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Dimethyl sulfoxide_Molecular_structure_CAS_67-68-5)
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Dimethyl sulfoxide

Catalog No. 154938 Name Sigma Aldrich
CAS Number 67-68-5 Website http://www.sigmaaldrich.com
M. F. C2H6OS Telephone 1-800-521-8956
M. W. 78.13344 Fax
Purity ≥99.9% Email
Storage Chembase ID: 964

SYNONYMS

Title
二甲基亚砜
IUPAC name
methanesulfinylmethane
IUPAC Traditional name
dimethyl sulfoxide
Synonyms
DMSO
甲基亚砜
Methyl sulfoxide

DATABASE IDS

CAS Number 67-68-5
MDL Number MFCD00002089
PubChem SID 24849315
EC Number 200-664-3
Beilstein Number 506008

PROPERTIES

Impurities ≤0.001 meq/g Titr. acid
Impurities ≤0.100% water
λ H2O reference
Linear Formula (CH3)2SO
Purity ≥99.9%
Evaporation Residue ≤0.0100%
Grade ACS spectrophotometric grade
Absorption Wavelength λ: 270 nm Amax: 0.40
Absorption Wavelength λ: 290 nm Amax: 0.18
Absorption Wavelength λ: 310 nm Amax: 0.06
Absorption Wavelength λ: 330 nm Amax: 0.02
Absorption Wavelength λ: 350-400 nm Amax: 0.01
Apperance clear, colorless
Auto Ignition Point 573 °F
Boiling Point 189 °C(lit.)
Density 1.10 g/mL(lit.)
Flash Point 87 °C
Flash Point 188.6 °F
Melting Point 16-19 °C(lit.)
Refractive Index n20/D 1.479(lit.)
Vapor Density 2.7 (vs air)
Vapor Pressure 0.42 mmHg ( 20 °C)
Explode Limits 42 %, 63 °F
MSDS Link Download
Personal Protective Equipment Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
RTECS PV6210000
German water hazard class 1

DETAILS

Description (English)
Frequently Asked Questions
Live Chat and Frequently Asked Questions are available for this Product.
Caution
Supercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.
Packaging
1, 2, 4×2, 4×4 L in glass bottle
100 mL in glass bottle
Description (简体中文)
Frequently Asked Questions
Live Chat and Frequently Asked Questions are available for this Product.
Caution
容易过度冷却,并在室温下缓慢融化固化的产品放在室温下可以再次液化,对其本身无影响。
包装
1, 2, 4×2, 4×4 L in glass bottle
100 mL in glass bottle

REFERENCES