3953-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3953-05-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,5 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 3953-05:
(6*3)+(5*9)+(4*5)+(3*3)+(2*0)+(1*5)=97
97 % 10 = 7
So 3953-05-7 is a valid CAS Registry Number.