198250

Bengalrosa Natriumsalz

certified by the BSC, Dye content ≥80 %

• Synonym(e): 4,5,6,7-Tetrachlor-2′,4′,5′,7′-tetraiodfluoreszein Dinatriumsalz, Bengalrosa Natriumsalz, Rose Bengal, Säurerot 94
• Empirische Formel (Hill-System): C₂₀H₂Cl₄I₄Na₂O₅
• CAS-Nummer: 632-69-9
• Molekulargewicht: 1017.64
• NACRES: NA.47
• PubChem Substance ID: 24851870
• UNSPSC Code: 12171500
• Colour Index Number: 45440
• EC Number: 211-183-3
• MDL number: MFCD00005043
• Beilstein/REAXYS Number: 3645857

Eigenschaften

• agency: certified by the BSC
• Quality Segment: 100
• form: powder
• composition: Dye content, ≥80%
• color: dark violet
• solubility: H₂O: 1 mg/mL
• λmax: 548 nm
• ε (extinction coefficient): ≥90000 at 546-550 nm at 0.008 g/L
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].[Na+].[O-]C(=O)c1c(Cl)c(Cl)c(Cl)c(Cl)c1C2=C3C=C(I)C(=O)C(I)=C3Oc4c(I)c([O-])c(I)cc24
• InChI: 1S/C20H4Cl4I4O5.2Na/c21-10-8(9(20(31)32)11(22)13(24)12(10)23)7-3-1-5(25)16(29)14(27)18(3)33-19-4(7)2-6(26)17(30)15(19)28;;/h1-2,29H,(H,31,32);;/q;2*+1/p-2
• InChI key: UWBXIFCTIZXXLS-UHFFFAOYSA-L

Beschreibung

General description

Rose Bengal is the sodium salt of tetraiodotetrachlorouorescein, C₂₀H₂O₅I₄Cl₄Na₂. It is an anionic water-soluble xanthene dye.

Application

Rose bengal has several microbilogical staining applications including:

• Conn′s technique for bacteria in soil and Kreyberg′s stain for keratin and mucus
• counterstaining hematoxylin
• staining cellular inclusions, together with Bismark brown

Sicherheitshinweise

• Lagerklasse: 11 - Combustible Solids
• Was ist los?: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• PSA (Persönliche Schutzausrüstung): Eyeshields, Gloves, type N95 (US)