523-44-4
Chemical Structure
Orange I
Synonym(s): α-Naphthol Orange
- CAS No.: 523-44-4
- Formula:C16H11N2NaO4S
- Molecular Weight:350.32
IUPAC Name: sodium (E)-4-((4-hydroxynaphthalen-1-yl)diazenyl)benzenesulfonate
InChIKey: AZLXCBPKSXFMET-ZAGWXBKKSA-M
SMILES: O=S(C1=CC=C(N=NC2=C3C=CC=CC3=C(O)C=C2)C=C1)(O[Na])=O
Biological Activity: Orange I (α-Naphthol Orange) is an anionic azo dye that can form a complex with Methylene blue (HY-14536) and cause fluorescence quenching. The equilibrium constant of the complex of Orange I and Methylene blue is 79900 mol-1·dm3. Orange I can change the absorption spectrum of itself and Methylene blue[1][2].
| Cat. No. | Product Name | Purity | Description | Pricing | |||||||||||||||||||
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Orange I | 86.26% | Orange I (α-Naphthol Orange) is an anionic azo dye that can form a complex with Methylene blue (HY-14536) and cause fluorescence quenching. The equilibrium constant of the complex of Orange I and Methylene blue is 79900 mol-1·dm3. Orange I can change the absorption spectrum of itself and Methylene blue. | ||||||||||||||||||||
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- [1]. Yamamoto S, et al. Spectroscopic studies of the interaction between methylene blue-naphthol orange complex and anionic and cationic surfactants. Spectrochim Acta A Mol Biomol Spectrosc. 2007 Feb;66(2):302-6. [Content Brief]
- [2]. Hamai S, et al. Inclusion complexes of cyclodextrins with methylene blue and α-naphthol orange and temperature dependence of the inclusion complexation in aqueous solutions[J]. Bulletin of the Chemical Society of Japan, 2002, 75(1): 77-84.
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