3,5-Dinitro-o-toluic acid
3,5-Dinitro-o-toluic acid (CAS: 28169-46-2) is a specialised organic compound with the linear formula (O2N)2C6H2(CH3)CO2H and a molecular weight of 226.14 g/mol. This dinitrated carboxylic acid derivative is primarily utilised as a building block in organic synthesis. Its specific chemical structure lends itself to various applications within chemical research and development, particularly in the creation of more complex organic molecules and intermediates.
- Synonyms
- (O2N)2C6H2(CH3)CO2H

Organic Synthesis Intermediate
3,5-Dinitro-o-toluic acid serves as a valuable intermediate in multi-step organic syntheses. Its functional groups, including the carboxylic acid and nitro substituents, allow for diverse chemical transformations.
Research and Development
This compound is employed in laboratory settings for research purposes, contributing to the development of new chemical entities and materials. It is a key component in academic and industrial R&D projects.
Synthesis of Heterocycles
Specifically, 3,5-Dinitro-o-toluic acid has been documented for use in the synthesis of isoquinolone derivatives, highlighting its utility in the construction of specific heterocyclic ring systems.
| Molecular weight | 226.14 |
|---|---|
| Linear formula | (O2N)2C6H2(CH3)CO2H |
| Assay | 98% |
| Application | 3,5-Dinitro-o-toluic acid was used in the synthesis of isoquinolone1. |
| Melting point | 205-207 °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) | 26-37/39 |
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 3,5-Dinitro-o-toluic acid used for?
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3,5-Dinitro-o-toluic acid is used as a building block and intermediate in organic synthesis, including the preparation of isoquinolone derivatives.
What is the CAS number and chemical formula for 3,5-Dinitro-o-toluic acid?
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The CAS number is 28169-46-2, and its linear formula is (O2N)2C6H2(CH3)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5-Dinitro-o-toluic acid with an assay of 98%. This product is typically considered a research or technical grade chemical and is not represented as USP, BP, EP, or pharmacopoeia grade.
How should 3,5-Dinitro-o-toluic acid be handled?
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According to GHS, 3,5-Dinitro-o-toluic acid is a warning substance (GHS07) with hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Recommended personal protective equipment includes a dust mask (type N95 US), eyeshields, and gloves. Handle in a well-ventilated area.
Is 3,5-Dinitro-o-toluic acid exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 3,5-Dinitro-o-toluic acid.
How can I request a sample or quote for 3,5-Dinitro-o-toluic acid?
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To request a sample or quote, please contact our sales team through the website or by phone, providing the product name and CAS number.
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