83558-17-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83558-17-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,5 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 83558-17:
(7*8)+(6*3)+(5*5)+(4*5)+(3*8)+(2*1)+(1*7)=152
152 % 10 = 2
So 83558-17-2 is a valid CAS Registry Number.