90771-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90771-99-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,7 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 90771-99:
(7*9)+(6*0)+(5*7)+(4*7)+(3*1)+(2*9)+(1*9)=156
156 % 10 = 6
So 90771-99-6 is a valid CAS Registry Number.