Direct Red 81

Direct Red 81 is a diazo dye with a very high water solubility. The dye adsorption efficiency of Direct Red 81 is increased by increasing the adsorbent dose and adsorption time[1].

Product Specifications

CAS Number

[2610-11-9]

UNSPSC

12171500

Hazard Statement

H319

Target

Fluorescent Dye

Type

Dye Reagents

Related Pathways

Others

Field of Research

Others

Assay Protocol

https://www.medchemexpress.com/direct-red-81.html

Solubility

10 mM in DMSO

Smiles

OC(C(C=C1)=C(C=C1NC(C2=CC=CC=C2)=O)C=C3[S](=O)(O[Na])=O)=C3/N=N/C(C=C4)=CC=C4N=NC(C=C5)=CC=C5[S](=O)(O[Na])=O

Molecular Formula

C29H19N5Na2O8S2

Molecular Weight

675.60

Precautions

P264-P280-P305+P351+P338

References & Citations

[1]Dehghani M, et al. Direct red 81 adsorption on iron filings from aqueous solutions; kinetic and isotherm studies. Environ Technol. 2019 May;40 (13) :1705-1713.