Certificate of Analysis
Product Name:
Dimethyl sulfoxide
Product Description:
sterile-filtered, BioPerformance Certified, meets EP, USP testing specifications, suitable for hybridoma
Product Brand:
Sigma-Aldrich
Product Number:
D2438
Molecular Weight:
78.13
Molecular Formula:
(CH3)2SO
CAS Number:
67-68-5
Test
Specification
Lot RNBL8837 Results
Storage:
ROOM TEMPERATURE
Print Date:
05 MAY 2023
Expiry date:
MAR 2025
Date of QC Release:
05 MAY 2023
Place of Manufacture:
Irvine. United Kingdom
Production Date:
MAR 2023
Appearance (Turbidity)
Clear
Clear
Appearance (Form)
Liquid
Liquid
Appearance (Colour)
Colorless
Colorless
Cytoxicity or abnormal cell growth by CF
Pass
Pass
Sterility
Pass
Pass
Endotoxin Level
<= 1 EU/ml
< 1 EU/ml
Purity (GC)
>= 99.9 %
100.0 %
Identity Test A (USP)
Current USP Specification
Conforms
Identity Test B (USP)
Current USP Specification
Conforms
Identity Test C (EP)
Current EP Specification
Conforms
Refractive Index (USP)
1.4755 - 1.4775
1.4771
Refractive Index (EP)
1.478 - 1.480
1.479
Specific Gravity (USP)
1.095 - 1.101
1.098
Relative density (EP)
1.100 - 1.104
1.102
Water content (USP)
<= 0.1 %
< 0.1 %
Water content (EP)
<= 0.2 %
< 0.2 %
Acidity (USP)
Current USP Specification
Conforms
Acidity (EP)
Current EP Specification
Conforms
Related Compounds (USP)
Current USP Specification
Conforms
Related Substances (EP)
Current EP Specification
Conforms
Assay (USP)
>= 99.9 %
100.0 %
Limit of Nonvolatile Residue (USP)
<= 0.01 %
< 0.01 %
Freezing Point (EP)
>= 18.3 °C
18.9 °C
UV Absorbance @ 275nm (USP)
<= 0.20
0.10
A285/A275 UV Absorption (USP)
<= 0.65
0.40
A295/A275 UV Absorption (USP)
<= 0.45
0.25
UV Absorbance 275nm (EP)
<= 0.30
0.11
UV Absorbance 285nm (EP)
<= 0.20
0.05
UV Absorbance 295nm (EP)
<= 0.20
0.03
270-350nm: No absorption maxima (EP/USP)
Pass
Pass
Identity by IR. NIR or NMR
Pass
Pass
Animal Derived Component Free
Conforms
Conforms
