6559-40-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6559-40-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,5 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6559-40:
(6*6)+(5*5)+(4*5)+(3*9)+(2*4)+(1*0)=116
116 % 10 = 6
So 6559-40-6 is a valid CAS Registry Number.