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Dithieno[2,3-b;2,3-d]thiophene is a heterocyclic organic compound consisting of two thiophene rings fused together with a sulfur atom in between. Dithieno<2,3-b; 2,3-d>thiophene is an important building block in the synthesis of various organic materials, particularly in the field of organic electronics, such as organic solar cells and organic field-effect transistors. Its unique structure provides interesting electronic properties, making it a valuable component in the development of novel materials with tailored characteristics. The compound's chemical formula is C8H4S4, and it is known for its stability and potential applications in the design of new molecular architectures for advanced electronic devices.

236-65-7

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236-65-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 236-65-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,3 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 236-65:
(5*2)+(4*3)+(3*6)+(2*6)+(1*5)=57
57 % 10 = 7
So 236-65-7 is a valid CAS Registry Number.

236-65-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name Bisthieno[2,3-b:2',3'-d]thiophene

1.2 Other means of identification

Product number -
Other names Dithieno<3,2-b,2,3-d>thiophen

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:236-65-7 SDS

236-65-7Upstream product

236-65-7Downstream Products

236-65-7Relevant academic research and scientific papers

THERMAL HYDROTHIOLYSIS OF DI(2-THIENYL)SULFIDE IN THE GASEOUS AND LIQUID PHASE

Voronkov, M. G.,Deryagina, E. N.,Papernaya, L. K.,Sukhomazova, E. N.,Korchevin, N. A.,Efremova, G. G.

, p. 1301 - 1306 (1986)

At 500-600 deg C, di(2-thienyl)sulfide is converted to thiophene, thiophene thiols, dithienyls, and dithienothiophenes, and isomerized to 2,3-dithienylsulfide.Hydrogen sulfide accelerates these reactions significantly.In the liquid phase the thermal conversion of di(2-thienyl)sulfide takes place only with the participation of elemental sulfur or in the system sulfur-hydrogen sulfide.Thiophene and diethienothiophenes are not formed in this case, while isomerization occurs to a large degree.The observed thermal conversions of di(2-thienyl)sulfide are based on the addition of thiyl radicals to the double bonds of the thiophene ring and to the sulfide sulfur atom.

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