186981-42-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186981-42-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,9,8 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 186981-42:
(8*1)+(7*8)+(6*6)+(5*9)+(4*8)+(3*1)+(2*4)+(1*2)=190
190 % 10 = 0
So 186981-42-0 is a valid CAS Registry Number.