53019

Eosin Y disodium salt

analytical standard

• Synonym(s): 2′,4′,5′,7′-Tetrabromofluorescein disodium salt, Acid Red 87, Bromo acid J. TS, XL, or XX, Bromofluorescein, Bronze Bromo ES, D&C;Red No. 22, Eosin yellowish
• Empirical Formula (Hill Notation): C₂₀H₆Br₄Na₂O₅
• CAS Number: 17372-87-1
• Molecular Weight: 691.85
• Colour Index Number: 45380
• Beilstein/REAXYS Number: 3586809
• EC Number: 241-409-6
• MDL number: MFCD00005040
• UNSPSC Code: 85151701
• PubChem Substance ID: 329757909

Properties

• grade: analytical standard
• Quality Level: 100
• assay: ≥98.0% (HPLC)
• shelf life: limited shelf life, expiry date on the label
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• impurities: ≤4.0% water
• application(s): cleaning products; cosmetics; food and beverages; personal care
• format: neat
• SMILES string: [Na+].[Na+].[O-]C(=O)c1ccccc1C2=C3C=C(Br)C(=O)C(Br)=C3Oc4c(Br)c([O-])c(Br)cc24
• InChI: 1S/C20H8Br4O5.2Na/c21-11-5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(22)17(26)15(24)19(10)29-18(9)14(23)16(11)25;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2
• InChI key: SEACYXSIPDVVMV-UHFFFAOYSA-L

Description

General description

Eosin Y disodium salt is a synthetic dye, which is widely used as a photoredox catalyst in organic synthesis.[1]

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Analysis Note

contains up to 4% methanol (detected by H-NMR)

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H317,H319
• pcodes: P261 - P264 - P272 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Sens. 1
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: 376.9 °F - Pensky-Martens closed cup
• flash_point_c: 191.6 °C - Pensky-Martens closed cup