1307498-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1307498-20-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,4,9 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1307498-20:
(9*1)+(8*3)+(7*0)+(6*7)+(5*4)+(4*9)+(3*8)+(2*2)+(1*0)=159
159 % 10 = 9
So 1307498-20-9 is a valid CAS Registry Number.