4217-06-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4217-06-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,1 and 7 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4217-06:
(6*4)+(5*2)+(4*1)+(3*7)+(2*0)+(1*6)=65
65 % 10 = 5
So 4217-06-5 is a valid CAS Registry Number.