27656-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27656-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,6,5 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 27656-89:
(7*2)+(6*7)+(5*6)+(4*5)+(3*6)+(2*8)+(1*9)=149
149 % 10 = 9
So 27656-89-9 is a valid CAS Registry Number.