90137-70-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90137-70-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,3 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90137-70:
(7*9)+(6*0)+(5*1)+(4*3)+(3*7)+(2*7)+(1*0)=115
115 % 10 = 5
So 90137-70-5 is a valid CAS Registry Number.