2′,7′-二氯荧光素

• 产品号: 35848
• CAS号: 76-54-0
• 分子式: C20H10Cl2O5
• 分子量: 401.1964
• 纯 度: ≥90% (T)

产品别名

• 标题: 2′,7′-Dichlorofluorescein
• IUPAC标准名: 2',7'-dichloro-3',6'-dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthene]-3-one
• IUPAC传统名: dichlorofluorescein

产品登记号

• Beilstein号: 58009
• PubChem SID: 24861978
• EC号: 200-968-6
• MDL号: MFCD00005047
• CAS号: 76-54-0

产品性质

• Empirical Formula (Hill Notation): C20H10Cl2O5
• 产品线: BioReagent
• 纯度: ≥90% (T)
• 适用性: suitable for fluorescence
• 荧光: λex 504 nm; λem 529 nm in 0.1 M Tris pH 8.0
• 熔点: 280 °C (dec.)(lit.)
• GHS警示词: Warning
• GHS危险声明: H315-H319-H335
• 欧盟危险性物质标志: 刺激性(Irritant) (Xi)
• 个人保护装置: dust mask type N95 (US), Eyeshields, Gloves
• GHS警示性声明: P261-P305 + P351 + P338
• 危险公开号: 36/37/38
• 安全公开号: 26-36
• 德国WGK号: 3

产品详细信息

详细说明 (English)

Frequently Asked Questions
Live Chat and Frequently Asked Questions are available for this Product.
Application
Application example:Dip reagent for the fluorimetric determination of vicinal diols, glycosides and phenols.Solution A: Saturated solution of lead tetraacetate (~2%) (Fluka-No. 15370) in glacial acetic acidSolution B: 2′,7′-Dichlorofluorescein in ethanol (0.2-1%)Mix 5 mL solution A with 5 mL solution B and bring to 200 mL with toluene, just prior to using. Solution should be freshly prepared each time. Dipping time: 10 sec.
Other usage examples: determination of carbohydrates by fluorescence densitometry after TLC; determination of H2O2 by chemiluminescence; fluorescent additive used in indirect fluorimetric detection in OTC-HPLC

详细说明 (简体中文)

Frequently Asked Questions
Live Chat and Frequently Asked Questions are available for this Product.
Application
Application example:Dip reagent for the fluorimetric determination of vicinal diols, glycosides and phenols.Solution A: Saturated solution of lead tetraacetate (~2%) (Fluka-No. 15370) in glacial acetic acidSolution B: 2',7'-Dichlorofluorescein in ethanol (0.2-1%)Mix 5 mL solution A with 5 mL solution B and bring to 200 mL with toluene, just prior to using. Solution should be freshly prepared each time. Dipping time: 10 sec.
Other usage examples: determination of carbohydrates by fluorescence densitometry after TLC; determination of H2O2 by chemiluminescence; fluorescent additive used in indirect fluorimetric detection in OTC-HPLC