E8886

Erythrosin extra bluish

certified by the Biological Stain Commission

• Synonym(s): 2′,4′,5′,7′-Tetraiodofluorescein disodium salt, Acid Red 51, Iodoeosin
• Empirical Formula (Hill Notation): C₂₀H₆I₄Na₂O₅
• CAS Number: 16423-68-0
• Molecular Weight: 879.86
• Colour Index Number: 45430
• Beilstein: 1443945
• EC Number: 240-474-8
• MDL number: MFCD00144257
• UNSPSC Code: 12171500
• PubChem Substance ID: 24894685
• NACRES: NA.47

Properties

• grade: certified by the Biological Stain Commission
• Quality Level: 200
• form: powder
• composition: Dye content, ≥80%
• pH: 6.4 (30.3 °C)
• mp: 315 °C
• solubility: water: 1 mg/mL, clear
• density: 0.625-0.731 g/cm³ at 30.1 °C
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].[Na+].[O-]c1c(I)cc2c(Oc3c(I)c([O-])c(I)cc3C24OC(=O)c5ccccc45)c1I
• InChI: 1S/C20H8I4O5.2Na/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20;;/h1-6,25-26H;;/q;2*+1/p-2
• InChI key: RAGZEDHHTPQLAI-UHFFFAOYSA-L

Description

General description

Erythrosin extra bluish is soluble in ethanol and water. It is a brown powder, with a pH range of 2.5 to 4. It is used in color filters, light emitting diodes, cosmetics and hair dyes. It has been used in many biological applications such as, detecting gene expression, treating age related macular degeneration, diabetes and obesity.

Suitability

Certified for use in the Jackson stain for plant anatomy; counterstain for alum hematoxylin; Kreyberg′s method for keratin and mucus.

Safety Information

• Pictograms: GHS07,GHS09
• Signal Word: Warning
• Hazard Statements: H302 - H411
• Precautionary Statements: P264 - P270 - P273 - P301 + P312 - P391 - P501
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): 359.6 °F - closed cup
• Flash Point(C): 182 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves