216309-29-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216309-29-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,3,0 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 216309-29:
(8*2)+(7*1)+(6*6)+(5*3)+(4*0)+(3*9)+(2*2)+(1*9)=114
114 % 10 = 4
So 216309-29-4 is a valid CAS Registry Number.