1686128-01-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1686128-01-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,8,6,1,2 and 8 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1686128-01:
(9*1)+(8*6)+(7*8)+(6*6)+(5*1)+(4*2)+(3*8)+(2*0)+(1*1)=187
187 % 10 = 7
So 1686128-01-7 is a valid CAS Registry Number.