564489-44-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 564489-44-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,6,4,4,8 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 564489-44:
(8*5)+(7*6)+(6*4)+(5*4)+(4*8)+(3*9)+(2*4)+(1*4)=197
197 % 10 = 7
So 564489-44-7 is a valid CAS Registry Number.