490-93-7 Usage
Explanation
Different sources of media describe the Explanation of 490-93-7 differently. You can refer to the following data:
1. The molecular formula represents the number of atoms of each element present in a molecule of the compound.
2. This is an alternative name for the compound, which is derived from its structure and functional groups.
3. The physical appearance of the compound, describing its color and state (crystalline solid).
4. The compound's ability to dissolve in water, which is an important property for its applications.
5. The temperature range at which the compound transitions from a solid to a liquid state.
6. The various industries in which the compound is used, highlighting its versatility in chemical reactions.
7. The compound's ability to participate in a variety of chemical reactions, making it valuable in different applications.
Appearance
White crystalline solid
Solubility
Soluble in water
Melting point
215-218°C
Applications
Synthesis of polymers, resins, and pharmaceutical compounds
Industrial and pharmaceutical sectors
Wide range of applications
Chemical properties
Versatile
Check Digit Verification of cas no
The CAS Registry Mumber 490-93-7 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, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 490-93:
(5*4)+(4*9)+(3*0)+(2*9)+(1*3)=77
77 % 10 = 7
So 490-93-7 is a valid CAS Registry Number.
490-93-7Relevant articles and documents
Poly(p-phenyleneamineimine): Synthesis and Comparison to Polyaniline
Wudl, F.,Angus, R. O.,Lu, F. L.,Allemand, P. M.,Vachon, D. J.,et al.
, p. 3677 - 3684 (1987)
We present a complete account of results on the preparation of a polymer which could only be a poly(p-phenyleneamineimine) (PPAI) and which, by several criteria, has the same properties of polyaniline (PANI).We also present detailed results of comparative studies of not only PANI with PPAI but of PANI with phenyl-capped octaaniline (COA), a discrete length, fully characterized molecule.Finally, we present support for the hypothesis that acid doping of PANI involves the proton induced spin unpairing mechanism for protonated quinoneimine moieties.We conclude that magnetic and transport data are qualitatively consistent with that of a Fermi"glass" model and not with that of a metal.
