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  • D6883 - 2′,7′-Dichlorofluorescin diacetate

D6883 Sigma-Aldrich

2′,7′-Dichlorofluorescin diacetate


Synonym: 2′,7′-Dichlorodihydrofluorescein diacetate

  • CAS Number 4091-99-0

  • Empirical Formula (Hill Notation) C24H16Cl2O7

  • Molecular Weight 487.29

  •  Beilstein/REAXYS Number 4610273

  •  MDL number MFCD00128955

  •  PubChem Substance ID 24894058

  •  NACRES NA.77



Related Categories Alphabetical, Bioactive Small Molecule Alphabetical Index, Bioactive Small Molecules, Biochemicals and Reagents, Cell Biology,
Quality Level   200
assay   ≥97%
storage temp.   −20°C
SMILES string   CC(=O)Oc1cc2Oc3cc(OC(C)=O)c(Cl)cc3C(c2cc1Cl)c4ccccc4C(O)=O
InChI   1S/C24H16Cl2O7/c1-11(27)31-21-9-19-15(7-17(21)25)23(13-5-3-4-6-14(13)24(29)30)16-8-18(26)22(32-12(2)28)10-20(16)33-19/h3-10,23H,1-2H3,(H,29,30)



2′,7′-Dichlorofluorescin diacetate is a cell-permeable non-fluorescent probe. 2′,7′-Dichlorofluorescin diacetate is de-esterified intracellularly and turns to highly fluorescent 2′,7′-dichlorofluorescein upon oxidation.
Applications include sensitive and rapid quantitation of oxygen-reactive species in response to oxidative metabolism; microplate assay for detecting oxidative products in phagocytic cells, and quantitative multiwell myeloid differentiation assay.


50, 250 mg in poly bottle

Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

Please Enter a Lot Number

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How should Product D6883, 2´,7´-Dichlorofluorescin diacetate, be dissolved?
2´,7´-Dichlorofluorescin diacetate is soluble in organic solvents such as DMSO, ethanol, and DMF at 25 mg/mL. We test the solubility at 10 mg/ml in methanol.
What is the solution stability of Product D6883, 2´,7´-Dichlorofluorescin diacetate?
This product can be stored at -20°C for up to six months in solvents such as DMSO, ethanol, or DMF (N,N-dimethylformamide).
What is the excitation and emission wavelength for Product D6883, 2´,7´-Dichlorofluorescin diacetate?
The excitation wavelength is 504 nm and emission wavelength is 529 nm (in ethanol).
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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