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Cas Database

Name	Diethyl sulfoxide	EINECS	N/A
CAS No.	70-29-1	Density	1.02g/cm³
PSA	36.28000	LogP	1.64060
Solubility	N/A	Melting Point	14°C
Formula	C4H10 O S	Boiling Point	212°C at 760 mmHg
Molecular Weight	106.189	Flash Point	82°C
Transport Information	N/A	Appearance	N/A
Safety	Moderately toxic by ingestion and intraperitoneal routes. Mildly toxic by intravenous route. When heated to decomposition it emits toxic fumes of SO_x.	Risk Codes	N/A
Molecular Structure		Hazard Symbols	N/A
Synonyms	Ethylsulfoxide (6CI,8CI); 1,1'-Sulfinylbis(ethane); Diethyl sulfoxide; Diethylsulphoxide; NSC 139125	Article Data	56

Diethyl sulfoxide Synthetic route

: 352-93-2
diethyl sulphide

: 70-29-1
diethyl sulphide

Conditions

Conditions	Yield
With oxygen; isobutyraldehyde; tris(1,3-bis(p-methoxyphenyl)-1,3-propanedionato)nickel(II) In acetonitrile at 60℃; for 21h;	100%
With lithium perchlorate; Re(O)(2-(2'-hydroxyphenyl)-2-oxazoline)2Cl In [D3]acetonitrile; water-d2 at 20℃; for 4h;	100%
With dihydrogen peroxide In water; acetonitrile at 24.84℃; for 1.66667h;	100%

: 352-93-2
diethyl sulphide

: 600-18-0
2-Oxobutyric acid

A: 70-29-1
diethyl sulphide

B: 124-38-9
carbon dioxide

C: 802294-64-0
propionic acid

Conditions

Conditions	Yield
With oxygen; methylene blue In pyridine; acetonitrile for 2h; Irradiation;	A 100% B n/a C 52%

: 352-93-2
diethyl sulphide

: 218794-58-2
benzophenone oxide O-<1-hydroperoxy-3,3-(dimethoxycarbonyl)-1-phenyl-2-propenyl> ether

A: 70-29-1
diethyl sulphide

B: 574-66-3
Benzophenone oxime

C: 64677-34-5
methyl 2-carbomethoxy-4-methylphenyl-4-oxo-2-butenoate

Conditions

Conditions	Yield
In tetrachloromethane for 0.5h; Product distribution;	A n/a B 98% C 97%

: 352-93-2
diethyl sulphide

: 1821-02-9
2-oxopentanoic acid

A: 70-29-1
diethyl sulphide

B: 124-38-9
carbon dioxide

C: 107-92-6
butyric acid

Conditions

Conditions	Yield
With oxygen; methylene blue In pyridine; acetonitrile for 2h; Irradiation;	A 92% B n/a C 19%

: 352-93-2
diethyl sulphide

: 611-73-4
Benzoylformic acid

A: 70-29-1
diethyl sulphide

B: 597-35-3
diethylsulfone

C: 124-38-9
carbon dioxide

D: 65-85-0
benzoic acid

Conditions

Conditions	Yield
With oxygen; 5,15,10,20-tetraphenylporphyrin In benzene for 2h; Irradiation;	A 88% B 10% C n/a D 38%
With oxygen; 5,15,10,20-tetraphenylporphyrin In benzene for 2h; Mechanism; Irradiation; other solvents and sensitizer;	A 88% B 10% C n/a D 38%

...Expand

: 352-93-2
diethyl sulphide

: 127-17-3
2-oxo-propionic acid

A: 70-29-1
diethyl sulphide

B: 597-35-3
diethylsulfone

C: 124-38-9
carbon dioxide

D: 64-19-7
acetic acid

Conditions

Conditions	Yield
With oxygen; methylene blue In pyridine; acetonitrile for 2h; Irradiation;	A 65% B 3% C n/a D 64%

...Expand

: 925-90-6
ethylmagnesium bromide

: 499140-11-3
benzyl (2S,4S,5R)-4-methyl-5-phenyl-1,2,3-oxathiazolidine-2-oxide-3-carboxylate

A: 70-29-1
diethyl sulphide

B: (1R,2S)-2-{[(benzyloxy)carbonyl]amino}-1-phenylpropyl (S)-ethanesulfinate

Conditions

Conditions	Yield
In dichloromethane at -78℃;	A n/a B 46%

: 925-90-6
ethylmagnesium bromide

: 499140-12-4
benzyl (2R,4S,5R)-4-methyl-5-phenyl-1,2,3-oxathiazolidine-2-oxide-3-carboxilate

A: 70-29-1
diethyl sulphide

B: (1R,2S)-2-{[(benzyloxy)carbonyl]amino}-1-phenylpropyl (S)-ethanesulfinate

Conditions

Conditions	Yield
In dichloromethane at -78℃;	A n/a B 46%

: 60-29-7
diethyl ether

: 625-01-4
ethyl chlorosulfate

: 925-90-6
ethylmagnesium bromide

A: 352-93-2
diethyl sulphide

B: 70-29-1
diethyl sulphide

: 60-29-7
diethyl ether

: 625-01-4
ethyl chlorosulfate

: ethylmagnesium bromide

A: 352-93-2
diethyl sulphide

B: 70-29-1
diethyl sulphide

Diethyl sulfoxide Chemical Properties

Empirical Formula of Diethyl sulfoxide (CAS NO.70-29-1): C₄H₁₀OS
Molecular Weight: 106.1866
EINECS: 200-732-2
Index of Refraction: 1.477
Density: 1.02 g/cm³
Flash Point: 82 °C
Enthalpy of Vaporization: 43 kJ/mol
Boiling Point: 212 °C at 760 mmHg
Vapour Pressure: 0.258 mmHg at 25 °C
Structure of Diethyl sulfoxide (CAS NO.70-29-1):

IUPAC Name of Diethyl sulfoxide (CAS NO.70-29-1): 1-Ethylsulfinylethane
Canonical SMILES: CCS(=O)CC
InChI: InChI=1S/C4H10OS/c1-3-6(5)4-2/h3-4H2,1-2H3
InChIKey: CCAFPWNGIUBUSD-UHFFFAOYSA-N

Diethyl sulfoxide Toxicity Data With Reference

1.	orl-rat LD50:5650 mg/kg	COREAF Comptes Rendus Hebdomadaires des Seances de l’Academie des Sciences. 260 (1965),327.
2.	ipr-rat LD50:4370 mg/kg	COREAF Comptes Rendus Hebdomadaires des Seances de l’Academie des Sciences. 260 (1965),327.
3.	ivn-rat LD50:4990 mg/kg	COREAF Comptes Rendus Hebdomadaires des Seances de l’Academie des Sciences. 260 (1965),327.
4.	orl-mus LD50:3610 mg/kg	COREAF Comptes Rendus Hebdomadaires des Seances de l’Academie des Sciences. 260 (1965),327.
5.	ipr-mus LD50:2500 mg/kg	IJRBA3 International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine. 3 (1961),41.
6.	ivn-mus LD50:4370 mg/kg	COREAF Comptes Rendus Hebdomadaires des Seances de l’Academie des Sciences. 260 (1965),327.

Diethyl sulfoxide Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. Mildly toxic by intravenous route. When heated to decomposition it emits toxic fumes of SO_x.

Diethyl sulfoxide Specification

Diethyl sulfoxide ,its cas register number is 70-29-1. It also can be called Ethyl sulfoxide ; 1,1'-Sulphinylbisethane ; Ethane, 1,1'-sulfinylbis- ; and Ethane, 1,1'-sulfinylbis- .

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