887-79-6

Basic information

• Product Name: 2,4-DINITRO-1-NAPHTHOL
• Synonyms: MANCHESTER YELLOW;MARTIUS YELLOW;CI NO 10315;CI 10315;ACID YELLOW 24;2,4-Dinitro-1-naphthol sodium salt;2,4-DINITRO-1-NAPHTHOL;NAPHTHOL YELLOW
• CAS NO: 887-79-6
• Molecular Formula: C₁₀H₅N₂O₅*Na
• Molecular Weight: 234.17
• EINECS: 210-093-1
• Mol File: 887-79-6.mol
• Article Data: 4

Chemical Properties

• Melting Point: 130-133 °C(lit.)
• Boiling Point: 407.9°C at 760 mmHg
• Flash Point: 179.9°C
• Appearance: /
• Vapor Pressure: 3.08E-07mmHg at 25°C
• CAS DataBase Reference: 2,4-DINITRO-1-NAPHTHOL(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-DINITRO-1-NAPHTHOL(887-79-6)
• EPA Substance Registry System: 2,4-DINITRO-1-NAPHTHOL(887-79-6)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37
• WGK Germany: 3
• RTECS: QL3850000
• Hazardous Substances Data: 887-79-6(Hazardous Substances Data)

Usage

Physical State

Yellow crystalline solid

Uses

pH indicator
Preparation of dyes and pigments
Intermediate for synthesizing pharmaceuticals and organic compounds

Toxicity

Can cause irritation to the skin, eyes, and respiratory system upon exposure

Safety Precautions

Handle with caution
Follow proper safety protocols when working with it

InChI:InChI=1/C10H6N2O5.Na/c13-10-7-4-2-1-3-6(7)8(11(14)15)5-9(10)12(16)17;/h1-5,13H;/q;+1/p-1

Upstream product

• 79309-08-3 1-(2,2-dimethyl-3-hydroxypropoxy)-2,4-dinitronaphthalene 
• 2401-85-6 1-chloro-2,4-dinitronaphthalene 

Relevant articles and documents

Thermal Stability of σ Complexes of Aromatic Dinitro Compounds with Alkali Metal Methylates

Thermal stability of σ complexes of 2,4-dinitroanisole, 2-methoxy-3,5-dinitrobenzamide, 2,4-dinitro-5- and 2,4-dinitro-6-methoxyanisole, and 1-methoxy-2,4-dinitronaphthalene with alkali metal methylates was studied by differential thermal analysis in combination with differential thermogravimetry. The temperature and heat of decomposition of these compounds depend on the nature of substituent in the anion of the σ complex and on the radius of the alkali metal cation. In the first step of the thermolysis the corresponding dinitrophenolates and dinitronaphtholates are formed. The final products of the thermolysis are alkali metal formates.

Nucleophilic Aromatic Substitution in Solutions of Cationic Bolaform Surfactants

Reactions of OH- with 2,4-dinitro-1-chloro-benzene and -naphthalene have been examined in solutions of the following bolaform surfactants: alkane-α,ω-bis(trimethylammonium bromide), alkane=docosane, hexadecane, and dodecane, , bolaform(22)OH, and bolaform(16)OH.Rate effects of bolaform(22)Br and OH- were analysed quantitatively in terms of distribution of reactants between water and micelles and second-order rate constants at the micellar surfaces were very similar to those found with normal hexadecyltrimethylammonium micelles.Rate effects were much smaller with bolaform(16)Br and OH- but were typical of micellar rate enhancements, and bolaform(12)Br had even smaller effects.