| Dimethyl sulphoxide USP/Ph.Eur 25LT | |||
| 97260LL025 | 417137102IW | ||
| USP/Ph.Eur | 4171371 | ||
| 67-68-5 | 97560 | ||
| C2H6OS | September 2023 | ||
| 78.13 | August 2026 | ||
| Sr.No. | Test | Result | Specification |
|---|---|---|---|
| 1 | Appearance/Description | A clear, colorless, odorless, hygroscopic liquid. Melts at 18.9°C. Boils at 189°C | A clear, colorless, odorless, hygroscopic liquid or crystals. Melts about 18.4°C. Boils at about 189°C. |
| 2 | Solubility | Complies | Soluble in water. Miscible with ethanol (96 per cent) ; practically insoluble in acetone, in benzene, in chloroform in ether and in alcohol. |
| 3 | Identification (By IR) | Complies | IR spectra of the sample should be concomittant with IR pectra of the corresponding standard |
| 4 | Identification (By chemical test 1) | Complies | A deep violet, crystalline solid should obtaine which should soluble in chloroform, yielding a red solution. |
| 5 | Identification (By chemical test 2) | Complies | The colour changes to green or bluish-green. Cool. The colour changes to greenish-yellow. |
| 6 | Identification (by Relative density, 20°C) | 1.102 | 1.100-1.104 |
| 7 | Identification (By Refractive index, 20±0.5°C) | 1.478 | 1.478-1.480 |
| 8 | Specific gravity, 25°C | 1.096 | Between 1.095 to 1.101 |
| 9 | Relative density,20°C | 1.102 | 1.100-1.104 |
| 10 | Refractive index (20°C ± 0.5°C) | 1.478 | 1.478-1.480 |
| 11 | Refractive index, 25°C | 1.4762 | 1.4755-1.4775 |
| 12 | Freezing point | 18.8°C | Min. 18.3°C |
| 13 | Acidity | Complies | Not more than 5.0ml of 0.01N sodium hydroxide should consume |
| 14 | Water | 0.06% | NMT 0.1% |
| 15 | UV absorbance profile (10mm cell)@270nm-350nm | Complies | The spectrum is smooth with no absorption maxima. |
| 16 | UV absorbance ratio (A285nm/A275nm) | 0.52 | NMT 0.65 |
| 17 | UV absorbance ratio (A295nm/A275nm) | 0.40 | NMT 0.45 |
| 18 | UV absorbance profile (10mm cell)@275nm | 0.116 | NMT 0.20 |
| 19 | UV absorbance profile (10mm cell)@285nm | 0.060 | NMT 0.20 |
| 20 | UV absorbance profile (10mm cell)@295nm | 0.046 | NMT 0.20 |
| 21 | Limit of Non volatile residue | 0.002% | Not more than 0.01% |
| 22 | Related substances, unspecified impurities | 0.001% | NMT 0.10% |
| 23 | Related compunds / Related substances - Total impurities | 0.01% | NMT 0.10% |
| 24 | Assay (on Anhydrous basis) | 99.99% | NLT 99.9% |
Remarks: THE CAPTIONED MATERIAL COMPLIES WITH THE PRESCRIBED QUALITY OF USP AND PH.EUR 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.
