76553-50-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76553-50-9 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 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 76553-50:
(7*7)+(6*6)+(5*5)+(4*5)+(3*3)+(2*5)+(1*0)=149
149 % 10 = 9
So 76553-50-9 is a valid CAS Registry Number.