839686-74-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 839686-74-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,3,9,6,8 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 839686-74:
(8*8)+(7*3)+(6*9)+(5*6)+(4*8)+(3*6)+(2*7)+(1*4)=237
237 % 10 = 7
So 839686-74-7 is a valid CAS Registry Number.