Dimethyl sulfoxide-d6 Chemical Properties

Melting point:

20.2 °C

Boiling point:

55 °C5 mm Hg(lit.)

Density 

1.190 g/mL at 25 °C(lit.)

vapor pressure 

0.42 mm Hg ( 20 °C)

refractive index 

n20/D 1.476(lit.)

Flash point:

185 °F

storage temp. 

no restrictions.

solubility 

Minimum isotopic purity 99.96%

form 

Liquid

Specific Gravity

1.190

color 

Colorless

explosive limit

1.8-63%(V)

Water Solubility 

Miscible with water and with almost all organic solvents such as alcohols, esters, ketones, chlorinated solvents and aromatic hydrocarbons.

Sensitive 

Hygroscopic

BRN 

1237248

Stability:

Stable. Combustible. Moisture sensitive. Incompatible with acid chlorides, strong acids, phosphorus halides, strong oxidizing agents, strong reducing agents. Reacts violently with a wide range of materials - consult a full MSDS sheet before starting use.

LogP

-0.69 at 20℃ and pH7

CAS DataBase Reference

2206-27-1(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36-23

RIDADR 

NA 1993 / PGIII

WGK Germany 

3

RTECS 

PV6210000

Autoignition Temperature

573 °F

HS Code 

2845 90 10

Toxicity

LD50 orally in Rabbit: 14500 mg/kg LD50 dermal Rat 40000 mg/kg

MSDS

• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Dimethyl sulfoxide-d6 Usage And Synthesis

Chemical Properties

Dimethyl sulfoxide-d6 is a sulfur-containing compound with the molecular formula (CD3)2SO. It is a colorless, odorless, transparent liquid at room temperature, with a freezing point of 18.45°C and a boiling point of 189°C. It has a slightly bitter taste and is highly soluble in water, alcohol, ether, and ester, exhibiting strong hygroscopic properties. DMSO remains stable below 140°C but decomposes into trace amounts of aldehydes, sulfides, and mercaptans when heated for extended periods at its boiling point. Decomposition accelerates under acidic conditions but can be inhibited in alkaline environments. Therefore, DMSO refining is typically performed via vacuum distillation, with the pH maintained around 8, or by adding sodium oxalate as a stabilizer.

Uses

(Dimethyl Sulfoxide-d6) DMSO is a very common aprotic solvent that is used in a variety of organic chemical reactions and spectroscopic analyses.

Uses

DMSO-d6 is a solvent of choice in NMR spectroscopy, owing to its unique characteristics of dissolving both nonpolar and polar compounds, miscibility with almost all organic solvents and permitting high temperature dynamic NMR studies.

Uses

Dimethyl sulfoxide-d₆ may be used as an NMR solvent for ¹H and ¹³C NMR experiments.

Definition

ChEBI: Dimethyl sulfoxide-d6 is a deuterated compound, a sulfoxide and a volatile organic compound.

General Description

Dimethyl sulfoxide-d₆ (DMSO-d₆) is a deuterated solvent. It is 100% isotopically enriched NMR (Nuclear Magnetic Resonance) solvent. It is widely employed in high resolution NMR studies due to its high chemical and isotopic purity. On photoirradiation in the range of 193 and 222nm, it undergoes decomposition to afford CD₃ radicals. Quantum yields of CD₃ have been evaluated by infrared diode laser absorption spectroscopy. 100% DMSO-d₆ has been used as solvent in the long-range COSY (Correlation Spectroscopy) experiment.

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