Detail of "88-50-6"

Reference

Water-soluble monoazo compounds and their use as dyes in dyeing printing textile materials, as well as the amine intermediates

Schwander, Hansrudolf (Ciba-Geigy A.-G., Switz.). Eur. Pat. Appl. EP 26414 08 Apr 1981, 85 pp. (German). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C09B062-085; D06P001-382; C09B029-08; D06P001-39. PRIORITY: CH 79-8604 790924. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Polyamide and wool dyes of general structure I are prepd., where Z = arom. or heterocyclic diazo component residue; R and R1 = C1-4 alkyl; R2 and R3 = alkoxy, alkylamino, arylamino, halogen, N-alkyl-N-arylamino, dialkylamino, alkylthio, cyclohexyloxy, N-alkyl-N-cyclohexylamino, or cyclohexylamino; M = H or cation; m = 0 or 1; and n = 0, 1, or 2 (n + n = 1-2). I give fast red or orange dyeings when applied from weakly acidic baths. Thus, diazotization of 2,5,4-Cl2(HO3S)C6H2NH2 [88-50-6] and coupling with 2-chloro-4-[3-(diethylamino)anilino]-6-isopropoxy-s-triazine [78328-17-3] (from 3-Et2NC6H4NH2 [26513-20-2] and 2,4-dichloro-6-isopropoxy-s-triazine [6684-27-1]) gave II [78327-98-7], a light-and wetfast red dye for polyamide textiles. Numerous other I and anilinotriazine couplers were similarly prepd.

Phenylazoaminophenylpyrazole acid dye solutions containing two nonionic surfactants

Phenylazoaminophenylpyrazole acid dye solutions containing two nonionic surfactants. Kilmurry, Lindsay; Urion, Howard Kirby (du Pont de Nemours, E. I., and Co., USA). U.S. US 4043752 23 Aug 1977, 6 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: D06P001-06. NCL: 008041000B. APPLICATION: US 75-641373 17 Dec 1975. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Dye solns. having excellent Kusters dye bath stability and storage stability comprise I(as diethanolamine-triisopropanolamine salt) 10-20, BuOH [71-36-3] 15-30, ethylene glycol (II) [107-21-1] 10-20, ethylene oxide-propylylene oxide copolymer (III) [9003-11-6] 10-20, an ethoxylated C16-18 tallow amine (IV) 5-10, and H2O 0-50 wt.%. I is prepd. by diazotizing 2,5-dichloroaniline-4-sulfonic acid [88-50-6] (wet paste) and coupling with 5-amino-3-methyl-1-(p-chlorophenyl)pyrazole [40401-39-6] in the presence of BuOH, II, and optionally III, adjusting the pH with the alkanolamines, and finally adding IV and optionally III.