The CAS Registry Mumber 42046-35-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,0,4 and 6 respectively; the second part has 2 digits, 3 and 5 respectively. Calculate Digit Verification of CAS Registry Number 42046-35: (7*4)+(6*2)+(5*0)+(4*4)+(3*6)+(2*3)+(1*5)=85 85 % 10 = 5 So 42046-35-5 is a valid CAS Registry Number.
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(D2962005) Dosulepin impurity A European Pharmacopoeia (EP) Reference Standard