Abstract:
An affinity ligand-matrix conjugate comprises the matrix and conjugated thereto by the group Z, a ligand having general formula (I): wherein one X is N and the other X is N, CCL or CCn; A1 and A2 are each independently O, S or N—R1 and R1 is H, C1-6 alkyl, C1-6 hydroxyalkyl, benzyl or β-phenylethyl; B1 and B2 are each independently an optionally substituted hydrocarbon linkage containing from 1 to 10 carbon atoms; D1 is H or a primary amino, secondary amino, tertiary amino, quaternary ammonium, imidazole, guanidine or amidino group; and D2 is a secondary amino, tertiary amino, quaternary ammonium, imadazole, guanidine or amidino group; or B2-D2 is —CHCOOH—(CH2)3-4—NH2; and p is 0 or 1. Such conjugates are useful for the separation, isolation, purification, characterization, identification or quantification of an endotoxin.
Abstract:
The compounds of the s-triazine series of formula I ##STR1## wherein the symbols R.sub.1, R.sub.2, R.sub.3, X and n possess the significances given in claim 1, are eminently suitable, when applied to textile material, as UV-absorbers, as resist agents for anionic dyes, and as stain blockers.
Abstract:
The invention relates to dye mixtures which contain dyes of the formulae ##STR1## and to dyes of the formula ##STR2## in which A.sub.1, A.sub.2, A.sub.3, B, B.sub.1, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, Z.sub.1, Z.sub.2, X.sub.1, X.sub.2 and X.sub.3 are as defined in claim 1.The dyes and dye mixtures are distinguished by generally good properties and produce dyeings and prints having good wet and light fastness properties.
Abstract:
The invention relates to compounds of formula ##STR1## wherein the variables are as claimed in the claims. The compounds are suitable as UV absorbers for the photochemical stabilisation of undyed or dyed cellulosic fibre materials for enhancing their sun protection factor.
Abstract:
The invention relates to reactive-group-containing monoazo dyestuffs of formula (I), their salts or mixtures thereof, wherein R.sub.1 signifies hydrogen, methyl, methoxy or ethoxy, R.sub.2 signifies hydrogen, methyl, NHCONH.sub.2 or NHCOCH.sub.3, RG signifies (a), (b) or (c), X signifies hydrogen or chlorine, Z signify a group --CH=CH.sub.2, --CH.sub.2 CH.sub.2 W or mixtures thereof wherein W is a leaving group removable by alkali and --SO.sub.2 --Z may be bonded in a meta- or para-position with respect to the azo group. These compounds are useful as reactive dyestuffs in printing or dyeing hydroxy-group-containing or nitrogen-containing organic substrates.
Abstract:
A compound of the Formula (1) and salts thereof: ##STR1## wherein: R.sup.1 and R.sup.2 are each independently optionally substituted alkyl;R.sup.3 is H or optionally substituted alkyl;X is a labile atom or group;Y is a labile atom or group or a group of formula ##STR2## or --OR.sup.5 ; R.sup.4 is H or alkyl;R.sup.5 is H or optionally substituted alkyl or aryl; andm and n each independently have a value of 0 or 1.The compounds are useful for the coloration of textile materials.
Abstract:
Water-soluble monoazo compounds of the formula ##STR1## are described, suitable as fiber-reactive dyes for dyeing hydroxy- and/or carboxamido-containing material, in particular fiber material, such as wool and cellulose fiber materials, in which D is phenylene which can be substituted by 1 or 2 substituents customary in diazo components of fiber-reactive dyes and/or by a group of the formula Y--SO.sub.2 --(CH.sub.2).sub.m -- where Y has one of the meanings given below and m is the number 1 or 2, or is naphthylene which can be substituted by 1 or 2 substituents customary in diazo components of fiber-reactive dyes, or is benzothiazol-2-yl containing the group aforementioned Y--SO.sub.2 --(CH.sub.2).sub.n -- bonded to the carbocyclic ring thereof and can be substituted by a further substituent customary in fiber-reactive dyes, n is the number zero, 1 or 2, the group Y-SO.sub.2 -- is a fiber-reactive group from the vinylsulfonyl series, M is hydrogen or the mole equivalent of a metal, such as, in particular, an alkali metal, and the group --NR.sup.1 R.sup. 2 represents an amino group optionally substituted by lower alkyl and/or phenyl, which lower alkyl and phenyl may be substituted by substituents customary for fiber-reactive dyes.
Abstract:
2,4,6-trifluoro-5-chloro-pyrimidine and the aqueous solution of a salt of 2-amino-5-aminomethyl-naphthalene-1-sulphonic acid are simultaneously metered into a reactor in approximately equimolar amounts and afford a valuable intermediate for the preparation of high-purity dyes.
Abstract:
An ultraviolet radiation absorbing agent for bonding to an ocular lens. The agent has the formulaA--NH--Bwherein A is an ultraviolet absorbing compound and B is a specific reactive group or a moiety containing reactive group.
Abstract:
There are described anthraquinone compounds containing a radical of the formula ##STR1## where M is hydrogen, an alkali metal or the mole equivalent of an alkaline earth metal,X is an alkali-detachable radical, such as fluorine or chlorine,R.sup.1 is hydrogen or alkyl of 1 to 4 carbon atoms,R.sup.2 is hydrogen or alkyl of 1 to 4 carbon atoms,R.sup.A is hydrogen, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms, andR.sup.B is hydrogen, chlorine, bromine or alkoxy of 1 to 4 carbon atoms.The anthraquinone compounds have fiber-reactive properties and are used as dyes for dyeing and printing hydroxy--and/or carboxamido-containing material, in particular fiber material, for example cellulose fiber materials, wool and synthetic polyamide.