15905-32-5
Chemical Structure
Erythrosine B free acid
Synonym(s): Erythrosin extra bluish free acid; Tetraiodofluorescein
- CAS No.: 15905-32-5
- Formula:C20H8I4O5
- Molecular Weight:835.89
IUPAC Name: 3',6'-dihydroxy-2',4',5',7'-tetraiodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
InChIKey: OALHHIHQOFIMEF-UHFFFAOYSA-N
SMILES: O=C1OC2(C3=CC(I)=C(C(I)=C3OC4=C(C(O)=C(C=C42)I)I)O)C5=C1C=CC=C5
Biological Activity: Erythrosine B free acid (Erythrosin extra bluish free acid; Tetraiodofluorescein) is a visible red dye and insecticide with colorimetric and fluorescent properties. Erythrosine B free acid serves as a membrane-impermeant live-cell dye for Gram-positive and Gram-negative bacteria, primarily staining dead cells with damaged plasma membranes. Erythrosine B free acid exhibits photosensitive larvicidal toxicity against Culex pipiens quinquefasciatus larvae. Erythrosine B free acid is used in live/dead bacterial assays in colorimetric and fluorescent measurements for low-, medium-, and high-throughput experiments, as well as in research related to mosquito-borne diseases and food coloring[1][2][3][4].
| Cat. No. | Product Name | Purity | Description | Pricing | |||||||||||||||||||
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Erythrosine B free acid | 99.07% | Erythrosine B free acid (Erythrosin extra bluish free acid; Tetraiodofluorescein) is a visible red dye and insecticide with colorimetric and fluorescent properties. Erythrosine B free acid serves as a membrane-impermeant live-cell dye for Gram-positive and Gram-negative bacteria, primarily staining dead cells with damaged plasma membranes. Erythrosine B free acid exhibits photosensitive larvicidal toxicity against Culex pipiens quinquefasciatus larvae. Erythrosine B free acid is used in live/dead bacterial assays in colorimetric and fluorescent measurements for low-, medium-, and high-throughput experiments, as well as in research related to mosquito-borne diseases and food coloring. | ||||||||||||||||||||
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Erythrosine B free acid (Standard) | ≥98% | Erythrosine B free acid (Standard) (Erythrosin extra bluish free acid (Standard); Tetraiodofluorescein (Standard)) is the analytical standard of Erythrosine B free acid (HY-107864). This product is intended for research and analytical applications. Erythrosine B free acid (Erythrosin extra bluish free acid; Tetraiodofluorescein) is a visible red dye and insecticide with colorimetric and fluorescent properties. Erythrosine B free acid serves as a membrane-impermeant live-cell dye for Gram-positive and Gram-negative bacteria, primarily staining dead cells with damaged plasma membranes. Erythrosine B free acid exhibits photosensitive larvicidal toxicity against Culex pipiens quinquefasciatus larvae. Erythrosine B free acid is used in live/dead bacterial assays in colorimetric and fluorescent measurements for low-, medium-, and high-throughput experiments, as well as in research related to mosquito-borne diseases and food coloring. | ||||||||||||||||||||
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References
- [1]. Andersen C J, et al. False elevation of serum protein-bound-iodine caused by red colored drugs or foods[J]. Scandinavian Journal of Clinical and Laboratory Investigation, 1964, 16(2): 249-249.
- [2]. Franke JD, et al. Erythrosin B: a versatile colorimetric and fluorescent vital dye for bacteria. BioTechniques. 2020 Jan;68(1):7-13. [Content Brief]
- [3]. Respicio NC, et al. The joint action of coprecipitated free-acid formulations of erythrosin B and fluorescein against the larvae of Culex pipiens quinquefasciatus Say (Diptera: Culicidae). J Econ Entomol. 1985 Feb;78(1):30-4.
- [4]. Lee J, et al. Investigation of the effect of erythrosine B on amyloid beta peptide using molecular modeling. Journal of molecular modeling. 2016 Apr;22(4):92.
