181996-82-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181996-82-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,9,9 and 6 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 181996-82:
(8*1)+(7*8)+(6*1)+(5*9)+(4*9)+(3*6)+(2*8)+(1*2)=187
187 % 10 = 7
So 181996-82-7 is a valid CAS Registry Number.