686256-41-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 686256-41-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,6,2,5 and 6 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 686256-41:
(8*6)+(7*8)+(6*6)+(5*2)+(4*5)+(3*6)+(2*4)+(1*1)=197
197 % 10 = 7
So 686256-41-7 is a valid CAS Registry Number.