Sigma-Aldrich 198250 Rose bengal certified by the Biological Stain Commission, Dye content ≥80 % 25 gr
| Sigma-Aldrich 198250 Rose bengal certified by the Biological Stain Commission, Dye content ≥80 % 25 gr |
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Synonym(s): Acid Red 94, Bengal Rose B sodium salt, 4,5,6,7-Tetrachloro-2′,4′,5′,7′-tetraiodofluorescein disodium salt, Rose Bengal sodium salt
Empirical Formula (Hill Notation): C20H2Cl4I4Na2O5
CAS Number: 632-69-9
Molecular Weight: 1017.64
Colour Index Number: 45440
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PROPERTIES
Quality Level 100
grade certified by the Biological Stain Commission
form powder
composition Dye content, ≥80%
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 |