基本属性 生物活性体外研究 MSDS 用途与合成方法 荧光素 价格(试剂级) 上下游产品信息 供应商 新闻专题 供应信息 相关产品
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荧光素

基本属性 生物活性体外研究 MSDS 用途与合成方法 荧光素 价格(试剂级) 上下游产品信息 供应商 新闻专题 供应信息 相关产品
荧光素
  • 中文名称:荧光素
  • 英文名称:Fluorescein
  • CAS号:2321-07-5
  • 分子式:C20H12O5
  • 分子量:332.31
  • EINECS号:219-031-8
  • Mol文件:2321-07-5.mol
  • 荧光素
荧光素 性质
  • 熔点 320 °C(lit.)
  • 沸点 429.44°C (rough estimate)
  • 密度 1.2739 (rough estimate)
  • 折射率 1.5000 (estimate)
  • 储存条件 room temp
  • 溶解度 Solubility Insoluble in water, ether, benzene, chloroform; soluble in ethanol, methanol, acetone, Iethyl acetate, N,N-dimethylformamide
  • 酸度系数(pKa)2.2, 4.4, 6.7(at 25℃)
  • 色指数 45350
  • 形态Powder
  • 颜色Red to orange
  • 酸碱指示剂变色ph值范围Pink uorescence (4.0) to green uorescence (6.0)
  • 水溶解性 insoluble
  • 最大波长(λmax)493.5nm, 496nm, 460nm, 515nm
  • Merck 14,4159
  • BRN 94324
  • 稳定性Stable. Combustible. Incompatible with strong oxidizing agents.
  • 主要应用Organic light-emitting diode, nanoparticles, liquid crystal display, oil products, lip make-up, nucleic acid synthesis, amplification, sequencing and cloning, diagnosis of diabetic retinopathy, detecting yeast, multidrug resistance, proteins, antiHCV antibodies, target genes, enzymatic activity, nerve agent, nucleic acid sequences, imaging lung cancer, prostate cancer
  • 生物领域应用Detecting chromosomal aberration; diagnosing corneal diseases; marking/detecting insects; as antitumor agent; as antihistaminic agent; use in agriculture and plant cultivation; use in cosmetics; use in ophthalmology; as a substrate for measuring α-amylases activity, elastases activity, esterases activity, β-glucuronidases activity, horseradish peroxidases activity, kinases activity, monoamine oxidases (MAOs) activity, phosphatases activity, phospholipases activity, proteases/proteinases activity, telomerases activity activity
  • CAS 数据库2321-07-5(CAS DataBase Reference)
  • EPA化学物质信息Fluorescein (2321-07-5)
荧光素 用途与合成方法
  • 生物活性Fluorescein (Resorcinol phthalein) 是一种合成的有机光敏染料化合物。Fluorescein 是荧光示踪剂,可以应用于医学和生物学以及肿瘤感染的组织。
  • 体外研究

    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.

  • 化学性质 橙黄或浅橙红色结晶粉末。熔点314-316℃(分解)。溶于热乙醇、冰醋酸、碱溶液,呈绿色萤光,不溶于水、苯、氯仿和乙醚。
  • 用途 汞溴红的中间体。萤光光度分析试剂,测定氯、溴、碘、硫离子;氧化-还原指示试剂;生物染色剂。
  • 用途 荧光光度分析硫离子,试验溴,滴定氯、溴和碘。吸附指示剂,氧化还原指示剂。
  • 用途 吸附指示剂;氧化还原指示剂;荧光光度分析硫离子;滴定氯、溴和碘
  • 生产方法 用邻苯二甲酸酐与间苯二酚在硫酸参与下反应制得。
安全信息
MSDS信息
  • 更新日期2021-09-07
  • 产品编号F0095
  • 产品名称荧光素
  • CAS编号2321-07-5
  • 包装25G
  • 价格170
  •  
  • 更新日期2021-09-07
  • 产品编号F0095
  • 产品名称荧光素
  • CAS编号2321-07-5
  • 包装100g
  • 价格390
荧光素 上下游产品信息
荧光素供应商更多
  • 公司名称:沈阳晟达化工有限公司 黄金产品
  • 联系电话:024-31968136
  • 产品介绍: 中文名称:荧光素
    英文名称:Fluorescein
    CAS:2321-07-5
    包装信息:1kg;5kg;10kg;25kg; 备注:厂家直销,现货供应,价格优势,质量保证 99%指示剂
  •  
  • 公司名称:开原市沈新精细化工厂 黄金产品
  • 联系电话:18698863499 024-22595298-
  • 产品介绍: 中文名称:荧光素
    英文名称:Fluorescein
    CAS:2321-07-5
    包装信息:500g;25kg;1ton 备注:指示剂
  •  
  • 公司名称:北京百灵威科技有限公司
  • 联系电话:400-666-7788 010-82848833-
  • 产品介绍: 中文名称:荧光素, 指示剂
    英文名称:Fluorescein, indicator
    CAS:2321-07-5
    纯度:95% 包装信息:100G;25G;500G 备注:化学试剂、精细化学品、医药中间体、材料中间体
  •  
  • 公司名称:上海迈瑞尔化学技术有限公司
  • 联系电话:400-660-8290 21-61259100-
  • 产品介绍: 中文名称:荧光素
    英文名称:Fluorescein
    CAS:2321-07-5
    纯度:90% 包装信息:25g 备注:F70001
  •  
  • 公司名称:阿法埃莎(中国)化学有限公司
  • 联系电话:400-610-6006
  • 产品介绍: 中文名称:荧光素, 90+%
    英文名称:Fluorescein, 90+%
    CAS:2321-07-5
    包装信息:100g 备注:L13251
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