277745-50-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 277745-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,7,7,4 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 277745-50:
(8*2)+(7*7)+(6*7)+(5*7)+(4*4)+(3*5)+(2*5)+(1*0)=183
183 % 10 = 3
So 277745-50-3 is a valid CAS Registry Number.