Orange I
Orange I (α-Naphthol Orange) is an azo dye that can form a complex with Methylene blue 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].
Product Specifications
CAS Number
523-44-4
Product Name Alternative
α-Naphthol Orange
UNSPSC
12171500
Hazard Statement
H302-H315-H319-H335
Target
Fluorescent Dye
Type
Dye Reagents
Related Pathways
Others
Field of Research
Others
Assay Protocol
https://www.medchemexpress.com/orange-i.html
Purity
86.26
Solubility
DMSO : 125 mg/mL (ultrasonic)
Smiles
O=S(C1=CC=C(N=NC2=C3C=CC=CC3=C(O)C=C2)C=C1)(O[Na])=O
Molecular Formula
C16H11N2NaO4S
Molecular Weight
350.32
Precautions
P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501
References & Citations
[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.|[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.
Shipping Conditions
Room Temperature
Storage Conditions
4°C (Powder, protect from light)
Scientific Category
Dye Reagents
Clinical Information
No Development Reported
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