1558682-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1558682-17-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,5,8,6,8 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1558682-17:
(9*1)+(8*5)+(7*5)+(6*8)+(5*6)+(4*8)+(3*2)+(2*1)+(1*7)=209
209 % 10 = 9
So 1558682-17-9 is a valid CAS Registry Number.