Detail of "145-49-3"

Reference

Anthraquinone disperse dyes

Anthraquinone disperse dyes. (Dainichiseika Color and Chemicals Mfg. Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58213048 A2 10 Dec 1983 Showa, 4 pp. (Japanese). (Japan). CODEN: JKXXAF. 9002-88-4 and 9002-86-2 are cas registry numbers of chemicals which are used as reagents here. CLASS: IC: C09B001-26; D06P001-20. APPLICATION: JP 82-96109 7 Jun 1982. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) The title dyes I (R = H, H2N, HO, halogen, O2N, Me, MeO, cyano; n = 1-3) were prepd. and used for dyeing polyester fibers and vinyl polymers. Thus, 1,5-diamino-4,8-dihydroxyanthraquinone [145-49-3] in 100% H2SO4 at 50-60° was stirred with N-methyloltetrachlorophthalimide [50667-60-2] for 12 h to give I (n = 3, 1-OH, 5-HO, 8-NH2) [89469-97-6], bright blue on polyester fiber, with lightfastness (JIS L 1044) 8 and sublimation fastness 5. .

The synthesis and dyeing properties of some benzamide anthraquinone dyes

The synthesis and dyeing properties of some benzamide anthraquinone dyes. Lin, Chung Hwa; Jaw, Duyh Jou; Liao, Shdng Kun (Grad. Sch. Text. Eng., Feng Chia Univ., Taichung, Taiwan). Fang Chih Kung Ch'eng Hsueh K'an, 10, 19-32 (Chinese) 1983. CODEN: FCKKDI. ISSN: 0254-6469. DOCUMENT TYPE: Journal CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Benzamide anthraquinone dyes were prepd. by treating 1-aminoanthraquinone [82-45-1], 1,4-diaminoanthraquinone [128-95-0], and 1,5-dihydroxy-4,8-diaminoanthraquinone [145-49-3] with BzCl [98-88-4]. The effects of crystallinity and particle size of these dyes on dyeability were discussed.