1538660-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1538660-99-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,3,8,6,6 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1538660-99:
(9*1)+(8*5)+(7*3)+(6*8)+(5*6)+(4*6)+(3*0)+(2*9)+(1*9)=199
199 % 10 = 9
So 1538660-99-9 is a valid CAS Registry Number.