566905-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 566905-98-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,6,6,9,0 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 566905-98:
(8*5)+(7*6)+(6*6)+(5*9)+(4*0)+(3*5)+(2*9)+(1*8)=204
204 % 10 = 4
So 566905-98-4 is a valid CAS Registry Number.