摘要:
Disclosed herein are isotopically labeled calcofluor derivatives and uses of such to detect fungi, such as filamentous fungi, including Aspergillus species, such as by positron emission tomography (PET) scanning. In some examples, the disclosed compounds have a formula of wherein R1 is an amine, a hydroxyl group, a sulfide, a carboxylic acid, an amide, an alkyl, or aryl; R2 is —NHC(O)—R3-L or —C(O)NH—R3-L, wherein R3 is an aryl or an aliphatic group (such as alkyl); each R4 independently may be selected from halogen, aliphatic (such as alkyl), aryl, amine, hydroxyl, haloalkyl, carboxylic acid, amide, aralkyl, cyano, ester, thiol, thioether, or alkoxy; each R5 independently may be selected from hydrogen, aralkyl, alkyl, or aryl, with any one of the aralkyl, alkyl, or aryl groups optionally being substituted with any one of the substituents provided for R4; each n independently is 1, 2, 3, 4, or 5; and L is 18F or a chelator capable of chelating a radiolabel (such as chelators for [18F]AlF, 64Cu, 68Ga), 1,4,7,10-tetraazacyclododecane-tetraacetic acid (DOTA) or 1,4,7-triazacyclononane-triacetic acid (NOTA).
摘要:
The invention is directed to latent reactive and polymerizable derivatives of fluorescent stilbene-based compounds. The compounds can be used to provide articles with a fluorescence property, such as medical devices (e.g., catheters). The fluorescent compounds can be used in association with polymers, or can be incorporated into polymers, and the polymers used in a coating composition on the article surface. The compounds allow for visual or machine inspection of coating properties such as uniformity of coverage.
摘要:
A method for the fluorescent whitening of cotton in a discontinuous process comprising contacting the cotton, I an aqueous bath having a pH value of 6 or less, with one or more compounds of the Formula (I) wherein R1 represents an —SO2R3, —SOR3, CO2M, —CO2R3, —CONR3R4, —CN or —NO2 substituent, R2 is —NH2, —NH(C1-C4alkyl), —N(C1-C4alkyl)2, —NH(C2-C4hydroxyalkyl), —N(C2-C4hydroxyalkyl)2, —NH(C1-C4alkoxy)(C1-C4alkyl), —N[(C1-C4alkoxy)(C1-C4alkyl)]2, NHC2—C4alkylsulphonic acid, morpholineo, piperidino pyrrolidino, an amino acid or amino acid amide residue from which a hydrogen atom on the amino group has been removed, —OC1-C4alkyl or —OC1-C4hydroxyalkyl, R3 and R4 each, independently, represent hydrogen, C1-C4alkyl, C2-C4hydroxyalkyl or C1-C4alkoxyC1-C4alkyl and M is H, Na, Li, K, Ca, Mg, ammonium, or ammonium that is mono-, di-, tri- or tetrasubsituted by C1-C4alkyl, C2-C4hydroxyalkyl or a mixture thereof, some of which are new
摘要:
A process for improving the sun protection factor (SPF) of cellulosic fibre materials and blends thereof, which comprises contacting said materials with at least one compound of the formula (1) according to claim 1.
摘要:
In the preparation of substituted 4,4'-diaminostilbene-2,2'-disulfonic acid salts a clear increase in the reaction rate may be achieved by carrying out the reaction of the tetrachlorine derivative (III) with the aniline (IV) in the presence of the amine (VI) as acid-absorber.
摘要:
The present invention provides a compound having the formula: ##STR1## in which M is hydrogen, sodium, potassium, calcium, magnesium, ammonium, mono-, di-, tri- or tetra-C.sub.1 -C.sub.4 alkylammonium, mono-, di- or tri-C.sub.1 -C.sub.4 hydroxyalkylammonium or ammonium that is di- or tri-substituted by a mixture of C.sub.1 -C.sub.4 alkyl and C.sub.1 -C.sub.4 hydroxyalkyl groups; R.sub.1 is a group having the formula: ##STR2## in which M has its previous significance and n is 1 or 2; and R.sub.2 is O--C.sub.1 -C.sub.12 alkyl or N(R.sub.3)(R.sub.4) in which R.sub.3 and R.sub.4, independently, are hydrogen, C.sub.1 -C.sub.12 alkyl or C.sub.1 -C.sub.4 hydroxyalkyl, or R.sub.3 and R.sub.4, together with the nitrogen atom, are the atoms required to form a pyrrolidine, piperidine or morpholine group.The compounds of formula (1) are particularly useful as fluorescent whitening agents for cotton in discontinuous processes, in the course of which an acidic treatment, especially a finishing treatment using a polymer resin, occurs.
摘要:
A method for removing non-fluorescent triazine derivative impurities having the structural formula: ##STR1## wherein R.sub.1 is a hydroxy group or a halogen atom,R.sub.2 is a hydroxy group or the group --NR.sub.4 R.sub.5, each ofR.sub.4 and R.sub.5 being a hydrogen atom, alkyl, substituted alkyl, aryl or substituted aryl group, or R.sub.4 or R.sub.5 being combined in a heterocyclic ring, andR.sub.3 is an alkyl, substituted alkyl, aryl or substituted aryl group,From fluorescent agents belonging to the class of compounds of 4,4'-di(sym-triazinylamino) stilbene-2,2'- disulphonic acids and salts thereof, by washing said fluorescent agent with a dilute aqueous solution of an alkali metal hydroxide under atmospheric pressure and at a temperature not exceeding 75.degree. C.
摘要:
Novel crystalline needle forms of the fluorescent compounds disodium 4,4'-bis(4-anilino-6-morpholino-s-triazin-2-ylamino)-2,2'-stilbenedisulfonate and disodium 4,4'-bis(4,6-dianilino-s-triazin-2-ylamino)-2,2'-stilbenedisulfonate, useful as optical brightening agents, particularly when incorporated into detergent compositions. The novel crystalline forms are prepared by heating the compound in an aqueous alkaline medium containing excess amine reactant.
摘要:
THERE ARE DISCLOSED BIOCIDAL COMPOUNDS OF THE FORMULA:
((4-((V,Z-S-TRIAZINYL)-NH-),X-PHENYL)-W-)2-
W IS A MONOVALENT BOND OR -CH=CH-; X IS BYDROGEN, COOR, SO3R, COOME/2 OR SO3ME/2;
V IS (3-HO,4-(ME/2-OOC-)PHENYL)-O- OR
(3-(ME/2-OOC-),4-HO-PHENYL)-NH-;
Z IS R1-N(-R2)-, (3-HO,4-(ME/2-OOC-)PHENYL)-O-, OR
(3-HO,4-(ME/2-OOC-)PHENYL)-NH-
WHEREIN R IS AN ALKALI METAL SUCH AS K OR NA: R1 IS HYDROGEN, LOWER ALKYL OR HYDROXYL LOWER ALKYL; R2 IS HYDROGEN, LOWER ALKYL, HYDROXY LOWER ALKYL, ALKYLENECOOR, ALKYLENE-SO3R, ALKYLENE-COOME/2 OR ALKYLENESO3ME/2; ME IS A METAL SUCH AS CU++ OR ZN++; AND AT LEAST ONE OF X AND Z HAS A FREE WATER SOLUBLIZING SULFONIC OR CARBOXYLIC ACID GROUP. THE COMPOUNDS ARE PARTICULARLY USEFIL AS FINGICIDES AND BACTERICIDES.