2-Methyl-5-nitro-2H-indazole

Basic Information

View in Editor

CAS Number

5228-48-8

Molecular Formula

C8H7N3O2

Molecular Weight

177.16 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

129-131°C

Boiling Point

364.5°C at 760 mmHg

SMILES

View in Editor

CN1C=C2C=C(C=CC2=N1)[N+](=O)[O-]

InChI

InChI=1S/C8H7N3O2/c1-10-5-6-4-7(11(12)13)2-3-8(6)9-10/h2-5H,1H3

InChIKey

IWPBWVZEOVCZRX-UHFFFAOYSA-N

LogP

2.00470

Complexity

216

Safety Information

View Safety Information

Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Hazard Class

Class IRRITANT Class IRRITANT

Synonyms & References

English

2-Methyl-5-nitro-2H-indazole, AldrichCPR
CCG-54288
SMR000336155
Oprea1_234458
MFCD00051809
CHEMBL1484648
A829007
2H-Indazole, 2-methyl-5-nitro-
2-Methyl-5-nitro-2H-indazole
NSC 131655
SCHEMBL654958
AMY12225
2-Methyl-5-nitro-indazole;2-Methyl-5-nitro-2H-indazole
J-510003
2-methyl-5-nitro-indazole
AKOS005069400
NCGC00246528-01
DTXSID60966658
NSC131655
A871030
FT-0612978
SY096840
MLS000764009
IWPBWVZEOVCZRX-UHFFFAOYSA-N
2-methyl-5-nitroindazole
11P-683
HMS2711D14
5228-48-8
SB11757
SR-01000643394-1
H3B9KJ36AQ

MDL Number

MFCD00051809

Customs Code

2933990090

FAQ

What are the physical and chemical properties of 2-Methyl-5-nitro-2H-indazole (CAS: 5228-48-8)?

2-Methyl-5-nitro-2H-indazole is a crystalline solid with a molecular weight of approximately 184.12 g/mol. It is slightly soluble in water but soluble in organic solvents like ethanol and acetone. Chemically, it is stable but can react with strong reducing agents to form 2-methyl-5-aminomethyl-2H-indazole. It is also acidic due to the nitro group, which can protonate under certain conditions.

How is 2-Methyl-5-nitro-2H-indazole (CAS: 5228-48-8) typically synthesized?

2-Methyl-5-nitro-2H-indazole can be synthesized via the nitration of 2-methylindazole using nitric acid and sulfuric acid as the nitrating agent. The reaction is carried out in an aqueous phase under controlled temperature conditions to achieve a yield of around 70-80%. Further purification is often required to obtain the high-purity compound.

What industries use 2-Methyl-5-nitro-2H-indazole (CAS: 5228-48-8)?

2-Methyl-5-nitro-2H-indazole is primarily used in the pharmaceutical industry as an intermediate for the synthesis of various drugs. It also finds applications in the polymer industry for the preparation of polymeric materials, and in the sensor industry for the development of gas sensors. Additionally, it can be used in the semiconductor industry for the fabrication of certain electronic devices.

What precautions should be taken when handling 2-Methyl-5-nitro-2H-indazole (CAS: 5228-48-8)?

When handling 2-Methyl-5-nitro-2H-indazole, appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn at all times. The compound should be handled in a well-ventilated area or a fume hood to avoid inhalation. In the case of a spill, immediately clean it up using appropriate absorbent materials and wash the area with water. For more detailed safety information, refer to the Safety Data Sheet (SDS) for the compound.