21471-88-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21471-88-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,7 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21471-88:
(7*2)+(6*1)+(5*4)+(4*7)+(3*1)+(2*8)+(1*8)=95
95 % 10 = 5
So 21471-88-5 is a valid CAS Registry Number.