D8418

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D8418

Sigma

 

Dimethyl sulfoxide

≥99.9%, for molecular biology

Synonym:DMSO, Methyl sulfoxide
CAS Number:67-68-5
Linear Formula:(CH3)2SO
Molecular Weight:78.13
Beilstein Registry Number:506008
EC Number:200-664-3
MDL number:MFCD00002089
PubChem Substance ID:24894214

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Description

Frequently Asked QuestionsLive Chat and Frequently Asked Questions are available for this Product.
CautionSupercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.

Properties

gradefor molecular biology
vapor density2.7 (vs air)
vapor pressure0.42 mmHg ( 20 °C)
assay≥99.9%
autoignition temp.573 °F
expl. lim.42 %± , 63 °F
total impurities≤0.001 meq/g Titratable acid
 ≤0.1% water (Karl Fischer)
refractive indexn20/D 1.479(lit.)
bp189 °C(lit.)
mp16-19 °C(lit.)
density1.10 g/mL(lit.)
abs.UV absorption/ passes test
foreign activityDNase and RNase, none detected

Safety

Personal Protective EquipmentEyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US)
WGK Germany1
RTECSPV6210000
UEL42.00%(V)
LEL3.50%(V)
Flash Point(F)188.6 °F
Flash Point(C)87 °C

References

MerckMerck 13,3285
BeilsteinBeil. 1,IV,1277
FieserFieser 1,296 / Fieser 2,157 / Fieser 3,119 / Fieser 4,192 / Fieser 5,263 / Fieser 6,225 / Fieser 7,133 / Fieser 8,198 / Fieser 9,184 / Fieser 9,189 / Fieser 10,166 / Fieser 11,214 / Fieser 12,212 / Fieser 13,124 / Fieser 16,149
referenceAldrich MSDS 1, 1308:D / Corp MSDS 1 (2), 2440:C / FT-IR 2 (1), 1492:B / FT-IR 1 (1), 879:A / FT-NMR 1 (1), 1417:A / IR-Spectra (3), 529:A / NMR-Reference 2 (2), 781:A / RegBook 1 (1), 1043:A / Sax 6, 1201 / Structure Index 1, 162:A:1 / Vapor Phase 3, 831:A