2-Naphthaldehyde
2-Naphthaldehyde (CAS: 66-99-9, C10H7CHO) is an aromatic aldehyde with a molecular weight of 156.18 g/mol. It is a valuable organic building block used extensively in chemical synthesis. This compound serves as a crucial intermediate in the production of various organic molecules and fine chemicals, finding applications in research and development settings. Its characteristic aldehyde functionality makes it amenable to a wide range of chemical transformations.
- IUPAC
- β-Naphthaldehyde
- Synonyms
- β-Naphthaldehyde

Organic Synthesis Intermediate
2-Naphthaldehyde is a versatile intermediate in organic synthesis. It is employed in the preparation of complex molecules, including pharmaceuticals and speciality chemicals, due to the reactivity of its aldehyde group.
Dye and Pigment Precursor
The naphthalene core and reactive aldehyde group make 2-Naphthaldehyde a useful precursor in the synthesis of certain dyes and pigments. Its derivatives can exhibit specific chromophoric properties.
Research and Development
Utilised in academic and industrial research laboratories, 2-Naphthaldehyde serves as a starting material for exploring new chemical pathways and developing novel compounds with potential applications.
| Molecular weight | 156.18 |
|---|---|
| Linear formula | C10H7CHO |
| Assay | 98% |
| Grade | purum |
| Storage temperature | −20°C |
| Melting point | 58-61 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 3335 |
| Water hazard class (WGK, DE) | 3 |
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-Naphthaldehyde primarily used for?
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2-Naphthaldehyde is primarily used as an intermediate in organic synthesis for the preparation of various organic molecules, dyes, pigments, and in research and development.
What are the CAS number and chemical formula for 2-Naphthaldehyde?
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The CAS number for 2-Naphthaldehyde is 66-99-9, and its chemical formula is C10H7CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Naphthaldehyde with a 'purum' grade and an assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should 2-Naphthaldehyde be handled safely?
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When handling 2-Naphthaldehyde, it is essential to wear safety equipment including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used. Refer to the Safety Data Sheet for comprehensive handling information.
Is 2-Naphthaldehyde a regulated or controlled substance?
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The provided data does not indicate that 2-Naphthaldehyde is a regulated or controlled substance under standard chemical regulations.
How is 2-Naphthaldehyde shipped and exported by TSS?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. 2-Naphthaldehyde is shipped and exported adhering to all relevant international shipping and customs regulations for chemical products.
How can I request a quote or sample of 2-Naphthaldehyde?
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To request a quote or a sample of 2-Naphthaldehyde, please contact our sales department via the website or direct inquiry channels.
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