1773489-72-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1773489-72-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,7,7,3,4,8 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1773489-72:
(9*1)+(8*7)+(7*7)+(6*3)+(5*4)+(4*8)+(3*9)+(2*7)+(1*2)=227
227 % 10 = 7
So 1773489-72-7 is a valid CAS Registry Number.