1378898-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1378898-81-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,7,8,8,9 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1378898-81:
(9*1)+(8*3)+(7*7)+(6*8)+(5*8)+(4*9)+(3*8)+(2*8)+(1*1)=247
247 % 10 = 7
So 1378898-81-7 is a valid CAS Registry Number.