21272-78-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21272-78-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,7 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21272-78:
(7*2)+(6*1)+(5*2)+(4*7)+(3*2)+(2*7)+(1*8)=86
86 % 10 = 6
So 21272-78-6 is a valid CAS Registry Number.