The CAS Registry Mumber 1334378-48-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,4,3,7 and 8 respectively; the second part has 2 digits, 4 and 8 respectively. Calculate Digit Verification of CAS Registry Number 1334378-48: (9*1)+(8*3)+(7*3)+(6*4)+(5*3)+(4*7)+(3*8)+(2*4)+(1*8)=161 161 % 10 = 1 So 1334378-48-1 is a valid CAS Registry Number.
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(35383) Sulfadimethoxine-(phenyl-13C6) VETRANAL™, analytical standard