22977-80-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22977-80-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,9,7 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 22977-80:
(7*2)+(6*2)+(5*9)+(4*7)+(3*7)+(2*8)+(1*0)=136
136 % 10 = 6
So 22977-80-6 is a valid CAS Registry Number.