1216-47-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1216-47-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,1 and 6 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1216-47:
(6*1)+(5*2)+(4*1)+(3*6)+(2*4)+(1*7)=53
53 % 10 = 3
So 1216-47-3 is a valid CAS Registry Number.