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Thiophene, 2,3-dihydro-5-(1-methylethenyl)-, 1,1-dioxide, also known as 5-(1-Methylvinyl)-2,3-dihydrothiophene 1,1-dioxide, is a chemical compound with the molecular formula C6H10O2S. It is a derivative of thiophene, a heterocyclic compound consisting of a five-membered ring with one sulfur atom and four carbon atoms. The 2,3-dihydro-thiophene structure indicates that there are two hydrogen atoms attached to the second and third carbon atoms, while the 5-(1-methylethenyl) group signifies the presence of a methyl group (CH3) and a vinyl group (C=CH2) attached to the fifth carbon atom. The 1,1-dioxide functional group implies that there are two oxygen atoms bonded to the first carbon atom, forming a peroxide bridge. Thiophene, 2,3-dihydro-5-(1-methylethenyl)-, 1,1-dioxide is an important intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other organic compounds due to its unique structure and reactivity.

4055-17-8

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Basic information
1. Product Name: Thiophene, 2,3-dihydro-5-(1-methylethenyl)-, 1,1-dioxide
2. Synonyms:
3. CAS NO:4055-17-8
4. Molecular Formula: C7H10O2S
5. Molecular Weight: 158.221
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 4055-17-8.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: Thiophene, 2,3-dihydro-5-(1-methylethenyl)-, 1,1-dioxide(CAS DataBase Reference)
10. NIST Chemistry Reference: Thiophene, 2,3-dihydro-5-(1-methylethenyl)-, 1,1-dioxide(4055-17-8)
11. EPA Substance Registry System: Thiophene, 2,3-dihydro-5-(1-methylethenyl)-, 1,1-dioxide(4055-17-8)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 4055-17-8(Hazardous Substances Data)

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4055-17-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4055-17-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,5 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4055-17:
(6*4)+(5*0)+(4*5)+(3*5)+(2*1)+(1*7)=68
68 % 10 = 8
So 4055-17-8 is a valid CAS Registry Number.

4055-17-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name	5-isopropenyl-2,3-dihydrothiophene 1,1-dioxide

1.2 Other means of identification

Product number	-
Other names	2-isopropenyl-2-thiolene 1,1-dioxide

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only.
Uses advised against	no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number	-
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4055-17-8 SDS

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