Description

1-Chloro-2-nitrobenzene (CAS No. 88-73-3), also known as 2-Chloronitrobenzene or o-Chloronitrobenzene, is a high-purity aromatic compound with the molecular formula C₆H₄ClNO₂. This yellow crystalline solid is widely utilized in organic synthesis, pharmaceutical intermediates, and agrochemical production. With a molecular weight of 157.55 g/mol, it exhibits a melting point of 32-34°C and a boiling point of 245-246°C. Our product is rigorously tested for purity (≥98% by GC) and is supplied in secure, chemically resistant packaging to ensure stability and shelf life. Ideal for researchers and industrial applications requiring precise nitroaromatic chemistry.

Properties

• CAS Number: 88-73-3
• Complexity: 134
• IUPAC Name: 1-chloro-2-nitro-benzene
• InChI: InChI=1S/C6H4ClNO2/c7-5-3-1-2-4-6(5)8(9)10/h1-4H
• InChI Key: BFCFYVKQTRLZHA-UHFFFAOYSA-N
• LogP: log Kow = 2.52
• Exact Mass: 156.9930561
• Molecular Formula: C6H4ClNO2
• Molecular Weight: 157.55
• SMILES: C1=CC=C(C(=C1)[N+](=O)[O-])Cl
• Topological: 45.8
• Monoisotopic Mass: 156.9930561
• Physical Description: O-nitrochlorobenzene appears as yellow crystals with an aromatic odor. Sinks in water.
• Color/Form: Yellow crystals
• Boiling Point: 475 °F at 760 mmHg
• Melting Point: 90 to 91 °F
• Flash Point: 261 °F
• Solubility: less than 0.1 mg/mL at 67.8 °F
• Density: 1.368 at 71.6 °F – Denser than water; will sink
• Vapor Density: 5.44 – Heavier than air; will sink
• Vapor Pressure: 0.4 mmHg at 77 °F
• Henry’s Law Constant: Henry’s Law constant = 9.3X10-6 atm-cu m/mole at 25 °C
• Autoignition Temperature: 470 °C
• Viscosity: 2.09X10-3 Pa-s at 317.65 deg K
• Heat of Vaporization: 6.59X10+7 J/kmol at 306.14 deg K
• Surface Tension: 4.37X10-2 N/m at 317.65 deg K
• Synonyms: 2-Chloronitrobenzene, 1-CHLORO-2-NITROBENZENE, 88-73-3, o-Chloronitrobenzene, 2-Nitrochlorobenzene, o-Nitrochlorobenzene, 2-Chloro-1-nitrobenzene, Benzene, 1-chloro-2-nitro-, ortho-chloronitrobenzene, CCRIS 141, DTXSID0020280, HSDB 1322, UNII-D1YI9R2K8O, EINECS 201-854-9, 1-Chloronitrobenzene, CHEBI:34270, AI3-15385, Nitrochlorobenzene, o-, ortho-nitrochlorobenzene, 1-chloro,2-nitrobenzene, Nitrochlorobenzene, ortho, 2-Nitro-1-chlorobenzene, NSC-36934, DTXCID80280, O-CHLORONITROBENZENE [MI], EC 201-854-9, CHLORO-2-NITROBENZENE, 1-, 1-CHLORO-2-NITROBENZENE [HSDB], chloronitrobenzene (ortho), oChloronitrobenzene, oNitrochlorobenzene, 2chloronitrobenzene, 2Nitrochlorobenzene, 5-chloronitrobenzene, 1Chloro2nitrobenzene, 1Nitro2chlorobenzene, 2Chloro1nitrobenzene, O-CNB, NITROCHLOROBENZENE, ORTHO-, bfcfyvkqtrlzha-uhfffaoysa-n, inchi=1/c6h4clno2/c7-5-3-1-2-4-6(5)8(9)10/h1-4, un1578, Chloronitrobenzene, ONCB, Nitrochlorobenzene, 1-Nitro-2-chlorobenzene, NSC 36934, Chloro-o-nitrobenzene, 25167-93-5, D1YI9R2K8O, Benzene, chloronitro-, MFCD00007061, Altitran, Mononitrochlorobenzene, EINECS 246-695-6, 1-Chloro-2-nitro-benzene, UNII-846GSP547V, Benzene,chloronitro-, o-chloro-nitrobenzene, 2-chloro nitrobenzene, 2-chloro-nitrobenzene, 2-nitro chlorobenzene, 2-nitro-chlorobenzene, ortho-nitro-chlorobenzene, 4-chloro-3-nitrobenzene, Nitrochlorobenzene, liquid, WLN: WNR BG, SCHEMBL19859, SCHEMBL78743, ghl.PD_Mitscher_leg0.936, MLS001055388, BIDD:ER0655, CHEMBL53330, SCHEMBL231697, SCHEMBL1179475, SCHEMBL1179476, SCHEMBL11527352, SCHEMBL11882483, 1-Chloro-2-nitrobenzene, 99%, Chloronitrobenzene, ortho, liquid, 846GSP547V, HMS3039K15, NSC36934, Tox21_200791, STL283954, AKOS000118963, CAS-88-73-3, NCGC00090715-01, NCGC00090715-02, NCGC00090715-03, NCGC00258345-01, 2-Chloronitrobenzene 2-Nitrochlorobenzene, BS-42463, SMR000677934, DB-057100, DB-243262, 1-Chloro-2-nitrobenzene, analytical standard, NS00002910, EN300-19237, D87558, 1-Chloro-2-nitrobenzene 10 microg/mL in Methanol, AC-907/25014094, 1-Chloro-2-nitrobenzene 100 microg/mL in Methanol, 1-Chloro-2-nitrobenzene, purum, >=99.0% (GC), Q2803418, Chloronitrobenzene, ortho, liquid [UN1578] [Poison], F1908-0107, Z104473258, 1-chloro-2-nitrobenzene;chloro-2-nitrobenzene, 1-;2-chloro-1-nitrobenzene;benzene, 1-chloro-2-nitro-;o-chloronitrobenzene;1-chloro-2-nitrobenzene chloro-2-nitrobenzene, 1- 2-chloro-1-nitrobenzene benzene, 1-chloro-2-nitro- o-chloronitrobenzene

Application

1-Chloro-2-nitrobenzene serves as a key intermediate in the synthesis of dyes, pigments, and pharmaceuticals, including the production of antifungal agents. It is also employed in the manufacture of rubber chemicals and as a precursor for herbicides. In research, it is used in electrophilic aromatic substitution studies and as a building block for complex organic molecules.

Safety and Hazards

GHS Hazard Statements

• H350: May cause cancer [Danger Carcinogenicity]

Precautionary Statements

• P203, P280, P318, P405, and P501

Hazard Classes and Categories

• Acute toxicity – Category 3
• Acute toxicity – Category 3
• Acute toxicity – Category 4
• Serious eye damage/eye irritation – Category 2B
• Germ cell mutagenicity – Category 2
• Reproductive toxicity – Category 2
• Specific target organ toxicity – Single exposure – Category 2
• Specific target organ toxicity – Repeated exposure – Category 1
• Hazardous to the aquatic environment – Category 1
• Hazardous to the aquatic environment – Category 1

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.