4-Nitro-o-phenylenediamine

Basic Information

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CAS Number

99-56-9

Molecular Formula

C6H7N3O2

Molecular Weight

153.14 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Amines

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

199-201 °C

Boiling Point

276.04°C (rough estimate)

Density

1.3682 (rough estimate)

Water Solubility

1.2 g/L (20 ºC)

Flash Point

208.5 °C

Solubility

1 N HCl: ethanol, 1:1: soluble50mg/mL

Refractive Index

1.6910 (estimate)

SMILES

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C1=CC(=C(C=C1[N+](=O)[O-])N)N

InChI

InChI=1S/C6H7N3O2/c7-5-2-1-4(9(10)11)3-6(5)8/h1-3H,7-8H2

InChIKey

RAUWPNXIALNKQM-UHFFFAOYSA-N

LogP

2.44480

Complexity

156

Safety Information

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GHS Hazard Pictograms

H302

H317

Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

H317 May cause an allergic skin reaction
Sensitization, Skin

Hazard Class

Class 6.1 Class 6.1

Stability

Stable. Incompatible with strong acids, strong reducing agents, strong oxidizing agents, acid chlorides, acid anhydrides.

Synonyms & References

English

4-Nitrobenzene-1,2-diamine
3,4-Diaminonitrobenzene
Nitroophenylenediamine
2-Amino-4-nitro aniline
4-Nitro-o-phenylenediamine
4-Nitro-1,2-phenylenediamine
4-Nitro-1,2-phenylen
1,2-Diamino-4-nitrobenzene
C.I. 76020
2-Amino-4-nitroaniline
1,2-Benzenediamine, 4-nitro-
p-Nitro-o-phenylenediamine
4-Nitro-1,2-diaminobenzene
4-Nitro-1,2-benzenediamine
4-Nitrophenylenediamine
4-Nopd
4-Nop
4-N-o-Pda
4-NO
4NDB
4-Nitro-o-phenylene-diamine
O-PHENYLENEDIAMINE, 4-NITRO-
Nitro-o-phenylenediamine
4-Nitro-1,2-fenylendiamin
4-N
4-nitrobenzene-1,2-diamine
MFCD00007724
4-Nitro-para-phenylenediamine
DTXCID30958
NSC-5378
4-nitro 1,2-phenylenediamine

MDL Number

MFCD00007724

Customs Code

2921519090

FAQ

What is 4-Nitro-o-phenylenediamine (CAS: 99-56-9)?

4-Nitro-o-phenylenediamine (CAS: 99-56-9) is an organic aromatic compound with the molecular formula C6H6N4O2. It features a benzene ring substituted with two amino groups (NH2) at the ortho positions and a nitro group (NO2) at the 4th position. This compound is typically a yellow solid, known for its reactivity and use in chemical synthesis. Its structural characteristics make it a key intermediate in various industrial and research applications.

What are the main uses of 4-Nitro-o-phenylenediamine (CAS: 99-56-9)?

4-Nitro-o-phenylenediamine (CAS: 99-56-9) is primarily used in the pharmaceutical industry as a precursor for dye intermediates and drug synthesis. It also finds applications in industrial chemistry for producing azo dyes and functional materials. In research, it serves as a building block for developing new compounds. Its versatility in chemical reactions makes it valuable across multiple fields, including organic synthesis and material science.

Is 4-Nitro-o-phenylenediamine (CAS: 99-56-9) safe?

4-Nitro-o-phenylenediamine (CAS: 99-56-9) is not considered safe for direct handling due to its potential toxicity. It may cause skin and eye irritation, and inhalation risks are present. Safety guidelines recommend using appropriate personal protective equipment (PPE), ensuring proper ventilation, and following OSHA standards. Always consult a safety data sheet (SDS) for handling and disposal protocols to minimize health and environmental hazards.

How should 4-Nitro-o-phenylenediamine (CAS: 99-56-9) be stored?

4-Nitro-o-phenylenediamine (CAS: 99-56-9) should be stored in a cool, dry place (ideally 20-25°C), away from light and moisture. Use airtight containers, preferably glass or plastic, to maintain stability. Avoid storage with strong oxidizers or incompatible materials. Keep in a well-ventilated area and label clearly to ensure safe chemical storage and prevent degradation.