Cas 110699-33-7,3,4-Thiophenedicarboxylic acid, 2,2'-(1,4-phenylene)bis[5-methyl-, tetramethyl ester

110699-33-7

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Basic information

Product Name: 3,4-Thiophenedicarboxylic acid, 2,2'-(1,4-phenylene)bis[5-methyl-, tetramethyl ester
Synonyms:
CAS NO:110699-33-7
Molecular Formula: C24H22O8S2
Molecular Weight: 502.566
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: 3,4-Thiophenedicarboxylic acid, 2,2'-(1,4-phenylene)bis[5-methyl-, tetramethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: 3,4-Thiophenedicarboxylic acid, 2,2'-(1,4-phenylene)bis[5-methyl-, tetramethyl ester(110699-33-7)
EPA Substance Registry System: 3,4-Thiophenedicarboxylic acid, 2,2'-(1,4-phenylene)bis[5-methyl-, tetramethyl ester(110699-33-7)

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: 110699-33-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 110699-33-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,6,9 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 110699-33:
(8*1)+(7*1)+(6*0)+(5*6)+(4*9)+(3*9)+(2*3)+(1*3)=117
117 % 10 = 7
So 110699-33-7 is a valid CAS Registry Number.

110699-33-7Upstream product

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110699-33-7Relevant academic research and scientific papers

2,2'-Bridged Bis(thiophenes) from Bis(1,3-dithiolylium-4-olates) and Alkynes

Gotthardt, Hans,Pflaumbaum, Wolfgang,Gutowski, Peter

, p. 313 - 322 (2007/10/02)

The synthesis of the novel bis(1,3-dithiolylium-4-olates) 4a and b, which contain two masked thiocarbonyl ylide systems, is described.With dimethyl acetylenedicarboxylate, 4 or 5 react under elimination of COS to produce the 2,2'-bridged bis(thiophene) de

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