Chromone
Chromone (CAS 491-38-3), with the molecular formula C9H6O2 and a molecular weight of 146.14 g/mol, is a heterocyclic organic compound. It serves as a fundamental building block in organic synthesis, particularly in the preparation of various benzopyran derivatives. Its structure makes it a valuable intermediate for researchers and chemists developing novel compounds for diverse scientific applications.
- IUPAC
- 1-Benzopyran-4-one

Organic Synthesis Intermediate
Chromone is utilised as a key intermediate in the synthesis of more complex organic molecules. Its reactive sites allow for facile derivatisation, enabling the construction of diverse chemical scaffolds.
Pharmaceutical Research
As a benzopyran derivative, chromone and its analogues are investigated for potential biological activities. It serves as a starting material or core structure for medicinal chemistry research aiming to discover new therapeutic agents.
Material Science
The chromone scaffold can be incorporated into polymers or other advanced materials, potentially influencing their optical or electronic properties. This is an area of emerging research interest.
| Molecular weight | 146.14 |
|---|---|
| Empirical formula | C9H6O2 |
| Assay | 99% |
| Melting point | 55-60 °C(lit.) |
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 Chromone primarily used for?
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Chromone is primarily used as a building block and intermediate in organic synthesis, particularly for creating benzopyran derivatives relevant to pharmaceutical research and material science.
What are the CAS number and formula for Chromone?
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The CAS number for Chromone is 491-38-3, and its molecular formula is C9H6O2.
What grade and purity does Tech Serve Solutions supply for Chromone?
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Tech Serve Solutions supplies Chromone with an assay of 99%. This product is intended for research and laboratory use and is not represented as USP, BP, or EP grade.
What are the main safety hazards associated with Chromone?
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Chromone is classified with a WGK Germany rating of 3, indicating it is hazardous to water. Appropriate handling procedures should be followed to prevent environmental release.
How is Chromone typically packed and exported by TSS?
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Chromone is carefully packed to ensure integrity during transit and is exported globally by TSS, adhering to all relevant shipping regulations for chemical compounds.
How can I request a quote or sample for Chromone?
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To request a quote or sample of Chromone, please use the contact form on our website or reach out to our sales team directly.
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