76905-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76905-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,9,0 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 76905-90:
(7*7)+(6*6)+(5*9)+(4*0)+(3*5)+(2*9)+(1*0)=163
163 % 10 = 3
So 76905-90-3 is a valid CAS Registry Number.