Methyl Orange

• Description:

  Methyl Orange is a soluble azo dye commonly used as an acid-base indicator and for staining cells and tissue sections, as well as for dyeing textiles. Methyl Orange appears red at a pH of 3.1 and changes to bright yellow as the pH increases to 4.4. Methyl Orange (500 mg/L) exhibits cytotoxicity and can cause DNA damage[1][2].

• UNSPSC:

  12171500

• Hazard Statement:

  H301

• Target:

  Fluorescent Dye

• Type:

  Dye Reagents

• Related Pathways:

  Others

• Field of Research:

  Others

• Assay Protocol:

  https://www.medchemexpress.com/methyl-orange.html

• Purity:

  99.85

• Solubility:

  DMSO : 20 mg/mL (ultrasonic; warming; heat to 60°C)

• Smiles:

  O=S(C1=CC=C(C=C1)/N=N/C2=CC=C(C=C2)N(C)C)(O[Na])=O

• Molecular Formula:

  C14H14N3NaO3S

• Molecular Weight:

  327.34

• Precautions:

  H301

• References & Citations:

  [1]Ahmad M, et al. Photocatalytic degradation of methyl orange from wastewater using a newly developed Fe-Cu-Zn-ZSM-5 catalyst. Environ Sci Pollut Res Int. 2020;27 (21) :26239-26248.|[2]Alaguprathana M, et al. Cytogenotoxicity assessment in Allium cepa roots exposed to methyl orange treated with Oedogonium subplagiostomum AP1. Environ Res. 2022 Oct;213:113612.|[3]Sandberg, et al. Kinetics of acid dissociation-ion recombination of aqueous methyl orange. The Journal of Physical Chemistry. 1972, 76 (26) : 4023–4025. of aqueous methyl orange. The Journal of Physical Chemistry. 1972

• Shipping Conditions:

  Room Temperature

• Storage Conditions:

  4°C (Powder, sealed storage, away from moisture)

• Scientific Category:

  Dye Reagents

• Clinical Information:

  No Development Reported

• CAS Number:

  [547-58-0]