27767-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27767-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,7,6 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 27767-53:
(7*2)+(6*7)+(5*7)+(4*6)+(3*7)+(2*5)+(1*3)=149
149 % 10 = 9
So 27767-53-9 is a valid CAS Registry Number.