562091-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 562091-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,6,2,0,9 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 562091-77:
(8*5)+(7*6)+(6*2)+(5*0)+(4*9)+(3*1)+(2*7)+(1*7)=154
154 % 10 = 4
So 562091-77-4 is a valid CAS Registry Number.