Heterocyclic azo compounds containing a quaternated hydrazide group
US3945991A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1974 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Aug 5, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B69/002
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A water-soluble basic dyestuff which corresponds to the formula EQU (A-Q.sup.+) X.sup.-, in which A represents the radical of a monoazo- or disazo dyestuff which may contain no other substituents than lower alkyl, trifluoromethyl, lower alkoxy, chlorine, bromine, cyano, nitro, phenylazo, lower alkoxycarbonyl, lower alkanecarbonyl, lower alkanesulfonyl, acylamino and sulfonic acid amide, or the radical of an amino- or hydroxyanthraquinone dyestuff which may contain no other substituents than lower alkyl, lower alkoxy, chlorine, bromine, cyano, nitro, lower alkoxycarbonyl, lower alkanecarbonyl, lower alkanesulfonyl, acylamino and sulfonic acid amide, or the radical of a styryl dyestuff which may contain no other substituents than lower alkyl, lower alkoxy, cyano and lower alkoxy carbonyl or the radical of a nitro dyestuff which may contain no other substituents than lower alkyl, lower alkoxy, chlorine, bromine, cyano, nitro, lower alkoxycarbonyl, lower alkanecarbonyl, lower alkanesulfonyl and sulfonic acid amide, Q represents a quaternated hydrazide group of the formula ##EQU1## wherein R.sub.1 represents lower alkyl or hydrogen, R.sub.2, R.sub.3 and R.sub.4 each represents lower alk…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.