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109216-67-3

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109216-67-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109216-67-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,1 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 109216-67:
(8*1)+(7*0)+(6*9)+(5*2)+(4*1)+(3*6)+(2*6)+(1*7)=113
113 % 10 = 3
So 109216-67-3 is a valid CAS Registry Number.

109216-67-3Relevant articles and documents

Intramolecular Diels-Alder Reactions of 1,2,4-Triazines. A Facile Synthesis of Thienopyridines and 3,4-Dihydro-2H-thiopyranopyridines

Taylor, Edward C.,Macor, John E.

, p. 4280 - 4287 (2007/10/02)

Thienepyridines and 3,4-dihydro-2H-thiopyranopyridines have been prepared in high overall yields via intramolecular Diels-Alder reactions of properly substituted 1,2,4-triazine derivatives.A one-pot synthesis of 2,3-dihydrothienopyrid

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