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Naphtho[2,3-b]thiirene, also known as 2,3-benzo-1,4-dithiin, is an organic compound with the chemical formula C10H6S2. It is a heterocyclic aromatic compound consisting of a naphthalene core with a sulfur atom replacing one of the carbon atoms in the 2,3-position, forming a thiirene ring. Naphtho[2,3-b]thiirene(9CI) is characterized by its unique electronic structure and chemical properties, which arise from the presence of the sulfur atoms in the ring. Naphthothiirene derivatives have been studied for their potential applications in materials science, pharmaceuticals, and as intermediates in the synthesis of various organic compounds. The compound is generally synthesized through various chemical reactions, such as cyclization of appropriate precursors or by the reaction of naphthalene derivatives with sulfur-containing reagents. Due to its aromatic nature and the presence of sulfur atoms, naphtho[2,3-b]thiirene exhibits interesting chemical reactivity and can undergo various reactions, such as electrophilic substitution, nucleophilic addition, and cycloaddition.

286-90-8

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Basic information
1. Product Name: Naphtho[2,3-b]thiirene(9CI)
2. Synonyms: Naphthalene,2,3-epithio- (8CI)
3. CAS NO:286-90-8
4. Molecular Formula: C10H6 S
5. Molecular Weight:
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 286-90-8.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: Naphtho[2,3-b]thiirene(9CI)(CAS DataBase Reference)
10. NIST Chemistry Reference: Naphtho[2,3-b]thiirene(9CI)(286-90-8)
11. EPA Substance Registry System: Naphtho[2,3-b]thiirene(9CI)(286-90-8)
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: 286-90-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 286-90-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,8 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 286-90:
(5*2)+(4*8)+(3*6)+(2*9)+(1*0)=78
78 % 10 = 8
So 286-90-8 is a valid CAS Registry Number.

286-90-8SDS

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	naphtho[2,3-b]thiirene

1.2 Other means of identification

Product number	-
Other names	Naphtho[2,3-b]thiirene(9CI)

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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