230953-34-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 230953-34-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,0,9,5 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 230953-34:
(8*2)+(7*3)+(6*0)+(5*9)+(4*5)+(3*3)+(2*3)+(1*4)=121
121 % 10 = 1
So 230953-34-1 is a valid CAS Registry Number.