900645

Dimethyl sulfoxide

anhydrous, ZerO₂^®, ≥99.9%

• Synonym(s): Degassed and low oxygen dimethyl sulfoxide, Dimethyl sulfoxide ZerO₂^®, DMSO
• Linear Formula: (CH₃)₂SO
• CAS Number: 67-68-5
• Molecular Weight: 78.13
• EC Number: 200-664-3
• UNSPSC Code: 12191502
• NACRES: NA.21
• Beilstein/REAXYS Number: 506008
• MDL number: MFCD00002089
• Assay: ≥99.9%
• Grade: ZerO₂^®
• Bp: 189 °C (lit.)
• Vapor pressure: 0.42 mmHg ( 20 °C)

Properties

• grade: ZerO₂^®
• Quality Segment: 100
• vapor density: 2.7 (vs air)
• vapor pressure: 0.42 mmHg ( 20 °C)
• assay: ≥99.9%
• form: liquid
• autoignition temp.: 573 °F
• quality: anhydrous
• expl. lim.: 42 %, 63 °F
• dilution: (for analytical testing)
• impurities: ≤0.005% water; water
• refractive index: n20/D 1.479 (lit.)
• bp: 189 °C (lit.)
• mp: 16-19 °C (lit.)
• density: 1.10 g/mL (lit.)
• SMILES string: CS(C)=O
• InChI: 1S/C2H6OS/c1-4(2)3/h1-2H3
• InChI key: IAZDPXIOMUYVGZ-UHFFFAOYSA-N

Description

Application

ZerO₂ products are rigorously degassed with highly pure inert gas providing solvents and solutions (anhydrous if specified) with very low residual oxygen content.

Legal Information

ZerO₂ is a registered trademark of Sigma-Aldrich Co. LLC

Disclaimer

Supercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk: WGK 1
• flash_point_f: 188.6 °F - closed cup
• flash_point_c: 87 °C - closed cup