1338257-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1338257-80-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,2,5 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1338257-80:
(9*1)+(8*3)+(7*3)+(6*8)+(5*2)+(4*5)+(3*7)+(2*8)+(1*0)=169
169 % 10 = 9
So 1338257-80-9 is a valid CAS Registry Number.