54778-85-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54778-85-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,7,7 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 54778-85:
(7*5)+(6*4)+(5*7)+(4*7)+(3*8)+(2*8)+(1*5)=167
167 % 10 = 7
So 54778-85-7 is a valid CAS Registry Number.