108643-82-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108643-82-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,6,4 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 108643-82:
(8*1)+(7*0)+(6*8)+(5*6)+(4*4)+(3*3)+(2*8)+(1*2)=129
129 % 10 = 9
So 108643-82-9 is a valid CAS Registry Number.