859983-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 859983-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,9,8 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 859983-40:
(8*8)+(7*5)+(6*9)+(5*9)+(4*8)+(3*3)+(2*4)+(1*0)=247
247 % 10 = 7
So 859983-40-7 is a valid CAS Registry Number.