1787-61-7
Chemical Structure
Eriochrome black T, Indicator
- CAS No.: 1787-61-7
- Formula:C20H12N3NaO7S
- Molecular Weight:461.38
IUPAC Name: sodium (E)-3-hydroxy-4-((1-hydroxynaphthalen-2-yl)diazenyl)-7-nitronaphthalene-1-sulfonate
InChIKey: AMMWFYKTZVIRFN-QUABFQRHSA-M
SMILES: O=S(C1=C2C=C([N+]([O-])=O)C=CC2=C(/N=N/C3=CC=C4C=CC=CC4=C3O)C(O)=C1)(O[Na])=O
Biological Activity: Eriochrome black T, Indicator is a complexing agent for metal ions (e.g., Ca2+, Mg2+) and is used as an indicator in complexometric titrations. Eriochrome black T, Indicator forms colored complexes with metal ions through covalent coordination bonds, and indicates the endpoint of the titration by color change. Eriochrome black T, Indicator can be used as an anionic azo dye in photocatalytic degradation studies to evaluate the performance of photocatalysts. The reaction solution of Eriochrome black T, Indicator combined with Mg2+ is initially purple. During loop-mediated isothermal amplification (LAMP), the color changes from purple to sky blue due to the consumption of Mg2+ by the formation of magnesium pyrophosphate, indicating a positive reaction. The optimal concentration of Eriochrome black T, Indicator in LAMP is 60 μM, and the detection limit for Mycobacterium tuberculosis is 1 pg DNA/reaction[1][2].
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Eriochrome black T, Indicator | Eriochrome black T, Indicator is a complexing agent for metal ions (e.g., Ca2+, Mg2+) and is used as an indicator in complexometric titrations. Eriochrome black T, Indicator forms colored complexes with metal ions through covalent coordination bonds, and indicates the endpoint of the titration by color change. Eriochrome black T, Indicator can be used as an anionic azo dye in photocatalytic degradation studies to evaluate the performance of photocatalysts. The reaction solution of Eriochrome black T, Indicator combined with Mg2+ is initially purple. During loop-mediated isothermal amplification (LAMP), the color changes from purple to sky blue due to the consumption of Mg2+ by the formation of magnesium pyrophosphate, indicating a positive reaction. The optimal concentration of Eriochrome black T, Indicator in LAMP is 60 μM, and the detection limit for Mycobacterium tuberculosis is 1 pg DNA/reaction. | |||||||||||||||||||||
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Eriochrome black T | Eriochrome black T is a complex indicator used in complex titrations, e.g. | |||||||||||||||||||||
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- [1]. Waghchaure R H, et al. Photocatalytic degradation of methylene blue, rhodamine B, methyl orange and Eriochrome black T dyes by modified ZnO nanocatalysts: A concise review[J]. Inorganic Chemistry Communications, 2022, 143: 109764.
- [2]. Neshani A, et al. A Comparative Study on Visual Detection of Mycobacterium tuberculosis by Closed Tube Loop-Mediated Isothermal Amplification: Shedding Light on the Use of Eriochrome Black T. Diagnostics (Basel). 2023 Jan 2;13(1):155. [Content Brief]
