3-Methyl-1,2-oxathiolane 2,2-dioxide

Modify Date: 2025-08-25 08:19:53

3-Methyl-1,2-oxathiolane 2,2-dioxide Structure
3-Methyl-1,2-oxathiolane 2,2-dioxide structure
 Common Name 3-Methyl-1,2-oxathiolane 2,2-dioxide
CAS Number 1121-03-5 Molecular Weight 136.17000
Density 1.28g/cm3 Boiling Point 280.8ºC at 760mmHg
Molecular Formula C4H8O3S Melting Point N/A
MSDS N/A Flash Point 123.6ºC

 Names

Name 2,4-Butanesultone
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.28g/cm3
Boiling Point 280.8ºC at 760mmHg
Molecular Formula C4H8O3S
Molecular Weight 136.17000
Flash Point 123.6ºC
Exact Mass 136.01900
PSA 51.75000
LogP 1.20580
Vapour Pressure 0.00631mmHg at 25°C
Index of Refraction 1.458

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
RP5480000
CHEMICAL NAME :
1,2-Oxathiolane, 3-methyl-, 2,2-dioxide
CAS REGISTRY NUMBER :
1121-03-5
BEILSTEIN REFERENCE NO. :
0110592
LAST UPDATED :
199710
DATA ITEMS CITED :
3
MOLECULAR FORMULA :
C4-H8-O3-S
MOLECULAR WEIGHT :
136.18

 Safety Information

Hazard Codes F+
RIDADR UN 2810
Packaging Group III
Hazard Class 6.1(b)
HS Code 2934991000

 Synthetic Route

1-Chlorobutane structure

1-Chlorobutane

CAS#:109-69-3

~%

1,4-Butane sultone structure

1,4-Butane sultone

CAS#:1633-83-6

3-Methyl-1,2-oxathiolane 2,2-dioxide Structure

3-Methyl-1,2-ox...

CAS#:1121-03-5

Literature: J. Appl. Chem. USSR (Engl. Transl.), , vol. 53, # 3 p. 647 - 652,526 - 530
1,3-Propanesultone structure

1,3-Propanesultone

CAS#:1120-71-4

methyl iodide structure

methyl iodide

CAS#:74-88-4

~%

3-Methyl-1,2-oxathiolane 2,2-dioxide Structure

3-Methyl-1,2-ox...

CAS#:1121-03-5

Literature: Bioorganic and Medicinal Chemistry Letters, , vol. 8, # 21 p. 3059 - 3064
1,3-Propanesultone structure

1,3-Propanesultone

CAS#:1120-71-4

Methyl bromide structure

Methyl bromide

CAS#:74-83-9

~%

3-Methyl-1,2-oxathiolane 2,2-dioxide Structure

3-Methyl-1,2-ox...

CAS#:1121-03-5

Literature: Journal of Organic Chemistry, , vol. 46, p. 101 - 106
1-Chlorobutane structure

1-Chlorobutane

CAS#:109-69-3

Butanol structure

Butanol

CAS#:71-36-3

~%

1,4-Butane sultone structure

1,4-Butane sultone

CAS#:1633-83-6

3-Methyl-1,2-oxathiolane 2,2-dioxide Structure

3-Methyl-1,2-ox...

CAS#:1121-03-5

Literature: J. Appl. Chem. USSR (Engl. Transl.), , vol. 53, # 3 p. 647 - 652,526 - 530

 Customs

HS Code 2934991000
Summary 2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Synonyms

1-Methyl-1,3-propanesultone
3-Methyl-1,2-oxathiolane 2,2-Dioxide
4-Hydroxy-2-butanesulfonic acid γ-sultone
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