69905-84-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69905-84-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,9,0 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 69905-84:
(7*6)+(6*9)+(5*9)+(4*0)+(3*5)+(2*8)+(1*4)=176
176 % 10 = 6
So 69905-84-6 is a valid CAS Registry Number.