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Class Information
Number: 552/306
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Cyclohexadiene having atoms double bonded directly at the 1- and 4- positions (e.g., paraquinones, etc.) > Nitrogen bonded directly at the 2-, 3-, 5- or 6- position
Description: Compounds wherein nitrogen is bonded directly to any of the remaining positions of the cyclohexadiene ring (i.e., 2-, 3-, 5-, or 6- position).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6686484 |
Polycyclic aryl and heteroaryl substituted 1,4-quinones useful for selective inhibition of the coagulation cascade |
Feb. 3, 2004 |
| 5596098 |
Amino-quinones, and their use in providing corrosion resistance to metals |
Jan. 21, 1997 |
| 5283355 |
Benzoquinone compounds |
Feb. 1, 1994 |
| 5220042 |
1,4-benzoquinone derivatives and benzene derivatives, and process for preparing the same |
Jun. 15, 1993 |
| 5104874 |
Benzoquinone antiallergy and antinflammatory agents |
Apr. 14, 1992 |
| 4360469 |
Preparation of quinones by salcomine-catalyzed oxidation of phenols |
Nov. 23, 1982 |
| 4260749 |
Quaternary diaminobenzoquinones |
Apr. 7, 1981 |
| 4228259 |
Water-soluble cationic polymer dye compounds and process for producing the same |
Oct. 14, 1980 |
| 4202788 |
Stabilization of aqueous p-benzoquinones |
May. 13, 1980 |
| 4023926 |
Diaminobenzoquinones in hair dye compositions |
May. 17, 1977 |
| 3953874 |
Organic electronic rectifying devices |
Apr. 27, 1976 |
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