1055421-92-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1055421-92-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,5,5,4,2 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1055421-92:
(9*1)+(8*0)+(7*5)+(6*5)+(5*4)+(4*2)+(3*1)+(2*9)+(1*2)=125
125 % 10 = 5
So 1055421-92-5 is a valid CAS Registry Number.