76551-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76551-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,5,5 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 76551-72:
(7*7)+(6*6)+(5*5)+(4*5)+(3*1)+(2*7)+(1*2)=149
149 % 10 = 9
So 76551-72-9 is a valid CAS Registry Number.