135897-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135897-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,8,9 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 135897-91:
(8*1)+(7*3)+(6*5)+(5*8)+(4*9)+(3*7)+(2*9)+(1*1)=175
175 % 10 = 5
So 135897-91-5 is a valid CAS Registry Number.