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Cyanine

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media. The ones used are mostly green or light blue colour, and are chemically unstable. For that reason, unstabilized cyanine discs are unsuitable for archival CD and DVD use. Recent cyanine discs contain stabilizers, typically a metal atom bonded to the cyanine molecule, that slow the deterioration
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experiments so that samples from two sources can be mixed and run together through the separation process. This eliminates variations due to differing experimental conditions that are inevitable if the samples were run separately. These variations make it extremely difficult, if not impossible, to
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Cy5 is sensitive to its electronic environment. Changes in the conformation of the protein it is attached to will produce either enhancement or quenching of the emission. The rate of this change can be measured to determine enzyme kinetic parameters. The dyes can be used for similar purposes in
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For applications to biotechnology, special cyanine dyes are synthesized from 2, 3, 5 or 7-methine structures with reactive groups on either one or both of the nitrogen ends so that they can be chemically linked to either
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is fluorescent in the far-red region (~650 excitation, 670 nm emission). Cy3 can be detected by various fluorometers, imagers, and microscopes with standard filters for Tetramethylrhodamine (TRITC). Due to its high
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groups. This is done through incorporating aminoallyl-modified nucleotides during synthesis reactions. A good ratio is a label every 60 bases such that the labels are not too close to each other, which would result in
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Umezawa K, Matsui A, Nakamura Y, Citterio D, Suzuki K (2009). "Bright, color-tunable fluorescent dyes in the Vis/NIR region: establishment of new "tailor-made" multicolor fluorophores based on borondipyrromethene".
625:) to avoid background contamination. They are thus able to easily distinguish colors from Cy3 and from Cy5, and also able to quantify the amount of Cy3 and Cy5 labeling in one sample (multiparametric detection). 670:
The Cy3 and Cy5 nomenclature was first proposed by Ernst, et al. in 1989, and is non-standard since it gives no hint of their chemical structures. In the original paper the number designated the count of the
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While patent protection for the standard Cy series of dyes has lapsed, the trademarked Cy naming remains in place. Consequently, dyes that are identical to Cy dyes, but called different names, are now sold.
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Cyanine dyes are used to label proteins, antibodies, peptides, nucleic acid probes, and any kind of other biomolecules to be used in a variety of fluorescence detection techniques:
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Cyanine dyes are available with different modifications such as methyl, ethyl or butyl substituents, carboxyl, acetylmethoxy, and sulfo groups which alter their hydrophilicity.
1489: 658:–Cyanine dyes bear one or two sulfo groups, rendering the Cy dye water-soluble, but tri- and quadri-sulfonated forms are available for even higher water solubility. 893:
Kvach, Maksim V.; Ustinov, Alexey V.; Stepanova, Irina A.; Malakhov, Andrei D.; Skorobogatyi, Mikhail V.; Shmanai, Vadim V.; Korshun, Vladimir A. (2008).
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Osterman IA, Ustinov AV, Evdokimov DV, Korshun VA, Sergiev PV, Serebryakova MV, Demina IA, Galyamina MA, Govorun VM, Dontsova OA (Jan 2013).
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Mujumdar B, Ernst A, Mujumdar SR, Lewis CJ, Waggoner AS (Mar 1993). "Cyanine dye labeling reagents: Sulfoindocyanine succinimidyl esters".
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Unlü M, Morgan ME, Minden JS (Oct 1997). "Difference gel electrophoresis: a single gel method for detecting changes in protein extracts".
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Advanced Fluorescence Reporters in Chemistry and Biology I: Fundamentals and Molecular Design Volume 8 of Springer Series on Fluorescence
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use computers to automate the acquisition of the data after the separation is complete. Using these dyes makes the automation trivial.
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Cyanines were first synthesized over a century ago. They were originally used, and still are, to increase the sensitivity range of
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Because they yield brighter and more stable fluorescence, cyanines can advantageously replace conventional dyes such as
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significantly. These discs are often rated with an archival life of 75 years or more. The other dyes used in CD-Rs are
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Armitage, Bruce A. (27 January 2005). "Cyanine Dye–DNA Interactions: Intercalation, Groove Binding, and Aggregation".
1235:"Cyanine dyes in biophysical research: the photophysics of polymethine fluorescent dyes in biomolecular environments" 971: 357: 648:
is a near-IR fluor that is invisible to the naked eye (excitation/emission maximum 750/776 nm). It is used in
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Many analogs of standard Cy 2 / 3 / 3.5 / 5 / 5.5 / 7 / 7.5 dyes were developed, using diverse modification:
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were unspecified. Due to this ambiguity various structures are designated Cy3 and Cy5 in the literature. The
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is another modification that confers hydrophilicity, not only to the dye but also to the labeled conjugate.
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molecules. Labeling is done for visualization and quantification purposes. Biological applications include
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is labeled with either Cy3 or Cy5 that has been synthesized to carry an N-hydroxysuccinimidyl ester (
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such as RNA localization, molecular interaction studies by fluorescence resonance energy transfer (
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is a near-infrared (IR) fluorescence-emitting dye (excitation/emission maximum 678/694 nm).
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The word cyanin is from the English word "cyan", which conventionally means a shade of
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have maximum sensitivity and biological objects give low background interference.
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Cy3 and Cy5 are the most popular, used typically combined for 2 colors detection.
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group. Although the name derives etymologically from terms for shades of
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do not have to be identical. In the dyes as used they are short
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chain. Both nitrogens may each be independently part of a
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Ernst LA, Gupta RK, Mujumdar RB, Waggoner AS (Jan 1989).
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For protein labeling, Cy3 and Cy5 dyes sometimes bear a
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chains one or both of which ends in a highly reactive
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which will form an image on the film, making the film
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which means a somewhat different color: "dark blue".
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Berneth, Horst (2008). "Methine Dyes and Pigments".
594:, this dye is also easily detected by naked eye on 1287: 1554: 1444: 1381:FluoProbes547H comparison in Confocal Microscopy 1095:Blower MD, Feric E, Weis K, Heald R (Dec 2007). 652:imaging applications, as well as the Cy7.5 dye. 1157: 1155: 993:Ullmann's Encyclopedia of Industrial Chemistry 305: 72:. Typically, they form part of a nitrogenous 68:, exactly one nitrogen atom is oxidized to an 1232: 665: 1152: 937:The IUPAC Compendium of Chemical Terminology 202:Additionally, these classes are recognized: 113:Cyanines have been classified in many ways: 79:The main application for cyanine dyes is in 33:are a synthetic dye family belonging to the 1370:FluoProbes488 comparison to FITC, Cyanine2 859:(close to "aqua") and is derived from the 585:excitation, ~570 nm emission), while 1142: 1140: 1120: 1045: 985: 983: 1391: 766: 730: 98: 1346:"Iris Dyes | Cyanine Technologies" 1233:Levitus, Marcia; Ranjit, Suman (2011). 1023: 1021: 989: 957: 342: 1555: 1137: 980: 899:European Journal of Organic Chemistry 1018: 962:. In Demchenko, Alexander P. (ed.). 958:Kim, Eunha; Park, Seung Bum (2010). 609:emission wavelengths (typically 532 810: 794:groups, which nucleic acids lack, 605:The scanners actually use diverse 13: 1290:"Cyanine Dyes (Cy2, Cy3, and Cy5)" 617:) and filter wavelengths (550-600 570: 551:Common cyanine dyes and their uses 526:Ex (nm): Excitation wavelength in 14: 1579: 1548: 1396:. Vol. 253. pp. 55–76. 966:. Berlin: Springer. p. 172. 819:group to react with amines, or a 581:fluoresces greenish yellow (~550 358:comparative genomic hybridization 314:, i.e., to increase the range of 31:tetramethylindo(di)-carbocyanines 1394:DNA Binders and Related Subjects 751:(mainly Visible range, but also 636:can replace sulfoRhodamine 101. 531:Em (nm): Emission wavelength in 41:, the cyanine family covers the 1481: 1438: 1385: 1374: 1363: 1338: 1327: 1302: 1281: 1239:Quarterly Reviews of Biophysics 1226: 1190: 1070:"Archival Lifespan of TDK CD-R" 726: 702: 1088: 1062: 951: 925: 886: 739:stained green with cyanine dye 629:Other cyanine dyes are useful: 1: 1568:Quaternary ammonium compounds 1200:Chemistry: A European Journal 1002:10.1002/14356007.a16_487.pub2 880: 850: 592:molar extinction coefficient 322:. Cyanines are also used in 94: 7: 1101:The Journal of Cell Biology 385: 306:History and use in industry 56:Chemically, cyanines are a 10: 1584: 870: 864: 666:Nomenclature and structure 18: 1251:10.1017/S0033583510000247 798:have to be modified with 368:, and various studies in 1288:Jackson ImmunoResearch. 842:Cy3 and Cy5 are used in 43:electromagnetic spectrum 19:Not to be confused with 1459:10.1002/elps.1150181133 996:. Weinheim: Wiley-VCH. 945:10.1351/goldbook.C01487 1509:10.1002/pmic.201200393 1212:10.1002/chem.200801906 1164:Bioconjugate Chemistry 1047:10.1002/cyto.990100103 911:10.1002/ejoc.200701190 823:group to react with a 759:), Microplate assays, 740: 575: 312:photographic emulsions 110: 1113:10.1083/jcb.200705163 767:Nucleic acid labeling 734: 574: 259:where two quaternary 180:Closed chain cyanines 109:III = Closed cyanines 102: 693:N-hydroxysuccinimide 675:(as shown), and the 596:electrophoresis gels 364:, which are used in 343:Use in biotechnology 105:I = Streptocyanines, 29:also referred to as 1176:10.1021/bc00020a001 122:open chain cyanines 81:biological labeling 74:heterocyclic system 66:resonance structure 60:system between two 1076:. US Digital Media 741: 576: 376:) and fluorescent 111: 107:II = Hemicyanines, 1411:978-3-540-22835-6 905:(12): 2107–2117. 524: 523: 1575: 1543: 1542: 1540: 1539: 1533: 1527:. Archived from 1494: 1485: 1479: 1478: 1442: 1436: 1435: 1429: 1425: 1423: 1415: 1389: 1383: 1378: 1372: 1367: 1361: 1360: 1358: 1357: 1348:. Archived from 1342: 1336: 1334:SETA BioMedicals 1331: 1325: 1324: 1322: 1321: 1312:. Archived from 1306: 1300: 1299: 1297: 1296: 1285: 1279: 1278: 1230: 1224: 1223: 1194: 1188: 1187: 1159: 1150: 1144: 1135: 1134: 1124: 1092: 1086: 1085: 1083: 1081: 1066: 1060: 1059: 1049: 1025: 1016: 1015: 987: 978: 977: 955: 949: 948: 929: 923: 922: 890: 873: 872: 867: 866: 811:Protein labeling 709:Alexa Fluor dyes 538:Molecular weight 386: 263:are joined by a 1583: 1582: 1578: 1577: 1576: 1574: 1573: 1572: 1553: 1552: 1551: 1546: 1537: 1535: 1531: 1492: 1486: 1482: 1447:Electrophoresis 1443: 1439: 1427: 1426: 1417: 1416: 1412: 1402:10.1007/b100442 1390: 1386: 1379: 1375: 1368: 1364: 1355: 1353: 1344: 1343: 1339: 1332: 1328: 1319: 1317: 1308: 1307: 1303: 1294: 1292: 1286: 1282: 1231: 1227: 1206:(5): 1096–106. 1195: 1191: 1160: 1153: 1145: 1138: 1093: 1089: 1079: 1077: 1068: 1067: 1063: 1026: 1019: 1012: 988: 981: 974: 956: 952: 931: 930: 926: 891: 887: 883: 875:kyaneos/kyanous 853: 813: 769: 729: 717:FluoProbes dyes 705: 668: 553: 540: 535: 530: 366:transcriptomics 345: 308: 248:quinophthalones 232: 227: 222: 217: 198: 191: 174: 169: 164: 147: 142: 137: 132: 118:Streptocyanines 108: 106: 104: 97: 64:atoms; in each 24: 17: 12: 11: 5: 1581: 1571: 1570: 1565: 1550: 1549:External links 1547: 1545: 1544: 1480: 1453:(11): 2071–7. 1437: 1428:|journal= 1410: 1384: 1373: 1362: 1337: 1326: 1310:"Cyandye, LLC" 1301: 1280: 1245:(1): 123–151. 1225: 1189: 1170:(2): 105–111. 1151: 1136: 1107:(7): 1365–73. 1087: 1061: 1017: 1011:978-3527306732 1010: 979: 972: 950: 933:"Cyanine dyes" 924: 884: 882: 879: 852: 849: 812: 809: 768: 765: 745:Flow cytometry 737:cyanobacterium 728: 725: 704: 701: 667: 664: 631: 630: 569: 568: 552: 549: 522: 521: 518: 515: 512: 509: 505: 504: 501: 498: 495: 492: 488: 487: 484: 481: 478: 475: 471: 470: 467: 464: 461: 458: 454: 453: 450: 447: 444: 441: 437: 436: 433: 430: 427: 424: 420: 419: 416: 413: 410: 407: 403: 402: 401:Quantum yield 399: 396: 393: 390: 344: 341: 333:phthalocyanine 307: 304: 269:heteroaromatic 257: 256: 251: 236: 235: 230: 225: 220: 215: 211: 210: 207:Neutrocyanines 200: 199: 194: 189: 184: 183: 176: 175: 170: 167: 162: 157: 156: 149: 148: 143: 140: 135: 130: 126: 125: 96: 93: 15: 9: 6: 4: 3: 2: 1580: 1569: 1566: 1564: 1561: 1560: 1558: 1534:on 2015-06-30 1530: 1526: 1522: 1518: 1514: 1510: 1506: 1502: 1498: 1491: 1484: 1476: 1472: 1468: 1464: 1460: 1456: 1452: 1448: 1441: 1433: 1421: 1413: 1407: 1403: 1399: 1395: 1388: 1382: 1377: 1371: 1366: 1352:on 2015-01-26 1351: 1347: 1341: 1335: 1330: 1316:on 2018-10-03 1315: 1311: 1305: 1291: 1284: 1276: 1272: 1268: 1264: 1260: 1256: 1252: 1248: 1244: 1240: 1236: 1229: 1221: 1217: 1213: 1209: 1205: 1201: 1193: 1185: 1181: 1177: 1173: 1169: 1165: 1158: 1156: 1148: 1143: 1141: 1132: 1128: 1123: 1118: 1114: 1110: 1106: 1102: 1098: 1091: 1075: 1071: 1065: 1057: 1053: 1048: 1043: 1039: 1035: 1031: 1024: 1022: 1013: 1007: 1003: 999: 995: 994: 986: 984: 975: 973:9783642047022 969: 965: 961: 954: 946: 942: 938: 934: 928: 920: 916: 912: 908: 904: 900: 896: 889: 885: 878: 876: 862: 858: 848: 845: 840: 839:experiments. 838: 832: 830: 826: 822: 818: 808: 806: 801: 797: 793: 790: 786: 782: 778: 774: 764: 762: 758: 754: 750: 746: 738: 733: 724: 720: 718: 714: 710: 700: 698: 694: 690: 686: 682: 678: 674: 663: 661: 657: 653: 651: 647: 643: 641: 637: 635: 628: 627: 626: 624: 620: 616: 612: 608: 603: 601: 600:CCD detectors 597: 593: 588: 584: 580: 573: 566: 565: 564: 562: 558: 548: 545: 544: 543:Quantum yield 539: 534: 529: 519: 516: 513: 510: 507: 506: 502: 499: 496: 493: 490: 489: 485: 482: 479: 476: 473: 472: 468: 465: 462: 459: 456: 455: 451: 448: 445: 442: 439: 438: 434: 431: 428: 425: 422: 421: 417: 414: 411: 408: 405: 404: 400: 397: 394: 391: 388: 387: 384: 381: 379: 375: 371: 367: 363: 359: 355: 351: 350:nucleic acids 340: 338: 334: 329: 325: 321: 317: 313: 303: 301: 300:benzothiazole 297: 293: 289: 285: 281: 277: 273: 270: 266: 262: 255: 252: 249: 245: 241: 238: 237: 233: 223: 213: 212: 208: 205: 204: 203: 197: 192: 186: 185: 181: 178: 177: 173: 165: 159: 158: 154: 151: 150: 146: 138: 128: 127: 123: 119: 116: 115: 114: 103:The Cyanines: 101: 92: 90: 86: 82: 77: 75: 71: 67: 63: 59: 54: 52: 48: 44: 40: 36: 32: 28: 22: 16:Class of dyes 1563:Cyanine dyes 1536:. 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Retrieved 1074:cdrom2go.com 1073: 1064: 1037: 1033: 991: 963: 953: 936: 927: 902: 898: 888: 874: 854: 841: 833: 817:succinimidyl 814: 775:experiments 770: 742: 727:Applications 721: 706: 703:Alternatives 669: 655: 654: 649: 645: 644: 639: 638: 633: 632: 621:and 655-695 604: 586: 578: 577: 554: 546: 525: 382: 378:immunoassays 346: 320:panchromatic 309: 258: 253: 240:Merocyanines 239: 229: 219: 206: 201: 195: 188: 179: 171: 161: 153:Hemicyanines 152: 144: 134: 121: 117: 112: 78: 55: 30: 26: 25: 1040:(1): 3–10. 796:nucleotides 761:Microarrays 677:side chains 557:fluorescein 435:QY 0.15 * 316:wavelengths 265:polymethine 254:Apocyanines 244:spiropyrans 35:polymethine 1557:Categories 1538:2015-06-27 1497:Proteomics 1356:2015-01-26 1320:2013-11-01 1295:2008-10-31 881:References 857:blue-green 844:proteomics 831:residues. 825:sulfhydryl 800:aminoallyl 773:microarray 749:Microscopy 660:PEGylation 561:rhodamines 533:nanometers 528:nanometers 477:(625);650 463:594;(640) 446:572;(620) 429:570;(615) 426:(512);550 370:proteomics 362:gene chips 274:, such as 242:including 224:-CN and R 58:conjugated 1430:ignored ( 1420:cite book 1259:1469-8994 1034:Cytometry 919:1099-0690 851:Etymology 827:group of 821:maleimide 807:effects. 805:quenching 789:aliphatic 697:maleimide 685:aliphatic 292:quinoline 280:imidazole 261:nitrogens 187:Aryl=N=CH 160:Aryl=N=CH 95:Structure 27:Cyanines, 1517:23161590 1267:21108866 1220:19117043 1131:18166649 939:. 2014. 829:cysteine 691:such as 681:R groups 673:methines 613:and 635 520:QY 0.28 503:QY 0.28 486:QY 0.27 469:QY 0.15 452:QY 0.67 418:QY 0.12 395:Em (nm) 392:Ex (nm) 288:pyridine 284:thiazole 193:-N=Aryl 62:nitrogen 1525:9002232 1467:9420172 1275:7345293 1184:7873641 1147:CYanine 1122:2373496 1080:3 April 1056:2917472 871:κυανοῦς 865:κυάνεος 713:Dylight 650:in vivo 354:protein 302:, etc. 276:pyrrole 91:media. 70:iminium 47:near IR 21:Cyanide 1523:  1515:  1475:604007 1473:  1465:  1408:  1273:  1265:  1257:  1218:  1182:  1129:  1119:  1054:  1008:  970:  917:  689:moiety 491:Cy5.5 457:Cy3.5 389:Probe 296:indole 272:moiety 1532:(PDF) 1521:S2CID 1493:(PDF) 1471:S2CID 1271:S2CID 861:Greek 792:amine 656:Sulfo 640:Cy5.5 634:Cy3.5 607:laser 500:1128 466:1102 440:Cy3B 328:DVD-R 196:(III) 45:from 1513:PMID 1463:PMID 1432:help 1406:ISBN 1263:PMID 1255:ISSN 1216:PMID 1180:PMID 1149:dyes 1127:PMID 1082:2022 1052:PMID 1006:ISBN 968:ISBN 915:ISSN 903:2008 837:FRET 559:and 541:QY: 536:MW: 517:818 514:767 511:743 508:Cy7 497:694 494:675 483:792 480:670 474:Cy5 460:581 449:658 443:558 432:767 423:Cy3 415:714 412:506 409:489 406:Cy2 374:FRET 360:and 335:and 326:and 324:CD-R 246:and 234:-CHO 228:N=CH 218:N=CH 172:(II) 133:N=CH 87:and 39:blue 1505:doi 1455:doi 1398:doi 1247:doi 1208:doi 1172:doi 1117:PMC 1109:doi 1105:179 1042:doi 998:doi 941:doi 907:doi 785:NHS 781:RNA 779:or 777:DNA 771:In 695:or 646:Cy7 587:Cy5 579:Cy3 398:MW 352:or 337:azo 166:-NR 145:(I) 139:-NR 120:or 89:DVD 49:to 1559:: 1519:. 1511:. 1501:13 1499:. 1495:. 1469:. 1461:. 1451:18 1449:. 1424:: 1422:}} 1418:{{ 1404:. 1269:. 1261:. 1253:. 1243:44 1241:. 1237:. 1214:. 1204:15 1202:. 1178:. 1166:. 1154:^ 1139:^ 1125:. 1115:. 1103:. 1099:. 1072:. 1050:. 1038:10 1036:. 1032:. 1020:^ 1004:. 982:^ 935:. 913:. 901:. 897:. 757:IR 755:, 753:UV 747:, 735:A 715:, 711:, 699:. 623:nm 619:nm 615:nm 611:nm 583:nm 563:. 380:. 339:. 298:, 294:, 290:, 286:, 282:, 278:, 85:CD 76:. 53:. 51:UV 1541:. 1507:: 1477:. 1457:: 1434:) 1414:. 1400:: 1359:. 1323:. 1298:. 1277:. 1249:: 1222:. 1210:: 1186:. 1174:: 1168:4 1133:. 1111:: 1084:. 1058:. 1044:: 1014:. 1000:: 976:. 947:. 943:: 921:. 909:: 868:/ 250:. 231:n 226:2 221:n 216:2 214:R 209:: 190:n 182:: 168:2 163:n 155:: 141:2 136:n 131:2 129:R 124:: 23:.

Index

Cyanide
polymethine
blue
electromagnetic spectrum
near IR
UV
conjugated
nitrogen
resonance structure
iminium
heterocyclic system
biological labeling
CD
DVD

spiropyrans
quinophthalones
nitrogens
polymethine
heteroaromatic
moiety
pyrrole
imidazole
thiazole
pyridine
quinoline
indole
benzothiazole
photographic emulsions
wavelengths

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