CAS No.: | 67-68-5 |
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Formula: | (CH3)2so |
EINECS: | 200-664-3 |
Type: | Pharmaceutical Intermediates |
Appearance: | Liquid |
Quality: | Industrial |
Samples: |
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CERTIFICATE OF ANALYSIS | |||
Commodity | Dimethyl sulfoxide | Standard | GBT21395-2008 |
Batch number | 20210701 | Inspection date | 2021.07.01 |
Items |
Index | Result |
|
Superior Grade | |||
Appearance | Colorless transparent liquid | Match the norm | |
Purity, % | ≥99.9 | 99.93 | |
Crystallizing point ºC | ≥18.1 | >18.3 | |
Acid number , mg/g (caiculated by KOH) | ≤ 0.03 | 0.01 | |
Transmittance(400nm),% | ≥96 | 100.3 | |
Refractive index(20ºC) | 1.4775~1.4790 | 1.4780 | |
Moisture,% | ≤0.05 | <0.05 | |
PH value | 6~8 | 7.0 | |
Test Conclusion |
Superior-grade |
DMSO is also a osmotic protective agent that can reduce the freezing point of cells, reduce the formation of ice crystals, the damage of free radicals to cells, and change the permeability of biofilms to electrolytes, drugs, poisons and metabolites.
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