摘要:
The present invention provides methods, compositions, mixtures and kits utilizing deoxynucleoside triphosphates comprising a 3′-O position capped by a group comprising methylenedisulfide as a cleavable protecting group and a detectable label reversibly connected to the nucleobase of said deoxynucleoside. Such compounds provide new possibilities for future sequencing technologies, including but not limited to Sequencing by Synthesis.
摘要:
The present invention provides dye mixtures containing a dye of the formula (I) and a dye of the formulae (II) where Z is —CH═CH2 or —CH2CH2Z1 and Z1 is hydroxyl or an alkali-eliminable group; and M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal. The invention also relates to a process for their preparation and their use.
摘要:
An anthraquinonic dye of the formula ##STR1## is provided. When used as dichloric dyes in liquid crystalline color display elements, these dyes (1) have sufficient coloring ability in small amounts, (2) have a high dichloric ratio, (3) are fully soluble in liquid crystals, and (4) have excellent durability, are stable and do not degrade the performance of a display device upon long-term use.
摘要:
Acetylation of residual primary and secondary alkyl amine groups present in the structure of polymeric colorants and the acetylated colorant products are disclosed. The acetylation is a post production step. The acetylation improves the colorants' water solubility.
摘要:
Process for the production of .alpha.-(carboxyethylamino)anthraquinones by reacting an .alpha.-aminoanthraquinone with an alkenyl carboxylic acid in sulphuric acid medium containing boric acid, metaboric acid or boric oxide.
摘要:
A new class of heterocyclic compounds containing N and S in the basic skeleton and which are 5-aza-7-thiadibenzocrysene derivatives useful as dyes or as intermediates in the synthesis of dyes and pigments are disclosed, as well as a method of obtaining the same by reaction of o-aminothiophenol 2-hydroxy-1-azabenzanthrone or its derivatives.
摘要:
Improvement in the process for the production of anthraquinoneoxazoles of the formula:
IN WHICH R is 1-anthraquinonyl, 2-anthraquinonyl or 1,9anthrapyrimidyl-(2) which may bear amino, halogen, cyano or nitro as a substituent, by condensation of an ohaloacylaminoathraquinone of the formula:
IN WHICH Hal is chloro or bromo in the presence of a salt of a weak acid with a strong base while heating. The improvement consists in carrying out the condensation in a water-miscible strongly polar aprotic solvent.
摘要:
Greenish-blue to blue disperse diaminoanthraquinonedicarboximide dyes having good application and fastness properties on water swellable cellulosic or synthetic fibers or blends or mixtures thereof, for example, cotton fabrics and polyester/cotton blend fabrics, said dyes having the formula
WHEREIN ONE R is H and the other two are phenyl.
摘要翻译:具有在水溶胀性纤维素或合成纤维或其混合物或其混合物上具有良好应用和牢度性质的绿蓝色至蓝色分散的二氨基蒽醌二碳酰亚胺染料,例如棉织物和聚酯/棉混纺织物,所述染料具有式WHEREIN ONE R为 H,另外两个是苯基。
摘要:
PROCESS FOR PREPARING COMPOUNDS OF THE BENZOTHIOXANTHENE SERIES, WHEREIN CIOMPOUNDS OF THE 1-(2''-AMINOPHENYLMERCAPTO)-NAPHTHALENE SERIES OR OF THE 1-PHENYLMERCAPTO=8-AMINONAPHTHALENE SERIES ARE REACTED IN TERTIARY AMINES WITH COMPOUNDS YIELDING NITROSYL GROUPS AND THE DIAZNIUM COMPOUNDS SO OBTAINED ARE HEATED. THIS PROCESS IS SUITED FOR ALL COMPOUNDS WHICH CONTAIN THE BENZOTHIOXANTHENE RING, INDEPENDENTLY OF THEIR SUBSTIUENTS. THE PRODUCTS OBTAINED BY THIS PROCESS HAVE A MARKEDLY HIGHER PURITY AND ARE OBTAINED IN A HIGHER YIELD AS COMPARED TO OTHER PROCESSES.
IN WHICH R IS HYDROGEN, HALOGEN, ALKYL, ALOXY, A-HYDROXYETHYL, B-HYDDROXYETHYL, B-HYDROXYETHOXY, B,B-DICARBALKOXYETHYL OR CARBALKOXY AND N IS ONE OF THE INTEGERS, 1, 2 AND 3. THE DYES LINEAR POLYESTER FIBROUS MATERIAL GREENISH BLUE SHADES. THE DYEINGS HAVE EXCELLENT FASTNESS PROPERTIES.