20355-90-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20355-90-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,3,5 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20355-90:
(7*2)+(6*0)+(5*3)+(4*5)+(3*5)+(2*9)+(1*0)=82
82 % 10 = 2
So 20355-90-2 is a valid CAS Registry Number.