216435-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216435-65-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,4,3 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 216435-65:
(8*2)+(7*1)+(6*6)+(5*4)+(4*3)+(3*5)+(2*6)+(1*5)=123
123 % 10 = 3
So 216435-65-3 is a valid CAS Registry Number.