102153-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102153-34-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,1,5 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 102153-34:
(8*1)+(7*0)+(6*2)+(5*1)+(4*5)+(3*3)+(2*3)+(1*4)=64
64 % 10 = 4
So 102153-34-4 is a valid CAS Registry Number.