174215-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 174215-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,4,2,1 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 174215-83:
(8*1)+(7*7)+(6*4)+(5*2)+(4*1)+(3*5)+(2*8)+(1*3)=129
129 % 10 = 9
So 174215-83-9 is a valid CAS Registry Number.