1021230-54-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1021230-54-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,1,2,3 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1021230-54:
(9*1)+(8*0)+(7*2)+(6*1)+(5*2)+(4*3)+(3*0)+(2*5)+(1*4)=65
65 % 10 = 5
So 1021230-54-5 is a valid CAS Registry Number.