45245

Eosin 5-isothiocyanate

≥95.0% (UV)

• Synonym(s): EITC
• Empirical Formula (Hill Notation): C₂₁H₇Br₄NO₅S
• CAS Number: 60520-47-0
• Molecular Weight: 704.96
• UNSPSC Code: 12352200
• PubChem Substance ID: 57650268
• MDL number: MFCD00082502

Properties

• assay: ≥95.0% (UV)
• fluorescence: λ_ex 521; λ_em 544 (pH 9.0)
• storage temp.: 2-8°C
• SMILES string: OC(=O)c1cc(ccc1C2=C3C=C(Br)C(=O)C(Br)=C3Oc4c(Br)c(O)c(Br)cc24)N=C=S
• InChI: 1S/C21H7Br4NO5S/c22-12-4-10-14(8-2-1-7(26-6-32)3-9(8)21(29)30)11-5-13(23)18(28)16(25)20(11)31-19(10)15(24)17(12)27/h1-5,27H,(H,29,30)
• InChI key: MCXYFYWNOWPDMA-UHFFFAOYSA-N

Description

Application

Eosin 5-isothiocyanate (EITC) is a fluorescence probe. EITC tagged molecules may be used together with fluorescein-5′-isothiocyanate (FITC) tagged molecules in fluoresce resonance energy transfer (FRET) based assays.

Other Notes

Acceptor fluorophore. Measurement of rotational diffusion of proteins; In fluorescence energy transfer studies

Safety Information

• pictograms: GHS08
• signalword: Danger
• pcodes: P261 - P280 - P342 + P311
• Hazard Classifications: Resp. Sens. 1 - Skin Sens. 1
• Storage Class: 13 - Non Combustible Solids
• wgk: WGK 3
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Faceshields, Gloves
• flash_point_f: Not applicable
• hcodes: H317,H334