156884-88-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156884-88-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,8,8 and 4 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 156884-88:
(8*1)+(7*5)+(6*6)+(5*8)+(4*8)+(3*4)+(2*8)+(1*8)=187
187 % 10 = 7
So 156884-88-7 is a valid CAS Registry Number.