2321-07-5

基本信息
萤光橙黄
萤光红
萤光黄
萤光素
荧光酯
荧光橙红
荧光黄
荧光素,水溶
黄 7 [CI 45350:1]
荧光素99%
螢光黃
二酚酞
荧光素
2-(6-羟基-3-氧代-3H-吨-9-基)苯甲酸
荧光素, 90+%
CI 45350
CI 45350.1
CI 45350:1
CI NO 45350
D AND C YELLOW NO 7
FLUORESCEIN
FLUORESCEIN, ALCOHOL SOLUBLE
RESORCINOL PHTHALEIN
S NO 880
SOLVENT YELLOW 94
11712yellow
2-(6-hydroxy-3-oxo-3h-xanthen-9-yl)-benzoicaci
3,6-dihydroxyspiro(xanthene-9,3’-phthalide)
3,6-fluorandiol
3’,4’-dehydroxyfluoran
3’,6’-dihydroxy-fluora
3’,6’-dihydroxyfluoran
3’,6’-dihydroxyspiro(isobenzofuran-1(3h),9’(9h)-xanthen)-3-one
3’,6’-fluorandiol
物理化学性质
≥39000 at 236-240nm
≥70000 at 488-492nm
安全数据
知名试剂公司产品信息
Fluorescein, pure(2321-07-5)
Fluorescein, 90+%(2321-07-5)
Fluorescein(2321-07-5)
报价日期 | 产品编号 | 产品名称 | CAS号 | 包装 | 价格 |
2025/02/08 | HY-D0251 | 荧光素 Fluorescein | 2321-07-5 | 250mg | 423元 |
2025/02/08 | HY-D0251 | 荧光素 Fluorescein | 2321-07-5 | 10mM * 1mLin DMSO | 465元 |
2025/02/08 | HY-D0251 | 荧光素 Fluorescein | 2321-07-5 | 1g | 550元 |
常见问题列表
Fluorescein is nearly inactive as a photodynamic sensitizer. Fluorescein consequently is almost useless as a photodynamic sensitizer, but it is of great value in fluorescence immunoassays.
The fluorescein dye is a common fluorescent probe. Its very high molar absorptivity at the wavelength of the argon laser (488 nm), large fluorescence quantum yield and high photostability makes it a very useful and sensitive fluorescent label. Fluorescein is commercially available in many derivatives, such as fluorescein isothiocyanate and fluorescein succinimidyl ester, that can be covalently attached to macromolecules and to amino acids. The labeled molecules can be detected with very high sensitivity which is utilized in, for example, capillary electrophoresis. The emission spectrum of fluorescein overlaps extensively the absorption spectrum of tetramethyl rhodamine, which is a related strongly fluorescent dye, making this pair very suitable for energy transfer experiments to determine distances within and between labeled macromolecules. Fluorescein in aqueous solution occurs in cationic, neutral, anionic and dianionic forms making its absorption and fluoresence properties strongly pH dependent.