216753-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216753-18-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,7,5 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 216753-18:
(8*2)+(7*1)+(6*6)+(5*7)+(4*5)+(3*3)+(2*1)+(1*8)=133
133 % 10 = 3
So 216753-18-3 is a valid CAS Registry Number.