| Dimethyl sulphoxide USP CS1 2.5LT | |||
| 91620LC250 | 350336321FU | ||
| USP Customer specific 1 | 3503363 | ||
| 67-68-5 | 76169 | ||
| C2H6OS | June 2021 | ||
| 78.13 | May 2024 | ||
| Sr.No. | Test | Result | Specification |
|---|---|---|---|
| 1 | Description | A clear, colorless, odorless, hygroscopic liquid. Melts 18.4°C. Boils at 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 | IR spectra of the sample should be concomittant with IR spectra of the corresponding standard |
| 4 | Identification B (By Chemical test) | Complies | A deep violet, crystalline solid should obtaine which should soluble in chloroform, yielding a red solution. |
| 5 | Specific gravity (25°C) | 1.097 | Between 1.095 to 1.101 |
| 6 | Refractive index (25°C) | 1.4760 | Between 1.4755 and 1.4775 |
| 7 | Acidity | 2.5ml of 0.01N sodium hydroxide | Not more than 5.0ml of 0.01N sodium hydroxide should consume |
| 8 | Water | 0.06% | Not more than 0.1% |
| 9 | UV absorbance profile (10mm cell)@275nm | 0.075 | 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) | 0.28 | Not more than 0.65 |
| 12 | UV absorbance ratio (A295nm/A275nm) | 0.10 | Not more than 0.45 |
| 13 | Limit of Non volatile residue | 0.0020% | Not more than 0.01% |
| 14 | Related compounds : Total impurities | 0.01% | Not more than 0.1% |
| 15 | Assay (Anhydrous basis) | 99.97% | Not less than 99.9% |
| 16 | Total aerobic microbial count | Less than 1000 CFU/ml | NMT 1000 CFU/ml |
| 17 | Total Yeast and mold count | Less than 100 CFU/ml | NMT 100 CFU/ml |
Remarks: THE CAPTIONED BATCH MATERIAL COMPLIES WITH THE PRESCRIBED QUALITY OF THE ABOVE SPECIFICATION AS WELL AS 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.
