19957-27-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19957-27-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,5 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 19957-27:
(7*1)+(6*9)+(5*9)+(4*5)+(3*7)+(2*2)+(1*7)=158
158 % 10 = 8
So 19957-27-8 is a valid CAS Registry Number.