1,2-Diamino-3,5-dimethylbenzene
1,2-Diamino-3,5-dimethylbenzene (CAS 3171-46-8) is an aromatic diamine with a molecular weight of 136.19 g/mol. This organic building block, supplied by TSS at a minimum purity of 96%, is primarily utilised in chemical synthesis. Its structure makes it a valuable intermediate for creating more complex molecules, particularly in research and development settings. The compound requires storage at 2-8°C to maintain its integrity.
- IUPAC
- 3,5-Dimethyl-1,2-phenylenediamine
- Synonyms
- 3171-46-8C8H12N23,5-Dimethyl-1,2-phenylenediamine

Organic Synthesis Intermediate
1,2-Diamino-3,5-dimethylbenzene serves as a key intermediate in the synthesis of various organic compounds. Its diamine functionality allows for reactions leading to heterocyclic structures and polymers.
Research and Development
This compound is employed in laboratory research for the development of new materials and chemical entities. Its specific substitution pattern offers unique reactivity for targeted synthetic pathways.
Building Block for Specialty Chemicals
As an organic building block, it is used in the construction of complex molecules for diverse chemical applications, contributing to advancements in material science and organic chemistry.
| Molecular weight | 136.19 |
|---|---|
| Empirical formula | C8H12N2 |
| Assay | 96% |
| Storage temperature | 2-8°C |
| Melting point | 73-78 °C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26 |
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 1,2-Diamino-3,5-dimethylbenzene used for?
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1,2-Diamino-3,5-dimethylbenzene is used as an intermediate in organic synthesis and for research and development purposes, serving as a building block for more complex molecules.
What are the CAS number and formula for 1,2-Diamino-3,5-dimethylbenzene?
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The CAS number for 1,2-Diamino-3,5-dimethylbenzene is 3171-46-8, and its empirical formula is C8H12N2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,2-Diamino-3,5-dimethylbenzene with a minimum assay of 96%. This product is suitable for laboratory and research applications; TSS does not represent it as USP, BP, or EP grade.
What are the safety and handling recommendations for 1,2-Diamino-3,5-dimethylbenzene?
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1,2-Diamino-3,5-dimethylbenzene is classified as harmful if swallowed and causes skin and serious eye irritation, and may cause respiratory irritation (H302-H315-H319-H335). Handle in a well-ventilated area, wear appropriate personal protective equipment, and avoid breathing dust/fume/gas/mist/vapours/spray. In case of contact with eyes, rinse cautiously with water for several minutes.
How is 1,2-Diamino-3,5-dimethylbenzene packed, shipped, and exported?
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1,2-Diamino-3,5-dimethylbenzene is carefully packaged to ensure safe transit and is available for global export by Tech Serve Solutions.
How can I request a sample or quote for 1,2-Diamino-3,5-dimethylbenzene?
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To request a sample or a quote for 1,2-Diamino-3,5-dimethylbenzene, please contact the Tech Serve Solutions sales team through our website or by phone.
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