3-Nitro-1,2-phenylenediamine
3-Nitro-1,2-phenylenediamine (CAS: 3694-52-8) is an organic compound with the linear formula O₂NC₆H₃(NH₂)₂ and a molecular weight of 153.14 g/mol. It functions as a crucial building block in chemical synthesis, particularly for nitrogen-containing compounds and polyamines. This chemical is supplied by Tech Serve Solutions with an assay of 98% for research and development purposes.
- IUPAC
- 1,2-Diamino-3-nitrobenzene,3-Nitro-o-phenylenediamine
- Synonyms
- 1,2-Diamino-3-nitrobenzene3-Nitro-o-phenylenediamineO2NC6H3(NH2)2

Chemical Synthesis Intermediate
3-Nitro-1,2-phenylenediamine serves as a valuable intermediate in the synthesis of complex organic molecules. Its reactive amine and nitro groups allow for diverse chemical transformations.
Building Block for Heterocycles
This compound is utilised as a building block for constructing various heterocyclic ring systems, which are important scaffolds in medicinal chemistry and materials science.
Precursor for Dyestuffs and Pigments
The structural features of 3-Nitro-1,2-phenylenediamine make it a potential precursor in the development of specialized dyes and pigments, owing to its chromophoric nitro group and amine functionalities.
| Molecular weight | 153.14 |
|---|---|
| Linear formula | O2NC6H3(NH2)2 |
| Assay | 98% |
| Melting point | 156-159 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 3-Nitro-1,2-phenylenediamine used for?
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3-Nitro-1,2-phenylenediamine is primarily used as a building block in chemical synthesis, particularly for nitrogen compounds, polyamines, and heterocyclic structures. It can also serve as a precursor in the development of dyestuffs.
What are the CAS number and formula for 3-Nitro-1,2-phenylenediamine?
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The CAS number for 3-Nitro-1,2-phenylenediamine is 3694-52-8. Its linear formula is O₂NC₆H₃(NH₂)₂.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Nitro-1,2-phenylenediamine with an assay of 98%. This product is intended for research and laboratory use and is not represented as USP, BP, EP, or other pharmacopoeia grades.
How should 3-Nitro-1,2-phenylenediamine be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure good ventilation. This compound may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335).
Is 3-Nitro-1,2-phenylenediamine exported by TSS?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 3-Nitro-1,2-phenylenediamine.
How can I request a sample or quote for 3-Nitro-1,2-phenylenediamine?
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To request a sample or a quote, please contact our sales department through the website or by calling our office. Our team will assist you promptly.
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