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Class Information
Number: 552/114
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Acyclic carbon bonded directly to three benzene rings or to two benzene rings and a cyclohexadienyl ring, which acyclic carbon may not be bonded to a fourth carbon (e.g., triphenylmethane dyestuffs, etc.) > Nitrogen bonded directly to one of the rings (e.g., malachite green, rosophenoline, etc.) > Nitrogen bonded directly to each of the rings (e.g., rosaniline, crystal violet, etc.)
Description: Compounds wherein each of the rings is bonded directly to nitrogen.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7097669 |
Colorant compositions |
Aug. 29, 2006 |
| 7094812 |
Colorant compositions |
Aug. 22, 2006 |
| 6533826 |
Method for producing aqueous solutions of cationic diarylmethane colorants and triarylmethane colorants |
Mar. 18, 2003 |
| 5837429 |
Pre-dyes, pre-dye compositions, and methods of developing a color |
Nov. 17, 1998 |
| 5792879 |
Preparation of DI-OR triarylmethane dyes by oxidation |
Aug. 11, 1998 |
| 5786132 |
Pre-dyes, mutable dye compositions, and methods of developing a color |
Jul. 28, 1998 |
| 5659053 |
Preparation of Di- or triarylmethane dyes by oxidation |
Aug. 19, 1997 |
| 5453522 |
Colorant for use in business recording |
Sep. 26, 1995 |
| 5347022 |
Preparation of DI- or triarylmethane dyes by oxidation |
Sep. 13, 1994 |
| 5334733 |
Substituted 1,1,1-triaryl-2,2,2-trifluoroethanes and processes for their synthesis |
Aug. 2, 1994 |
| 5273906 |
Protein staining compositions and methods |
Dec. 28, 1993 |
| 5210188 |
Dyestuffs for perfluoropolyoxyalkylenes and compositions based on perfluoropolyoxyalkylenes containing such dyestuffs |
May. 11, 1993 |
| 5198558 |
Process for the preparation of triphenylmethane dyes |
Mar. 30, 1993 |
| 5132439 |
Protein staining compositions and methods |
Jul. 21, 1992 |
| 5013857 |
Process for the preparation of sulpho-free triphenyl-methane dyestuffs |
May. 7, 1991 |
| 4824610 |
Colorants for ball-point pen and ribbon inks |
Apr. 25, 1989 |
| 4800043 |
Colorants for ball point pen and ribbon inks derived from pararosaniline process residue |
Jan. 24, 1989 |
| 4782175 |
Urethanes composed of aliphatic fluoroalcohols, isocyanates and aromatic compounds, a process for their preparation and their use |
Nov. 1, 1988 |
| 4766234 |
Urethanes which contain perfluoroalkyl groups, epichlorohydrin groups and dialcohol radicals, the preparation and use thereof |
Aug. 23, 1988 |
| 4632987 |
Process for the preparation of triarylmethane compounds |
Dec. 30, 1986 |
| 4533499 |
Process for the production of triaryl methane compounds |
Aug. 6, 1985 |
| 4340540 |
Preparation of basic triarylmethane dyestuffs |
Jul. 20, 1982 |
| 4321207 |
Process for preparing triarylmethane dyes |
Mar. 23, 1982 |
| 4318859 |
Process for the preparation of basic dyestuffs |
Mar. 9, 1982 |
| 4247470 |
Process for isolating triarylmethane dyestuffs |
Jan. 27, 1981 |
| 4211716 |
Process for isolating triarylmethane dyestuffs |
Jul. 8, 1980 |
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