216142-79-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216142-79-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,1,4 and 2 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 216142-79:
(8*2)+(7*1)+(6*6)+(5*1)+(4*4)+(3*2)+(2*7)+(1*9)=109
109 % 10 = 9
So 216142-79-9 is a valid CAS Registry Number.