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2,5-bis-(4-chloro-phenyliminomethyleneamino)-thiophene-3,4-dicarboxylic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1027591-44-1

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1027591-44-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1027591-44-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,7,5,9 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1027591-44:
(9*1)+(8*0)+(7*2)+(6*7)+(5*5)+(4*9)+(3*1)+(2*4)+(1*4)=141
141 % 10 = 1
So 1027591-44-1 is a valid CAS Registry Number.

1027591-44-1Downstream Products

1027591-44-1Relevant academic research and scientific papers

Application of bis(iminophosphorane) in heterocyclic synthesis: New entries to symmetrically or unsymmetrically substituted thieno[2,3-d:5,4-d′] dipyrimidine-4,5(3H,6H)-diones

Ding, Ming-Wu,Xu, Sheng-Zhen,Zhao, Jun-Feng

, p. 8366 - 8371 (2007/10/03)

The bis(carbodiimides) 4, obtained from bis-aza-Wittig reactions of bis(iminophosphorane) 3 with 2 equiv of aromatic isocyanates, were reacted with secondary amine to give symmetrically substituted 2,7-diaminothieno[2,3-d:5,4- d′]dipyrimidine-4,5(3H,6H)-d

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