285143-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 285143-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,5,1,4 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 285143-13:
(8*2)+(7*8)+(6*5)+(5*1)+(4*4)+(3*3)+(2*1)+(1*3)=137
137 % 10 = 7
So 285143-13-7 is a valid CAS Registry Number.