FAM azide,6-isomer|1386385-76-7   FAM (fluorescein) azide. solid and 10 mM solution in DMSO, labe生 reagent for Click chemistry. Pure 6-isomer. Can replace Alexa Fluor 488, DyLight 488.               FAM azide,6-isomer|1386385-76-7   General properties： Appearance: yellowish crystals Molecular weight: 458.42 CAS number: 1386385-76-7 Molecular formula: C24H18N4O6 Solubility: soluble in polar organic solvents (DMF, DMSO, alcohols) Quality control: NMR 1H, HPLC-MS (95%) Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light.   Spectral properties： Excitation maximum, nm: 494 ε, L⋅mol−1⋅cm−1: 75000 Emission maximum, nm: 520 Fluorescence quantum yield: 0.9 CF260: 0.20 CF280: 0.17        常用荧光染料的激发波长及发射波长 荧光染料 Ex（nm） Em（nm） FITC 490 525 TRITC 547 572 Cy2 489 506 Cy3 555 570 Cy5 646 620 Cy5.5 675 694 Cy7 750 773 Calcein 494 517 Rhodamine 110 496 520 Rhodamine B 555 580 5-Carboxy Fluorescein 492 518 5-FAM, SE 492 520 6-TAMRA SE 543 575 6-Carboxy-X-rhodamine 568 590 Alexa TM 488 490 520 BODIPY 530 550 Alexa TM 546 555 570 Pyronin Y 550 580 Thiadicarbocyanine 651 670 Alexa TM 594 590 615 6-Aminofluorescein 490 520 Dansyl chloride 337 492 Rhodamine 123 507 529 4-Methylumbelliferone 385 502 5-carboxy-2,7-dichlorofluorescein 504 529 5-Carboxynapthofluorescein 512 568 5-Carboxytetramethylrhodamine (5-TAMRA) 542 568 5-FAM (5-Carboxyfluorescein) 492 518 5-ROX (carboxy-X-rhodamine) 567 591 5-TAMRA (5-Carboxytetramethylrhodamine) 548 552 Acriflavin 436 520 Alexa Fluor 350™ 346 442 Alexa Fluor 430™ 431 540 Alexa Fluor 488™ 492 520 Alexa Fluor 532™ 531 553 Alexa Fluor 568™ 577 603 Alexa Fluor 633™ 632 650 Alexa Fluor 680™ 679 702 AMCA（Aminomethylcoumarin） 345 425 Aminocoumarin 346 442 Anthrocyl stearate 381 446 APC-Cy7 655 755 Atabrine 436 490 Aurophosphine 490 515 Bisbenzamide 360 461 Bodipy 492/515 490 515 Bodipy 500/510 500 510 Bodipy 530/550 528 547 Bodipy 576/589 579 590 Catecholamine 410 470 Coumarin Phalloidin 387 470 Dansyl Amine 337 517 Dansyl Chloride 372 518 Hydroxycoumarin 325 386 NBD 466 539 PerCP 488 675 Nile Red 556 590 Noradrenaline 340 490 Thiolyte 385 488 Merocyanin 555 578 BODIPY TMR 542 568