Benzalphthalide
Benzalphthalide (CAS 575-61-1), with the molecular formula C15H10O2 and a molecular weight of 222.24 g/mol, is a chemical compound identified as a lactone. It serves as a versatile organic building block in chemical synthesis, particularly within research and development settings. Its structural characteristics make it valuable for creating more complex molecules.
- IUPAC
- 3-Benzylidenephthalide
- Synonyms
- 3-Benzylidenephthalide

Organic Synthesis Intermediate
Benzalphthalide is utilised as an intermediate in the synthesis of various organic compounds. Its reactivity allows for further chemical transformations to build more complex molecular structures.
Research and Development
This compound is employed in laboratory settings for research purposes. It aids in the exploration of new chemical reactions and the development of novel materials.
Building Block for Heterocycles
As a lactone with specific functional groups, Benzalphthalide can be a precursor for synthesizing heterocyclic compounds, which are important in medicinal chemistry and materials science.
| Molecular weight | 222.24 |
|---|---|
| Empirical formula | C15H10O2 |
| Melting point | 99-102 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| 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 Benzalphthalide used for?
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Benzalphthalide is primarily used as an intermediate in organic synthesis and as a building block in chemical research and development for creating more complex molecules.
What are the CAS number and formula for Benzalphthalide?
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The CAS number for Benzalphthalide is 575-61-1, and its molecular formula is C15H10O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Benzalphthalide typically as a research or technical grade material. We do not represent it as USP, BP, or EP grade unless explicitly stated.
How should Benzalphthalide be handled safely?
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Safe handling of Benzalphthalide requires the use of eyeshields and gloves. A respirator filter of type N95 (US) or P1 (EN143) is recommended. It is classified with WGK 2 in Germany, indicating it is hazardous to water.
Is Benzalphthalide a controlled substance?
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The provided data does not indicate that Benzalphthalide is a controlled substance.
How is Benzalphthalide shipped and exported?
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Tech Serve Solutions, as a global supplier and exporter, ships and exports Benzalphthalide adhering to all relevant international regulations for chemical transport.
How can I request a sample or quote for Benzalphthalide?
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To request a sample or quote for Benzalphthalide, please contact our sales department through the website or via direct inquiry.
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