith and to the best of its knowledge. It should not be substituted for the users own raw material quality control.
| Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |
Computer Generated Report - Does not require Signature.
