Cas 1335212-86-6,ethyl 2-benzoylthiophene-3-carboxylate

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Check Digit Verification of cas no

The CAS Registry Mumber 1335212-86-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,5,2,1 and 2 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1335212-86:
(9*1)+(8*3)+(7*3)+(6*5)+(5*2)+(4*1)+(3*2)+(2*8)+(1*6)=126
126 % 10 = 6
So 1335212-86-6 is a valid CAS Registry Number.

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1335212-86-6Relevant articles and documents

Synthesis of 2,3-disubstituted thiophenes from 2-aryl-3-nitro-cyclopropane-1,1-dicarboxylates and 1,4-dithiane-2,5-diol

Selvi, Thangavel,Vanmathi, Govindhraj,Srinivasan, Kannupal

, p. 49326 - 49329 (2015)

A two-step synthesis of 2,3-disubstituted thiophenes from trans-2-aryl-3-nitrocyclopropane-1,1-dicarboxylates and 1,4-dithiane-2,5-diol is described. The nitrocyclopropane dicarboxylates when treated with boron trifluoride etherate formed aroylmethylidene

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1335212-86-6