21127-78-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21127-78-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,2 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21127-78:
(7*2)+(6*1)+(5*1)+(4*2)+(3*7)+(2*7)+(1*8)=76
76 % 10 = 6
So 21127-78-6 is a valid CAS Registry Number.