Orange I

• Description :

  Orange I (α-Naphthol Orange) is an 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].

• 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

• CAS Number :

  [523-44-4]