CAS 76-54-0: 2′,7′-Dichlorofluorescein

Description: 2′,7′-Dichlorofluorescein, with the CAS number 76-54-0, is a synthetic organic compound widely used as a fluorescent dye and pH indicator. It exhibits a bright green fluorescence when excited by ultraviolet or blue light, making it valuable in various biological and chemical applications, including microscopy and flow cytometry. The compound has a molecular formula of C13H8Cl2O5 and features two chlorine atoms substituted at the 2' and 7' positions of the fluorescein structure, which enhances its photostability and solubility in aqueous solutions. 2′,7′-Dichlorofluorescein is sensitive to pH changes, displaying distinct fluorescence intensity variations across different pH levels, which allows for its use in monitoring cellular environments. Additionally, it is non-toxic at low concentrations, making it suitable for biological studies. However, like many chemical substances, it should be handled with care, following appropriate safety protocols to avoid exposure.

Formula: C₂₀H₁₀Cl₂O₅

InChI: InChI=1S/C20H10Cl2O5/c21-13-5-11-17(7-15(13)23)26-18-8-16(24)14(22)6-12(18)20(11)10-4-2-1-3-9(10)19(25)27-20/h1-8,23-24H

InChI key: InChIKey=VFNKZQNIXUFLBC-UHFFFAOYSA-N

SMILES: O=C1OC2(C=3C=CC=CC13)C4=CC(Cl)=C(O)C=C4OC5=CC(O)=C(Cl)C=C52

Synonyms:

• Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 2′,7′-dichloro-3′,6′-dihydroxy-
• D and C Orange No. 25
• 2′,7′-Dichlorofluorescein
• Fluorescein, 2′,7′-dichloro-
• 2′,7′-Dichloro-3′,6′-dihydroxyspiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one

2',7'-Dichlorofluorescein

CAS: 76-54-0

2',7'-Dichlorofluorescein is used as an indicator and as a cellular antioxidant activity. It is also …

• Formula: C₂₀H₁₀Cl₂O₅
• Color and Shape: Yellow to orange or orange-brown, powder
• Molecular weight: 401.20

Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,2',7'-dichloro-3',6'-dihydroxy-

CAS: 76-54-0

• Formula: C₂₀H₁₀Cl₂O₅
• Purity: 95%
• Color and Shape: Solid
• Molecular weight: 401.1964

2'',7''-Dichlorofluorescein

CAS: 76-54-0

• Formula: C₂₀H₁₀Cl₂O₅
• Purity: ≥ 90.0%
• Color and Shape: Yellow, orange or beige powder
• Molecular weight: 401.20

2,7-Dichlorofluorescein [For Fluorescent Indicator]

CAS: 76-54-0

• Purity: 97%
• Molecular weight: 401.20g/mol

2',7'-Dichlorofluorescein, ACS reagent

CAS: 76-54-0

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₂₀H₁₀Cl₂O₅
• Color and Shape: Light orange to red-brown, Powder
• Molecular weight: 401.20

2',7'-Dichlorofluorescein, pure

CAS: 76-54-0

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₂₀H₁₀Cl₂O₅
• Color and Shape: Light orange to red-brown, Powder
• Molecular weight: 401.20

2',7'-Dichlorofluorescein

CAS: 76-54-0

M05763 - 2',7'-Dichlorofluorescein

• Formula: C₂₀H₁₀Cl₂O₅
• Purity: >95.0%(HPLC)
• Color and Shape: Solid
• Molecular weight: 401.20001220703125

2',7'-Dichlorofluorescein [for Fluorescent indicator]

CAS: 76-54-0

• Formula: C₂₀H₁₀Cl₂O₅
• Purity: >95.0%(HPLC)
• Color and Shape: Light yellow to Brown powder to crystal
• Molecular weight: 401.20

2,7-Dichlorofluorescein (DCF) extrapure AR, ACS, 90%

CAS: 76-54-0

• Formula: C₂₀H₁₀Cl₂O₅
• Color and Shape: Orange to red brown, Crystalline powder, Passes test
• Molecular weight: 401.20

2,7-Dichlorofluorescein

CAS: 76-54-0

Fluorophore used in biological assays and for labeling cells and tissues

• Formula: C₂₀H₁₀Cl₂O₅
• Purity: Min. 95%
• Color and Shape: Powder
• Molecular weight: 401.2 g/mol