1277-51-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1277-51-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,7 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1277-51:
(6*1)+(5*2)+(4*7)+(3*7)+(2*5)+(1*1)=76
76 % 10 = 6
So 1277-51-6 is a valid CAS Registry Number.