2-Hydroxy-4-methyl-3-nitropyridine
2-Hydroxy-4-methyl-3-nitropyridine (CAS: 21901-18-8; Formula: C6H6N2O3; MW: 154.12) is a pyridine derivative. This compound is primarily used as a building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. Its specific structural features make it a valuable intermediate for the development of more complex molecules in research and development settings.
- IUPAC
- 4-Methyl-3-nitro-2-pyridone

Organic Synthesis Intermediate
Serves as a key intermediate in the synthesis of complex organic molecules. Its functional groups allow for diverse chemical transformations.
Heterocyclic Chemistry Research
Utilised in academic and industrial research focused on the synthesis and study of novel pyridine-based heterocyclic compounds.
Pharmaceutical Building Block
A potential precursor in the early stages of drug discovery and development, contributing to the construction of pharmaceutically relevant scaffolds.
| Molecular weight | 154.12 |
|---|---|
| Empirical formula | C6H6N2O3 |
| Assay | 98% |
| Melting point | 229-232 °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 2-Hydroxy-4-methyl-3-nitropyridine used for?
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2-Hydroxy-4-methyl-3-nitropyridine is primarily used as a building block in organic and heterocyclic chemical synthesis.
What are the CAS number and formula for 2-Hydroxy-4-methyl-3-nitropyridine?
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The CAS number is 21901-18-8 and the molecular formula is C6H6N2O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Hydroxy-4-methyl-3-nitropyridine with an assay of 98%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated.
How should 2-Hydroxy-4-methyl-3-nitropyridine be handled safely?
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This compound may cause skin, eye, and respiratory irritation (H315, H319, H335). Handle with appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, in a well-ventilated area.
Is 2-Hydroxy-4-methyl-3-nitropyridine exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 2-Hydroxy-4-methyl-3-nitropyridine.
How can I request a sample or quote for 2-Hydroxy-4-methyl-3-nitropyridine?
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Please contact our sales team via the website or direct email to request a sample or obtain a quotation for 2-Hydroxy-4-methyl-3-nitropyridine.
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