Cas 137251-05-9,2,5-Bis-di-p-tolylmethylene-2,5-dihydro-thieno[3,2-b]thiophene

137251-05-9

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Basic information

Product Name: 2,5-Bis-di-p-tolylmethylene-2,5-dihydro-thieno[3,2-b]thiophene
Synonyms:
CAS NO:137251-05-9
Molecular Formula:
Molecular Weight: 526.766
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 2,5-Bis-di-p-tolylmethylene-2,5-dihydro-thieno[3,2-b]thiophene(CAS DataBase Reference)
NIST Chemistry Reference: 2,5-Bis-di-p-tolylmethylene-2,5-dihydro-thieno[3,2-b]thiophene(137251-05-9)
EPA Substance Registry System: 2,5-Bis-di-p-tolylmethylene-2,5-dihydro-thieno[3,2-b]thiophene(137251-05-9)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 137251-05-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 137251-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,5 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 137251-05:
(8*1)+(7*3)+(6*7)+(5*2)+(4*5)+(3*1)+(2*0)+(1*5)=109
109 % 10 = 9
So 137251-05-9 is a valid CAS Registry Number.

137251-05-9Upstream product

137251-11-7 [5-(Hydroxy-di-p-tolyl-methyl)-thieno[3,2-b]thiophen-2-yl]-di-p-tolyl-methanol

137251-05-9Downstream Products

137251-05-9Relevant academic research and scientific papers

THERMAL AND PHOTOCHEMICAL FORMATION OF QUINONOID DERIVATIVES OF CONDENSED POLYTHIOPHENES AND THEIR SPECTRAL PROPERTIES

Mazaki, Yasuhiro,Murata, Shinobu,Kobayashi, Keiji

, p. 4367 - 4370 (1991)

Quinonoid derivatives of linearly condensed thiophenes have been prepared from their precursor diols thermally as well as photochemically and their spectral characteristics are demonstrated.

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