4253-05-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4253-05-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,5 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4253-05:
(6*4)+(5*2)+(4*5)+(3*3)+(2*0)+(1*5)=68
68 % 10 = 8
So 4253-05-8 is a valid CAS Registry Number.