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346717-67-7

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346717-67-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 346717-67-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,6,7,1 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 346717-67:
(8*3)+(7*4)+(6*6)+(5*7)+(4*1)+(3*7)+(2*6)+(1*7)=167
167 % 10 = 7
So 346717-67-7 is a valid CAS Registry Number.

346717-67-7Relevant articles and documents

Polycyclic N-heterocyclic compounds. 57 Syntheses of fused furo(or thieno)[2,3-b]pyridine derivatives via smiles rearrangement and cyclization

Hirota, Takashi,Tomita, Kei-Ichiroh,Sasaki, Kenji,Okuda, Kensuke,Yoshida, Masahiko,Kashino, Setsuo

, p. 741 - 752 (2007/10/03)

An efficient methodology for the synthesis of thieno[2,3-c][2,7]-naphthyridine (6), thieno[2,3-c]isoquinoline (11), furo[2,3-c]isoquinoline (14), [1]benzothieno[3,2-d]thieno[2,3-b]pyridine (21), and [1]benzothieno[3,2-d]furo-[2,3-b]pyridine (26) skeletons from 4-[o-cyanoarylthio(or oxy)]butyronitriles with base via Smiles type rearrangement reaction followed by the cyclization is described.

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