78775-72-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78775-72-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,7,7 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 78775-72:
(7*7)+(6*8)+(5*7)+(4*7)+(3*5)+(2*7)+(1*2)=191
191 % 10 = 1
So 78775-72-1 is a valid CAS Registry Number.