1018978-81-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1018978-81-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,8,9,7 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1018978-81:
(9*1)+(8*0)+(7*1)+(6*8)+(5*9)+(4*7)+(3*8)+(2*8)+(1*1)=178
178 % 10 = 8
So 1018978-81-8 is a valid CAS Registry Number.