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2H-Thiopyran-3,5(4H,6H)-dione, 2-methyl- is a chemical compound with the molecular formula C6H6O2S. It is a derivative of 2H-thiopyran-3,5-dione, featuring a methyl group attached to the 2-position. 2H-Thiopyran-3,5(4H,6H)-dione, 2-methyl- is characterized by a six-membered ring structure with a sulfur atom in the 1-position, a carbonyl group at the 3-position, and another carbonyl group at the 5-position. The 2-methyl group provides additional steric hindrance and affects the compound's reactivity and physical properties. It is an organic compound that may be used in the synthesis of various pharmaceuticals and other chemical products due to its unique structure and reactivity.

16855-83-7

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Basic information
1. Product Name: 2H-Thiopyran-3,5(4H,6H)-dione, 2-methyl-
2. Synonyms:
3. CAS NO:16855-83-7
4. Molecular Formula: C6H8O2S
5. Molecular Weight: 144.194
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 16855-83-7.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: 2H-Thiopyran-3,5(4H,6H)-dione, 2-methyl-(CAS DataBase Reference)
10. NIST Chemistry Reference: 2H-Thiopyran-3,5(4H,6H)-dione, 2-methyl-(16855-83-7)
11. EPA Substance Registry System: 2H-Thiopyran-3,5(4H,6H)-dione, 2-methyl-(16855-83-7)
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: 16855-83-7(Hazardous Substances Data)

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16855-83-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16855-83-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,8,5 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 16855-83:
(7*1)+(6*6)+(5*8)+(4*5)+(3*5)+(2*8)+(1*3)=137
137 % 10 = 7
So 16855-83-7 is a valid CAS Registry Number.

16855-83-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name	2-methylthiane-3,5-dione

1.2 Other means of identification

Product number	-
Other names	2-methyl-thiopyran-3,5-dione

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:16855-83-7 SDS

16855-83-7Upstream product

16855-83-7Downstream Products

402842-39-1 2-(6-methyl-5-oxo-5,6-dihydro-2H-thiopyran-3-ylamino)-benzonitrile

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