5866-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5866-89-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,8,6 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5866-89:
(6*5)+(5*8)+(4*6)+(3*6)+(2*8)+(1*9)=137
137 % 10 = 7
So 5866-89-7 is a valid CAS Registry Number.