490-58-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 490-58-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,9 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 490-58:
(5*4)+(4*9)+(3*0)+(2*5)+(1*8)=74
74 % 10 = 4
So 490-58-4 is a valid CAS Registry Number.
InChI:InChI=1/C9H11N5O4/c1-2(15)5(16)3-7(17)12-6-4(11-3)8(18)14-9(10)13-6/h2,5,15-16H,1H3,(H4,10,12,13,14,17,18)