1868年,德国化学家格雷贝(Carl Graebe)和李伯曼(Carl Liebermann)用从煤焦油中提炼出的蒽人工合成了茜素。工业上通常以蒽醌-β-磺酸、烧碱和氯酸钾或硝酸钾共热制得,也可由植物茜草的根部提取。
概述茜素亦称“1,2-二羟基蒽醌”,为橙色或红色三棱针状晶体,在乙醇中溶解,在水中微溶,不溶于氯仿。其碱性水溶液呈蓝色,溶于浓盐酸后呈棕色。与硝酸作用生成酞酸,与硫酸和二氧化锰反应可得1,2,4-三羟基蒽醌,也可被锌粉还原为蒽,并能与Zn/NH3生成3,4-二羟基蒽酮。茜素以葡萄糖苷、茜根酸的形式存在于茜草的根部。
茜素常用于棉的染色和印花,使用铝媒染剂时可得到鲜艳红色,用铬染剂媒染则获得红光棕色,铁媒染剂得紫色,锡媒染剂则为黄光红色。也适用于羊毛和蚕丝的染色以及制造茜素色淀。近年来,冰染染料已经取代了它的部分应用领域。此外,茜素还可作为酸碱指示剂(pH5.5(黄色)~6.1(红色)),用于铝、铟、汞等点滴试验的指示剂,并可用作神经组织和原生动物活体染色剂。
溶解度茜素容易升华,几乎不溶于水,在100g水中仅能溶解0.034g。它易溶于乙醇、乙醚、丙酮、苯及二硫化碳,并可与热甲醇无限溶解。不溶于氯仿,但可与吡啶无限溶解。
应用1,2-二羟基蒽醌自古以来就被用于纺织品染色。在组织学中,钙茜素或1,2-二羟基蒽醌化合物通常被称为“湖”或“络合物”。
制备以蒽醌-2-磺酸为原料,将其与50%的氢氧化钠溶液及硝酸钠一起加热至180~200℃,并在1.0MPa压力下反应20小时。将反应物用水稀释,并用硫酸调节pH值在1.2~2之间。过滤并用水洗涤滤渣至中性后干燥,可得粗制茜素。升华或在乙醇中重结晶精制后,可以得到更纯的茜素。
化学性质茜素为桔红色晶体或赭黄色粉末,熔点288-289℃,沸点430℃。它易溶于热甲醇,在25℃的乙醚中溶解。能溶于苯、冰醋酸和吡啶,微溶于水。
用途茜素用作染料中间体及酸碱指示剂,并用于合成酸性染料媒介红S-80等。其溶液也可作为酸碱指示剂(浓度为0.5%),pH变色范围为5.5(黄色)至6.8(红色),适用于铝、铟、汞、锌和锆的点滴试剂,同时还能用作神经组织和原生动物活体染色剂。
生产方法茜素在自然界中主要存在于茜草根部。将蒽醌-2-磺酸与苛性钠及氯酸钾或硝酸钾共熔,再将熔融物倾入热水中,并用盐酸沉淀茜素以提取之。具体步骤包括:9g氯酸钾、30g蒽醌-2-磺酸钠和110g氢氧化钠同溶于110ml水中,在压热釜中于170℃加热反应25小时后冷却。将反应物用水多次提取(每次150ml),过滤滤液并用盐酸酸化,冷却后吸滤析出的沉淀,洗涤后烘干,即可得到约20g茜素。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
媒染棕18 | anthragallol | 602-64-2 | C14H8O5 | 256.215 |
六羟基蒽醌 | rufigallol | 82-12-2 | C14H8O8 | 304.213 |
1-羟基-2-甲氧基蒽醌 | 1-hydroxy-2-methoxyanthraquinone | 6003-11-8 | C15H10O4 | 254.242 |
1-羟基蒽醌 | 1-hydroxyanthraquinone | 129-43-1 | C14H8O3 | 224.216 |
茜素 1-甲基醚 | 1-methylalizarin | 6170-06-5 | C15H10O4 | 254.242 |
2,3-二羥蒽醌 | hystazarin | 483-35-2 | C14H8O4 | 240.215 |
—— | 1,2-ethlenedioxyanthraquinone | 82074-09-7 | C16H10O4 | 266.253 |
2-羟基蒽醌 | 2-hydroxy-9,10-anthraquinone | 605-32-3 | C14H8O3 | 224.216 |
2-氯-1-羟基蒽醌 | 2-Chlor-1-hydroxy-anthrachinon | 35582-88-8 | C14H7ClO3 | 258.661 |
2,3-二甲氧基蒽醌 | 2,3-dimethoxy-anthraquinone | 22506-55-4 | C16H12O4 | 268.269 |
2-氨基-1-羟基蒽醌 | 2-amino-1-hydroxyanthracene-9,10-dione | 568-99-0 | C14H9NO3 | 239.23 |
9,10-二氧代-9,10-二氢蒽-1,2-二基二乙酸酯 | diacetylalizarin | 1629-51-2 | C18H12O6 | 324.29 |
—— | 2-ethoxy-9,10-anthraquinone | 22924-21-6 | C16H12O3 | 252.269 |
—— | 2,2'-oxydianthraquinone | 187729-11-9 | C28H14O5 | 430.416 |
—— | 2,3-dihydroanthra[2,3-b][1,4]dioxine-6,11-dione | 873981-48-7 | C16H10O4 | 266.253 |
—— | 2-(3,4-dihydroxybenzoyl)benzoic acid | 60541-97-1 | C14H10O5 | 258.23 |
3,4-二羟基-9,10-二氧代-9,10-二氢蒽-2-磺酸 | Alizarin S | 83-61-4 | C14H8O7S | 320.279 |
2-(3,4-二甲氧基苯甲酰基)苯甲酸 | 2-(3,4-dimethoxybenzoyl)benzoic acid | 51439-85-1 | C16H14O5 | 286.284 |
—— | 1-chloro-2-hydroxy-anthraquinone | 6471-81-4 | C14H7ClO3 | 258.661 |
—— | 1-amino-2-hydroxy-9,10-anthracenedione | 568-98-9 | C14H9NO3 | 239.23 |
1-氯-2-甲氧基蒽醌 | 1-chloro-2-methoxy-anthraquinone | 78728-48-0 | C15H9ClO3 | 272.688 |
蒽醌 | 9,10-phenanthrenequinone | 84-65-1 | C14H8O2 | 208.216 |
1,3-二溴-2-羟基蒽醌 | 1,3-dibromo-2-hydroxyanthraquinone | 861075-99-2 | C14H6Br2O3 | 382.008 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-羥蒽絳酚 | 1,2,5-trihydroxyanthraquinone | 6486-93-7 | C14H8O5 | 256.215 |
醌茜素 | 1,2,5,8-tetrahydroxy-anthraquinone | 81-61-8 | C14H8O6 | 272.214 |
羟基茜草素 | 1,2,4-trihydroxy-9,10-anthraquinone | 81-54-9 | C14H8O5 | 256.215 |
—— | 1,2-dihydroxy-anthrone | 52865-00-6 | C14H10O3 | 226.232 |
—— | 1,2,4,5,6,8-hexahydroxy-9,10-anthraquinone | 6373-24-6 | C14H8O8 | 304.213 |
1,2,3,4-四羟基蒽醌 | 1,2,3,4-Tetrahydroxy-anthrachinon | 60626-57-5 | C14H8O6 | 272.214 |
—— | 9,9-dihydro-1,2-dihydroxy-10-anthracenone | 86705-98-8 | C14H10O3 | 226.232 |
1-羟基-2-甲氧基蒽醌 | 1-hydroxy-2-methoxyanthraquinone | 6003-11-8 | C15H10O4 | 254.242 |
1-羟基蒽醌 | 1-hydroxyanthraquinone | 129-43-1 | C14H8O3 | 224.216 |
—— | 2-ethoxy-1-hydroxyanthraquinone | —— | C16H12O4 | 268.269 |
1-羟基-2-甲氧基-蒽酮 | 1-hydroxy-2-methoxy-anthrone | 86705-96-6 | C15H12O3 | 240.258 |
茜素 1-甲基醚 | 1-methylalizarin | 6170-06-5 | C15H10O4 | 254.242 |
—— | Alizarin-2-(β-hydroxy-ethyl)-ether | 22516-71-8 | C16H12O5 | 284.268 |
—— | 1-hydroxy-1-(2-propyn-1-yloxy)-9,10-anthraquinone | 1039513-67-1 | C17H10O4 | 278.264 |
1,2-二甲氧基-9,10-蒽醌 | alizarin dimethyl ether | 6003-12-9 | C16H12O4 | 268.269 |
—— | 4-hydroxy-3-methoxy-anthrone | 791788-38-0 | C15H12O3 | 240.258 |
—— | 3-Chlor-alizarin | 18084-25-8 | C14H7ClO4 | 274.66 |
—— | Alizarin-2-benzylether | 22516-62-7 | C21H14O4 | 330.34 |
—— | 2-(hex-5-enyloxy)-1-hydroxyanthracene-9,10-dione | 1610041-50-3 | C20H18O4 | 322.361 |
—— | 1-hydroxy-2-acetonyloxyanthraquinone | 1204905-36-1 | C17H12O5 | 296.279 |
—— | 2-((1-hydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yl)oxy)acetic acid | 72328-69-9 | C16H10O6 | 298.252 |
3-氨基-1,2-二羟基蒽-9,10-二酮 | 3-amino-1,2-dihydroxyanthraquinone | 3963-78-8 | C14H9NO4 | 255.23 |
1-羟基-9,10-二氧代-9,10-二氢-2-蒽基乙酸酯 | 1-hydroxy-2-acetoxy-9,10-anthraquinone | 40975-46-0 | C16H10O5 | 282.252 |
3-溴茜素 | 3-Bromoalizarin | 18084-26-9 | C14H7BrO4 | 319.111 |
1-羟基-2-甲基蒽醌 | 1-hydroxy-2-methyl-anthraquinone | 6268-09-3 | C15H10O3 | 238.243 |
—— | 4-Ethoxy-1,2-dihydroxyanthracene-9,10-dione | 1311164-29-0 | C16H12O5 | 284.268 |
洋地黄蒽醌 | digitolutein | 477-86-1 | C16H12O4 | 268.269 |
1,5-二甲氧基蒽醌 | 1,5-dimethoxy-anthraquinone | 6448-90-4 | C16H12O4 | 268.269 |
1,2-二乙氧基蒽-9,10-二酮 | 1,2-diethoxyanthracene-9,10-dione | 83584-93-4 | C18H16O4 | 296.323 |
3,4-二甲氧基-蒽酮 | 3,4-dimethoxy-anthrone | 857588-26-2 | C16H14O3 | 254.285 |
百眼藤醌 A | morindaparvin-A | 41621-32-3 | C15H8O4 | 252.226 |
—— | 2,3-dihydroxy-anthrone | 64817-80-7 | C14H10O3 | 226.232 |
—— | 4-Butoxy-1,2-dihydroxyanthracene-9,10-dione | 1311164-33-6 | C18H16O5 | 312.322 |
4-氯-1,2-二羟基蒽-9,10-二酮 | 4-chloroalizarin | 76364-83-5 | C14H7ClO4 | 274.66 |
—— | Butyric acid 1-hydroxy-9,10-dioxo-9,10-dihydro-anthracen-2-yl ester | 110349-96-7 | C18H14O5 | 310.306 |
—— | 1,2-ethlenedioxyanthraquinone | 82074-09-7 | C16H10O4 | 266.253 |
2-羟基蒽醌 | 2-hydroxy-9,10-anthraquinone | 605-32-3 | C14H8O3 | 224.216 |
—— | 4-[4-(3,4-Dihydroxy-9,10-dioxoanthracen-1-yl)oxybutoxy]-1,2-dihydroxyanthracene-9,10-dione | 1311164-37-0 | C32H22O10 | 566.521 |
—— | 4-[6-(3,4-Dihydroxy-9,10-dioxoanthracen-1-yl)oxyhexoxy]-1,2-dihydroxyanthracene-9,10-dione | 1311164-40-5 | C34H26O10 | 594.574 |
—— | 1,2-bis(prop-2-yn-1-yloxy)anthracene-9,10-dione | 1045-81-4 | C20H12O4 | 316.313 |
—— | 1,2-bis-allyloxyanthraquinone | 69193-47-1 | C20H16O4 | 320.345 |
—— | 1,2-Dihydroxy-4-octoxyanthracene-9,10-dione | 1311164-35-8 | C22H24O5 | 368.43 |
—— | 4-[8-(3,4-Dihydroxy-9,10-dioxoanthracen-1-yl)oxyoctoxy]-1,2-dihydroxyanthracene-9,10-dione | 1311164-42-7 | C36H30O10 | 622.628 |
—— | 1,2-bis-but-3-enyloxyanthraquinone | 932391-57-6 | C22H20O4 | 348.398 |
—— | 1,2-bis(trimethylsilyloxy)-9,10-anthraquinone | —— | C20H24O4Si2 | 384.579 |
—— | Octanoic acid 1-hydroxy-9,10-dioxo-9,10-dihydro-anthracen-2-yl ester | 110349-97-8 | C22H22O5 | 366.414 |
—— | ethyl 2-(9,10-dihydro-1-hydroxy-9,10-dioxoanthracen-2-yloxy)propionate | 1610041-44-5 | C19H16O6 | 340.332 |
—— | 1,2-bis(benzyloxy)anthracene-9,10-dione | 397845-45-3 | C28H20O4 | 420.464 |
—— | 1,2-bis[octadecyloxy]anthraquinone | 912278-50-3 | C50H80O4 | 745.183 |
—— | 1,2-bis(dodecycloxy)anthracene-9,10-dione | —— | C38H56O4 | 576.86 |
—— | 1,2-di-n-hexadecyloxy-9,10-anthraquinone | —— | C46H72O4 | 689.075 |
—— | 1,2-bis[octyloxy]anthraquinone | 912278-54-7 | C30H40O4 | 464.645 |
—— | 2,2'-((9,10-dioxo-9,10-dihydroanthracene-1,2-diyl) bis(oxy)) diacetic acid | —— | C18H12O8 | 356.288 |
—— | 1,2-dihydroxy-3-[bis(2-chloroethyl)aminomethyl]anthraquinone | —— | C19H17Cl2NO4 | 394.254 |
—— | 1,2-bis(acetonyloxy)anthraquinone | 1204905-39-4 | C20H16O6 | 352.343 |
2,3-二甲氧基蒽醌 | 2,3-dimethoxy-anthraquinone | 22506-55-4 | C16H12O4 | 268.269 |
2-氨基-1-羟基蒽醌 | 2-amino-1-hydroxyanthracene-9,10-dione | 568-99-0 | C14H9NO3 | 239.23 |
—— | 1,2-bis[2-ethyl-hexyloxy]anthraquinone | 912278-52-5 | C30H40O4 | 464.645 |
—— | 2-(2-ethyl-hexyloxy)-1-octadecyloxy-anthraquinone | 912278-48-9 | C40H60O4 | 604.914 |
9,10-二氧代-9,10-二氢蒽-1,2-二基二乙酸酯 | diacetylalizarin | 1629-51-2 | C18H12O6 | 324.29 |
—— | 2-ethoxy-3-hydroxy-anthraquinone | —— | C16H12O4 | 268.269 |
—— | 1,1',2,2'-tetrahydroxy[3,3'-bianthracene]-9,9',10,10'-tetrone | 474758-41-3 | C28H14O8 | 478.414 |
—— | 2,3-diethoxy-9,10-anthraquinone | 860529-09-5 | C18H16O4 | 296.323 |
茜素络合指示剂 | alizarin complexone | 3952-78-1 | C19H15NO8 | 385.33 |
—— | 1-Hydroxy-2-butyl-9,10-anthraquinone | 131559-12-1 | C18H16O3 | 280.323 |
—— | 1,2-bis-ethoxycarbonyloxy-anthraquinone | —— | C20H16O8 | 384.342 |
媒介橙 14 | 3-nitroalizarin | 568-93-4 | C14H7NO6 | 285.213 |
—— | 3-[[Bis(2-phenylsulfanylethyl)amino]methyl]-1,2-dihydroxyanthracene-9,10-dione | 1334733-18-4 | C31H27NO4S2 | 541.692 |
—— | 1-Acetoxy-2-benzyloxy-anthrachinon | 22516-90-1 | C23H16O5 | 372.377 |
1,2-二羟基蒽醌二苯甲酸酯 | 1,2-dibenzoylalizarin | 6375-18-4 | C28H16O6 | 448.431 |
1,2-二溴-3,4-二羟基蒽醌 | 1,2-dibromo-3,4-dihydroxy-anthraquinone | 92030-36-9 | C14H6Br2O4 | 398.007 |
3,4-二羟基-9,10-二氧代-9,10-二氢蒽-2-磺酸 | Alizarin S | 83-61-4 | C14H8O7S | 320.279 |
—— | 2,3-diacetoxy-9,10-anthraquinone | 7416-56-0 | C18H12O6 | 324.29 |
—— | ethyl 6,11-dihydro-6,11-dioxoanthra[1,2-d][1,3]-dioxole-2-acetate | 1312024-63-7 | C19H14O6 | 338.317 |
—— | 1,2-bis(trifluoromethylsulfonyloxy)anthraquinone | 1234556-16-1 | C16H6F6O8S2 | 504.341 |
—— | 1,3,4-trihydroxy-9,10-dioxo-9,10-dihydro-anthracene-2-sulfonic acid | 6837-96-3 | C14H8O8S | 336.279 |
—— | 4-nitroalizarin | 2243-71-2 | C14H7NO6 | 285.213 |
—— | 1-hydroxy-2-methoxy-anthraquinone-3-sulphonamide | —— | C15H11NO6S | 333.321 |
—— | 1-amino-2-hydroxy-9,10-anthracenedione | 568-98-9 | C14H9NO3 | 239.23 |
—— | N-(3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yl)-4-methylbenzene sulfonamide | —— | C21H15NO6S | 409.419 |
—— | 5-Hydroxy-2,2-diphenylnaphtho[2,3-g][1,3]benzodioxole-6,11-dione | 1311164-30-3 | C27H16O5 | 420.421 |
—— | alizarin-2-O-β-D-glucopyranoside | 31297-82-2 | C20H18O9 | 402.358 |
—— | 4-chloro-N-(3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yl) benzenesulfonamide | —— | C20H12ClNO6S | 429.837 |
—— | 3,4-dihydroxy-9,10-dioxo-9,10-dihydro-anthracene-1-sulfonic acid | 96652-08-3 | C14H8O7S | 320.279 |
蒽醌 | 9,10-phenanthrenequinone | 84-65-1 | C14H8O2 | 208.216 |
—— | 5-Ethoxy-2,2-diphenylnaphtho[2,3-g][1,3]benzodioxole-6,11-dione | 1311164-31-4 | C29H20O5 | 448.475 |
—— | 5-[6-(6,11-Dioxo-2,2-diphenylnaphtho[2,3-g][1,3]benzodioxol-5-yl)oxyhexoxy]-2,2-diphenylnaphtho[2,3-g][1,3]benzodioxole-6,11-dione | 1311164-39-2 | C60H42O10 | 922.987 |
—— | 5-[8-(6,11-Dioxo-2,2-diphenylnaphtho[2,3-g][1,3]benzodioxol-5-yl)oxyoctoxy]-2,2-diphenylnaphtho[2,3-g][1,3]benzodioxole-6,11-dione | 1311164-41-6 | C62H46O10 | 951.041 |
—— | 7,8-dihydroxy-9,10-dioxo-9,10-dihydro-anthracene-1,6-disulfonic acid | 861524-66-5 | C14H8O10S2 | 400.344 |
—— | O,O′-diethyl (phenyl)(2-(1-hydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yloxy)acetamido)methylphosphonate | 1621069-69-9 | C27H26NO8P | 523.479 |
—— | O,O′-diethyl (4-tolyl)(2-(1-hydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yloxy)acetamido)methylphosphonate | 1621069-71-3 | C28H28NO8P | 537.506 |