859978-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 859978-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,9,7 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 859978-71:
(8*8)+(7*5)+(6*9)+(5*9)+(4*7)+(3*8)+(2*7)+(1*1)=265
265 % 10 = 5
So 859978-71-5 is a valid CAS Registry Number.