1509897-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1509897-31-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,0,9,8,9 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1509897-31:
(9*1)+(8*5)+(7*0)+(6*9)+(5*8)+(4*9)+(3*7)+(2*3)+(1*1)=207
207 % 10 = 7
So 1509897-31-7 is a valid CAS Registry Number.