Cas 503616-03-3,2-methyl-2,3-dihydro-thieno[3,4-<i>b</i>][1,4]dioxine-5,7-dicarboxylic acid diethyl ester

503616-03-3

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Basic information

Product Name: 2-methyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid diethyl ester
Synonyms: 2-methyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid diethyl ester
CAS NO:503616-03-3
Molecular Formula:
Molecular Weight: 300.332
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-methyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid diethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: 2-methyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid diethyl ester(503616-03-3)
EPA Substance Registry System: 2-methyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid diethyl ester(503616-03-3)

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: 503616-03-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 503616-03-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,6,1 and 6 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 503616-03:
(8*5)+(7*0)+(6*3)+(5*6)+(4*1)+(3*6)+(2*0)+(1*3)=113
113 % 10 = 3
So 503616-03-3 is a valid CAS Registry Number.

503616-03-3Upstream product

503616-03-3Downstream Products

503616-03-3Relevant academic research and scientific papers

Efficient synthesis of 3,4-ethylenedioxythiophenes (EDOT) by Mitsunobu reaction

Caras-Quintero, Dolores,Bauerle, Peter

, p. 2690 - 2691 (2002)

Using the Mitsunobu reaction as a key step, a general and efficient method for the synthesis of EDOT monomers has been developed. Novel substituted EDOTs and the first chiral derivatives were generated in high yields.

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