2-Methyl-5-nitroaniline

ChemicalBook > CAS DataBase List > 2-Methyl-5-nitroaniline

2-Methyl-5-nitroaniline

Product Name: 2-Methyl-5-nitroaniline
CAS No.: 99-55-8
Chemical Name: 2-Methyl-5-nitroaniline
Synonyms: FAST SCARLET G BASE;5-NITRO-O-TOLUIDINE;2-AMINO-4-NITROTOLUENE;PNOT;SCARLET G BASE;pnot[qr];CI 37105;NCI-C01843;dahongseji;ci37105[qr]
CBNumber: CB7234387
Molecular Formula: C7H8N2O2
Formula Weight: 152.15
MOL File: 99-55-8.mol

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2-Methyl-5-nitroaniline Property

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
pka: 2.34±0.10(Predicted)
color: Ochre to yellow-orange
Water Solubility: <0.1 g/100 mL at 19 ºC
BRN: 879021
Exposure limits: ACGIH: TWA 1 mg/m3
Stability:: Stable. Incompatible with strong oxidizing agents, acid chlorides, acid anhydrides, acids, chloroformates.
CAS DataBase Reference: 99-55-8(CAS DataBase Reference)
NIST Chemistry Reference: Benzenamine, 2-methyl-5-nitro-(99-55-8)
IARC: 3 (Vol. 48) 1990
EPA Substance Registry System: 2-Methyl-5-nitroaniline (99-55-8)

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Safety

Hazard Codes: T,Xi
Risk Statements: 23/24/25-40-52/53
Safety Statements: 36/37-45-61
RIDADR: UN 2660 6.1/PG 3
WGK Germany: 3
RTECS: XU8225000
Hazard Note: Irritant
TSCA: Yes
HazardClass: 6.1
PackingGroup: III
HS Code: 29214300
Hazardous Substances Data: 99-55-8(Hazardous Substances Data)
Toxicity: LD50 orl-rat: 574 mg/kg NCIMR* NIH-71-E-2144,73

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H351Suspected of causing cancer

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P201Obtain special instructions before use.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: M59386
Product name: 2-Methyl-5-nitroaniline
Purity: 98%
Packaging: 100g
Price: $62.7
Updated: 2024/03/01

Sigma-Aldrich

Product number: 402729
Product name: 2-Methyl-5-nitroaniline
Purity: 95%
Packaging: 100g
Price: $104
Updated: 2023/06/20

Sigma-Aldrich

Product number: 45984
Product name: 2-Methyl-5-nitroaniline
Purity: analytical standard
Packaging: 100mg
Price: $51.1
Updated: 2022/05/15

TCI Chemical

Product number: N0115
Product name: 2-Methyl-5-nitroaniline
Purity: >98.0%(GC)(T)
Packaging: 25g
Price: $44
Updated: 2024/03/01

TCI Chemical

Product number: N0115
Product name: 2-Methyl-5-nitroaniline
Purity: >98.0%(GC)(T)
Packaging: 500g
Price: $520
Updated: 2024/03/01

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2-Methyl-5-nitroaniline Chemical Properties,Usage,Production

Description

2-Methyl-5-nitroaniline, also known as 5-nitro-o-toluidine, is an intermediate compound in the synthesis of a wide range of azo dyes and is an in vivo metabolic product of 2,4-dinitrotoluene.

Chemical Properties

5-Nitro-o-toluidine is a yellow, crystalline solid.

Uses

2-Methyl-5-nitroaniline may be employed as analytical standard for the surfactant mediated transformations (?254nm) of 2,4-dinitrotoluene.

Uses

5-Nitro-o-toluidine is used in the synthesis of numerous dyes.

Preparation

2-Methyl-5-nitrobenzenamine?in concentrated sulfuric acid nitration.

Preparation

o-Toluidine(500 mg, 4.19 mmol) was added with vigorous stirring to a balloon with concentrated sulfuric acid (3.9 ml, 71.4 mmol). The temperature of the reaction is 10 ℃ (salt/ice, cold bath). After that, an acid mixture (0.9 mlHNO3 and 0.9 ml H2SO4) was added to the solution for 2 h. The mixture was placed on ice and basified with NaOH. Finally, 2-methyl-5-nitroaniline was collected by filtration and washed with water.

Definition

ChEBI: A C-nitro compound in which the nitro compound is meta to the amino group and para to the methyl group of o-toluidine.

Air & Water Reactions

Insoluble in water. 2-Methyl-5-nitroaniline is sensitive to moisture, light, or prolonged exposure to air.

Reactivity Profile

2-Methyl-5-nitroaniline is incompatible with strong oxidizing agents, acids, acid chlorides, acid anhydrides and chloroformates.

Fire Hazard

Flash point data for 2-Methyl-5-nitroaniline are not available; however, 2-Methyl-5-nitroaniline is probably combustible.

Toxicology

Genetic toxicity studies for 2-methyl-5-nitroaniline indicate generally positive results in reverse-mutation assays in Salmonella typhimurium and Escherichia coli, and in Syrian hamster embryo (SHE) cell transformation assays; the compound is weaker in potency than other 2,4-dinitrotoluene metabolites.

Safety Profile

Confirmed carcinogen with experimental carcinogenic data. Moderately toxic by ingestion. Mutation data reported. Decomposes exothermically when heated to 150℃. When heated to decomposition it emits toxic fumes of NOx. See also NITRO COMPOUNDS OF AROMATIC HYDROCARBONS.

Carcinogenicity

There are no data available for evaluating carcinogenic risk to humans. When 5-nitro-o-toluidine was administered in a dietary feeding study to F344 rats (50 or 100 ppm) and B6C3F1 mice (1200 or 2300 ppm) of both sexes, hepatocellular carcinomas were produced in mice but not in rats.

Shipping

UN2660 Nitrotoluidines (mono), Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Purification Methods

Acetylate the aniline, and the acetyl derivative is crystallised to constant melting point; then hydrolyse it with 70% H2SO4 and the free base is regenerated by treatment with NH3 [Bevan et al. J Chem Soc 4284 1956]. [Beilstein 12 H 844. 12 IV 1807.]

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, acid chlorides; acid anhydrides; chloroformates.

Waste Disposal

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.

2-Methyl-5-nitroaniline Preparation Products And Raw materials

Raw materials

2-METHYLACETANILIDE o-Toluidine Nitric acid

Preparation Products

3-CHLORO-6-NITRO (1H)INDAZOLE 6-Hydroxyindazole 6-AMINO-3-CHLORO (1H)INDAZOLE Disperse Yellow S-3GL Pigment Fast Scarlet G 3-Iodo-6-nitroindazole 3-BROMO-6-NITROINDAZOLE Coating Brilliant Red 6-Nitroindazole 6-AMINO-3-BROMO (1H)INDAZOLE Pigment Red 8

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View Lastest Price from 2-Methyl-5-nitroaniline manufacturers

Hebei Weibang Biotechnology Co., Ltd

Product: 2-Methyl-5-nitroaniline 99-55-8
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10 mt
Release date: 2023-02-21

Henan Fengda Chemical Co., Ltd

Product: 2-Methyl-5-nitroaniline 99-55-8
Price: US $5.00-0.10/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: g-kg-tons, free sample is available
Release date: 2024-04-16

Hebei Mojin Biotechnology Co., Ltd

Product: 2-Methyl-5-nitroaniline 99-55-8
Price: US $50.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 5000KG
Release date: 2023-08-16

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