103345-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103345-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,3,4 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 103345-89:
(8*1)+(7*0)+(6*3)+(5*3)+(4*4)+(3*5)+(2*8)+(1*9)=97
97 % 10 = 7
So 103345-89-7 is a valid CAS Registry Number.