389631-23-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 389631-23-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,9,6,3 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 389631-23:
(8*3)+(7*8)+(6*9)+(5*6)+(4*3)+(3*1)+(2*2)+(1*3)=186
186 % 10 = 6
So 389631-23-6 is a valid CAS Registry Number.