The CAS Registry Mumber 79974-12-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,9,7 and 4 respectively; the second part has 2 digits, 1 and 2 respectively. Calculate Digit Verification of CAS Registry Number 79974-12: (7*7)+(6*9)+(5*9)+(4*7)+(3*4)+(2*1)+(1*2)=192 192 % 10 = 2 So 79974-12-2 is a valid CAS Registry Number.
Syntheses of α- and γ-substituted amides, peptides, and esters of methotrexate and their evaluation as inhibitors of folate metabolism
Piper,Montgomery,Sirotnak,Chello
, p. 182 - 187 (2007/10/02)
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