102641-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102641-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,6,4 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 102641-42:
(8*1)+(7*0)+(6*2)+(5*6)+(4*4)+(3*1)+(2*4)+(1*2)=79
79 % 10 = 9
So 102641-42-9 is a valid CAS Registry Number.