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Dimethyl sulphoxide USP/Ph.Eur PARENTEX 190LT
P0620LL19037497B514DV
USP/Ph.Eur PARENTEX37497B5
67-68-585651
C2H6OSApril 2022
78.13March 2025
Sr.No.TestResultSpecification
1Appearance/DescriptionA clear, colorless, odorless, hygroscopic liquid. Melts 18.5°C. Boils at 189°CA clear, colorless, odorless, hygroscopic liquid or crystals. Melts about 18.4°C. Boils at about 189°C.
2SolubilityPassesSoluble in water. Miscible with ethanol ; practically insoluble in acetone ,in benzene, in chloroform and in ether.
3Identification (By IR)CompliesIR spectra of the sample should be concomittant with IR pectra of the corresponding standard
4Identification (By chemical test 1)CompliesA deep violet, crystalline solid should obtaine which should soluble in chloroform, yielding a red solution.
5Identification (By chemical test 2)CompliesThe colour changes to green or bluish-green. Cool.The colour changes to greenish-yellow.
6Identification (by Relative density, 20°C)1.1011.100-1.104
7Identification (By Refractive index, 20±0.5°C)1.4791.478-1.480
8Specific gravity, 25°C1.097Between 1.095 to 1.101
9Relative density,20°C1.1011.100-1.104
10Refractive index (20°C ± 0.5°C)1.4791.478-1.480
11Refractive index, 25°C1.47561.4755 - 1.4775
12Freezing point18.5°CNLT 18.3°C
13Acidity2.1ml of 0.01N sodium hydroxideNot more than 5.0ml of 0.01N sodium hydroxide should consume
14Water0.068%NMT 0.1%
15UV absorbance profile (10mm cell)@270nm-350nmCompliesThe spectrum is smooth with no absorption maxima.
16UV absorbance ratio (A285nm/A275nm)0.38NMT 0.65
17UV absorbance ratio (A295nm/A275nm)0.27NMT 0.45
18UV absorbance profile (10mm cell)@275nm0.097NMT 0.20
19UV absorbance profile (10mm cell)@285nm0.037NMT 0.20
20UV absorbance profile (10mm cell)@295nm0.027NMT 0.20
21Limit of Non volatile residue0.0025%NMT 0.01%
22Related compunds / Related substances - Total impurities0.04%NMT 0.10%
23Related substance (Unspecified impurities)0.03%NMT 0.10%
24Assay (Anhydrous basis)99.96%NLT 99.9%
25Total aerobic microbial countLess than 1000 CFU/mLNMT 1000 CFU/mL
26Total Yeast and mold countLess than 100 CFU/mLNMT 100 CFU/mL
Remarks: THE CAPTIONED BATCH MATERIAL COMPLIES WITH THE PRESCRIBED QUALITY OF THE ABOVE SPECIFICATION AS WELL AS USP, 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.
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