137028-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137028-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,2 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137028-80:
(8*1)+(7*3)+(6*7)+(5*0)+(4*2)+(3*8)+(2*8)+(1*0)=119
119 % 10 = 9
So 137028-80-9 is a valid CAS Registry Number.