2-Hydroxy-5-nitrobenzaldehyde
2-Hydroxy-5-nitrobenzaldehyde (CAS: 97-51-8), with the molecular formula HOC6H3(NO2)CHO and a molar mass of 167.12 g/mol, is a valuable organic intermediate. This compound serves as a key building block in chemical synthesis, particularly within the realm of organic chemistry. Its structure, featuring both aldehyde and hydroxyl functionalities alongside a nitro group, makes it suitable for a variety of derivatisations and reactions.
- IUPAC
- 5-Nitrosalicylaldehyde
- Synonyms
- 5-Nitrosalicylaldehyde

Organic Synthesis Intermediate
Utilised as a precursor in the synthesis of more complex organic molecules. Its reactive functional groups allow for diverse chemical transformations.
Building Block for Heterocycles
Can be employed in the construction of various heterocyclic compounds, important in medicinal chemistry and material science.
Research and Development
Serves as a reagent in academic and industrial research labs for exploring new synthetic pathways and developing novel compounds.
| Molecular weight | 167.12 |
|---|---|
| Linear formula | HOC6H3(NO2)CHO |
| Assay | 98% |
| Melting point | 125-128 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- 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) | 36/38 |
| 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-5-nitrobenzaldehyde used for?
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2-Hydroxy-5-nitrobenzaldehyde is primarily used as an intermediate in organic synthesis and as a building block for creating more complex organic molecules and heterocyclic compounds. It is also valuable in research and development settings.
What are the CAS number and formula for 2-Hydroxy-5-nitrobenzaldehyde?
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The CAS number for 2-Hydroxy-5-nitrobenzaldehyde is 97-51-8, and its linear formula is HOC6H3(NO2)CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Hydroxy-5-nitrobenzaldehyde with a minimum assay of 98%. This product is intended for laboratory and research use and is not supplied as USP, BP, or EP grade.
How should 2-Hydroxy-5-nitrobenzaldehyde be handled safely?
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2-Hydroxy-5-nitrobenzaldehyde is classified as harmful if swallowed and causes skin and eye irritation (H302, H315, H319). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be worn. Handle in a well-ventilated area and avoid dust formation. In case of eye contact, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do. Continue rinsing.
Is 2-Hydroxy-5-nitrobenzaldehyde a controlled substance?
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Based on the provided data, 2-Hydroxy-5-nitrobenzaldehyde is not listed as a controlled substance.
How is 2-Hydroxy-5-nitrobenzaldehyde packed and exported by TSS?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures that chemicals are appropriately packed for safe transit and export in compliance with international regulations.
How can I request a sample or quote for 2-Hydroxy-5-nitrobenzaldehyde?
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To request a sample or a quote for 2-Hydroxy-5-nitrobenzaldehyde, please contact our sales team through the website or via direct inquiry, providing your contact details and required quantity.
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