17986-54-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17986-54-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,8 and 6 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 17986-54:
(7*1)+(6*7)+(5*9)+(4*8)+(3*6)+(2*5)+(1*4)=158
158 % 10 = 8
So 17986-54-8 is a valid CAS Registry Number.