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2H-1-Benzopyran-2-thione, 3,4-dihydro-, also known as 3,4-dihydro-2H-1-benzopyran-2-thione or 3,4-dihydrocoumarin-2-thione, is an organic compound with the chemical formula C9H8OS. It is a derivative of coumarin, a heterocyclic organic compound that consists of a benzene ring fused to a pyran ring. The presence of a sulfur atom in the thioketal form (thione) differentiates it from the more common coumarin structure. 2H-1-Benzopyran-2-thione, 3,4-dihydro- is characterized by its unique chemical properties and potential applications in various fields, such as pharmaceuticals and chemical research.

5703-63-9

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Basic information
1. Product Name: 2H-1-Benzopyran-2-thione, 3,4-dihydro-
2. Synonyms:
3. CAS NO:5703-63-9
4. Molecular Formula: C9H8OS
5. Molecular Weight:
6. EINECS: N/A
7. Product Categories: N/A
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-1-Benzopyran-2-thione, 3,4-dihydro-(CAS DataBase Reference)
10. NIST Chemistry Reference: 2H-1-Benzopyran-2-thione, 3,4-dihydro-(5703-63-9)
11. EPA Substance Registry System: 2H-1-Benzopyran-2-thione, 3,4-dihydro-(5703-63-9)
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: 5703-63-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 5703-63-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,0 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5703-63:
(6*5)+(5*7)+(4*0)+(3*3)+(2*6)+(1*3)=89
89 % 10 = 9
So 5703-63-9 is a valid CAS Registry Number.

5703-63-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name	3,4-dihydro-2H-[1]benzopyran-2-thione

1.2 Other means of identification

Product number	-
Other names	3,4-dihydro-2H-1-benzopyran-2-thione

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).

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