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2-Methyl-5-nitroaniline

Zhishang Bio 2-Methyl-5-nitroaniline CAS 99-55-8

CAS:99-55-8 | C7H8N2O2 |MW:152.15 | EINECS NO:202-765-8

Payment: L/C,T/T,D/P,Paypal,Money Gram,Western Union

Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP

Transporta: Ocean, Land,Air, DHL,TNT

Port: Shanghai Port, Qingdao Port

Description

The Chemical Essence and Structure of 2-Methyl-5-nitroaniline
2-Methyl-5-nitroaniline is an important aromatic amino nitro compound, which has both amino (- NH ₂) and nitro (- NO ₂) functional groups attached to a benzene ring in toluene.

Its chemical formula can be written as C ₇ H ₈ N ₂ O ₂, and the system name clearly indicates the position of the substituent: the amino group is located adjacent to the methyl group, and the nitro group is located at the para position of the methyl group. The specific relative position between this adjacent amino group and the para nitro group profoundly affects its physical and chemical properties as well as reaction activity.

Physical and Chemical Properties of 2-Methyl-5-nitroaniline
2-Methyl-5-nitroaniline is typically a yellow to orange yellow or yellow brown crystalline or crystalline powder, which is a typical color of aromatic nitro compounds.

It is slightly soluble in cold water, soluble in hot water, easily soluble in organic solvents such as ethanol, ether, benzene, chloroform, and can dissolve in inorganic acids to form salts. The melting point is in the range of 107-110 ° C. From a chemical perspective, its molecules possess both the alkalinity and nucleophilicity of aromatic primary amines, as well as the strong electron withdrawing and reducibility of aromatic nitro groups.

Chemical properties of 22-Methyl-5-nitroaniline
2-Methyl-5-nitroaniline, as an aromatic primary amine, undergoes a typical diazotization reaction with its amino group to generate the corresponding diazonium salt, which is its most important reaction as a dye intermediate. Amino groups can also undergo acylation, alkylation, and other reactions.

Nitro is a strong electron withdrawing group that reduces the activity of electrophilic substitution reactions at other positions on the benzene ring and affects the alkalinity of the amino group. Meanwhile, nitro groups can be reduced to amino groups under specific conditions, generating ortho methyl p-phenylenediamine, thereby providing additional reaction sites.

Adjacent amino groups and methyl groups may exhibit certain steric hindrance effects.

Product Images & Packaging

2-Methyl-5-nitroaniline
2-Methyl-5-nitroaniline
2-Methyl-5-nitroaniline

Product Parameters

2-Methyl-5-nitroaniline Chemical Properties
Melting point 103-106 °C(lit.)
Boiling point 294.61°C (rough estimate)
density 1.2333 (estimate)
refractive index 1.6276 (estimate)
storage temp. Keep in dark place,Sealed in dry,2-8°C
solubility Chloroform (Slightly), Methanol (Slightly)
form Crystalline Powder
pka2.34±0.10(Predicted)
color Ochre to yellow-orange
Water Solubility <0.1 g/100 mL at 19 ºC
BRN 879021
Exposure limitsACGIH: TWA 1 mg/m3
Stability:Stable. Incompatible with strong oxidizing agents, acid chlorides, acid anhydrides, acids, chloroformates.

The application of 2-Methyl-5-nitroaniline

1.Main application of dye intermediates

This is the most traditional and primary application area of 2-Methyl-5-nitroaniline, used for synthesizing various important azo dyes and disperse dyes.

2-Methyl-5-nitroaniline can undergo diazotization reaction to generate the corresponding diazonium salt. As a key coupling agent, this diazonium can undergo coupling reaction with various coupling components to produce azo compounds that have larger molecular masses and longer conjugated system. The azo dyes are available in many bright colors, including yellow, orange, red, and blue. They can be used for textiles, leathers and papers as well as ink.

2-Methyll-5-nitroaniline itself is an important precursor for the synthesis of certain azo based dispersed dyes. Dispersed dye molecules for dyeing polyester or synthetic fibers can be created by protecting the amino group, diazotizing, or reducing its nitro group. These dyes are bright and have excellent color fastness.

2. Use as a pigment intermediary

This pigment can be further converted to organic pigments with better performance by chemical conversion.

Starting from 22-Methyl-5-nitroaniline, high-performance organic pigments with more complex molecular structures, better thermal stability, and weather resistance can be synthesized through diazotization, coupling, and possible further reactions such as ring closure and acylation. This pigment is bright, has a strong coverage and is resistant against sunlight and migration. This pigment is used for advanced coatings, printing inks and plastic coloring.

3.Applications for the Synthesis of Pharmaceutical and pesticide Intermediates

The chemical activity of different substituents on the benzene ring of 2-Methyl-5-nitroaniline makes it a useful building block for constructing complex heterocyclic molecules.

Amino and nitro groups are functional chemical groups. They can undergo a variety of reactions, such as acylations, alkylations, and reductions. Therefore, 2-Methyl-5-nitroaniline can be used as an intermediate for the synthesis of certain drugs containing benzoheterocyclic structures, for constructing the core skeleton of drug molecules.

Similarly, the 2-methyl-5-nitroaniline structure also exists in the design of certain pesticide molecules. It can be used in a series reactions to synthesize intermediates for insecticides and herbicides that have specific biological activity, providing a chemical base for pesticide innovations.

2-Methyl-5-nitroaniline 's Procurement Guide

Procurement Guidelines
1. Sample Policy
We can provide a 2-3g free trial package (shipping fee required)

2. Batch procurement
Packaging: 25kg/bag; 220kg/barrel; Special packaging according to your needs
MOQ:1kg

3. Customized services
Concentration customization (90% -99%)
Paeonol’s outsourcing services

Paeonol

FAQ

Yes, we have our own factory called ” ZhiShang Industry Group “

Yes, we have GMP certificate for some products, and we can provide DMF as well.

 -Quality you require, eg. Assay, Purity, or single impurity

-Quantity you need

-Standard you want, such as USP, EP, JP etc.

Escrow and T/T in advance are highly recommended. We can accept Western Union, Money Gram and Paypal as well.

For sample(less than 1kg), in about 3 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment. 

For samples, we will send by TNT/DHL/FEDEX/UPS express, usually it takes about 3-5 day.

Related References

Pubchem-2-Methyl-5-nitroaniline

Manufacturer of 2-Methyl-5-nitroaniline

Company Info

Zhishang Bio company in China that exports chemicals, Cosmetic raw materials, and Intermediates for over 70 countries now.
 
And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.
 
The company integrates research and development, production, and trade, with a modern production base, advanced testing equipment, and an experienced technical team to ensure that products reach industry-leading levels in purity, stability, and environmental friendliness.

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