1009434-93-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1009434-93-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,9,4,3 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1009434-93:
(9*1)+(8*0)+(7*0)+(6*9)+(5*4)+(4*3)+(3*4)+(2*9)+(1*3)=128
128 % 10 = 8
So 1009434-93-8 is a valid CAS Registry Number.