100342-98-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100342-98-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,3,4 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 100342-98:
(8*1)+(7*0)+(6*0)+(5*3)+(4*4)+(3*2)+(2*9)+(1*8)=71
71 % 10 = 1
So 100342-98-1 is a valid CAS Registry Number.