1,2-dinitrosobenzene

C6H4N2O2

CAS25550-55-4

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Identification

CAS Number
25550-55-4
EC Number
203-272-0
UN Number
0406
PubChem CID
24259

Physical-chemical properties

Molecular Formula
C6H4N2O2
Molar Mass
136.11 g/mol
IUPAC Name
1,2-dinitrosobenzene

Chemical Identifiers

InChI
InChI=1S/C6H4N2O2/c9-7-5-3-1-2-4-6(5)8-10/h1-4H
InChI Key
XYLFFOSVQCBSDT-UHFFFAOYSA-N

Overview

1,2-dinitrosobenzene (CAS 25550-55-4) is an aromatic nitroso compound characterized by two nitroso functional groups attached to adjacent positions on a benzene ring. This specialized chemical intermediate belongs to the family of dinitrosobenzenes, featuring a molecular formula of C6H4N2O2 and a molecular weight of 136.11 g/mol. The compound's structure consists of a benzene ring with two nitroso groups (-NO) positioned ortho to each other, creating unique reactivity patterns that distinguish it from other nitroaromatic compounds. As part of the broader category of nitroaromatic chemicals, 1,2-dinitrosobenzene shares certain characteristics with related compounds such as 2,4,6-trinitrobenzoic acid, though its dinitroso structure provides distinct chemical properties. The compound exhibits typical properties of aromatic nitroso compounds, including sensitivity to light and temperature variations. Its ADR Class 1 classification indicates specific transportation requirements that must be carefully observed during handling and shipping. The ortho positioning of the nitroso groups influences both its chemical reactivity and physical properties, making it particularly valuable for specific synthetic applications where this geometric arrangement is crucial. In industrial applications, 1,2-dinitrosobenzene serves primarily as a chemical intermediate in organic synthesis, particularly in the production of specialized dyes and pharmaceutical precursors. The compound also finds use in research applications where its unique dinitroso functionality enables specific chemical transformations. Additionally, it may be employed in the synthesis of heterocyclic compounds where the ortho-dinitroso arrangement facilitates ring-forming reactions. OYSI maintains availability of 1,2-dinitrosobenzene for qualified industrial customers requiring this specialized aromatic intermediate for their manufacturing processes.

Safety & Classification

No Hazard Classification

This substance is not classified as hazardous according to CLP Regulation (EC) No 1272/2008.

Transport (ADR)

UN Number0406
ADR Class1
Packing Group
Tunnel CodeC5000D
Proper Shipping NameDinitrosobenzen
Marine PollutantNo

Frequently Asked Questions

What is 1,2-dinitrosobenzene?

1,2-dinitrosobenzene is an organic chemical compound with the molecular formula C6H4N2O2 and CAS number 25550-55-4. This aromatic compound features a benzene ring with two nitroso functional groups (-NO) attached at adjacent positions (1,2-substitution pattern). With a molecular weight of 136.11 g/mol, it belongs to the class of nitrosobenzene derivatives used in various chemical applications and research purposes.

What are the physicochemical properties of 1,2-dinitrosobenzene?

1,2-dinitrosobenzene is typically a solid crystalline compound at room temperature with a characteristic yellowish to brownish color. The presence of two nitroso groups makes it polar, affecting its solubility properties in different solvents. Like many nitroso compounds, it may have a distinctive odor and exhibits specific melting and boiling points. Its molecular structure with adjacent nitroso groups influences its reactivity and stability under various conditions.

What is 1,2-dinitrosobenzene used for?

1,2-dinitrosobenzene is primarily used as an intermediate in organic synthesis and chemical research applications. It serves as a precursor for the production of various aromatic compounds and can be utilized in the synthesis of dyes, pharmaceuticals, and other specialty chemicals. The compound's unique dinitroso structure makes it valuable for specific chemical transformations and as a building block in complex organic molecule preparation.

How to handle 1,2-dinitrosobenzene safely?

1,2-dinitrosobenzene should be handled with appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and lab coats. Work should be conducted in well-ventilated areas or under fume hoods to avoid inhalation exposure. Use non-sparking tools and avoid contact with heat sources, strong oxidizers, or reducing agents. Always follow good laboratory practices and ensure proper training before handling this chemical compound.

How to store 1,2-dinitrosobenzene correctly?

1,2-dinitrosobenzene should be stored in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers tightly closed and store separately from incompatible materials such as strong oxidizers, reducing agents, and acids. The storage area should be equipped with appropriate spill containment measures and maintained at stable temperatures to prevent decomposition or unwanted reactions.

What to do in case of contact with 1,2-dinitrosobenzene?

In case of skin contact with 1,2-dinitrosobenzene, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for 15-20 minutes. If inhaled, move to fresh air immediately. In case of ingestion, do not induce vomiting and seek immediate medical attention. Always consult safety data sheets for specific first aid measures.

How to dispose of 1,2-dinitrosobenzene properly?

1,2-dinitrosobenzene must be disposed of according to local, national, and international waste regulations. The compound should be treated as hazardous chemical waste and handed over to licensed waste disposal companies. Never dispose of it down drains or in regular trash. Contact local environmental authorities for specific disposal requirements and ensure proper documentation of waste disposal activities for regulatory compliance.

How to transport 1,2-dinitrosobenzene?

1,2-dinitrosobenzene is classified under ADR Class 1 for transport purposes, indicating it falls under explosive materials regulations. Transportation must comply with dangerous goods regulations including proper packaging, labeling, and documentation. Use UN-approved packaging and ensure proper segregation from incompatible materials during transport. Drivers and handlers must have appropriate dangerous goods training and certification for Class 1 materials.

Is 1,2-dinitrosobenzene subject to specific regulations?

1,2-dinitrosobenzene is subject to various chemical regulations including REACH registration requirements in Europe and classification under CLP regulation. It is not currently listed as an SVHC (Substance of Very High Concern). Users must comply with occupational safety regulations, environmental protection laws, and proper chemical management practices. Always check current regulatory status as requirements may change over time.

Where to buy 1,2-dinitrosobenzene in Europe?

1,2-dinitrosobenzene is available through OYSI, a trusted European distributor of chemical products. OYSI provides reliable supply chains and technical support for industrial and research customers across Europe. As a specialized chemical distributor, OYSI ensures proper handling, packaging, and documentation for regulatory compliance. Contact OYSI directly for availability, specifications, and delivery options for your specific requirements.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.