1,3-Indandione
1,3-Indandione (CAS: 606-23-5) is a notable organic compound with the molecular formula C9H6O2 and a molecular weight of 146.14 g/mol. It is characterised by its dicarbonyl structure within an indane ring system. Primarily employed as a versatile building block in organic synthesis, it serves as a key intermediate in the preparation of more complex molecules, particularly in the fields of pharmaceuticals and materials science. Its reactivity makes it valuable for various chemical transformations.
- IUPAC
- 1,3-Dioxoindan
- Synonyms
- 1,3-Dioxoindan1,3-Indanedione

Organic Synthesis Intermediate
1,3-Indandione functions as a crucial building block in the synthesis of various organic compounds. Its active methylene group and dicarbonyl functionality allow for diverse chemical reactions, including alkylation, condensation, and cyclisation.
Pharmaceutical Precursor
It is utilised in the development pathways for certain pharmaceutical agents. The indandione scaffold can be incorporated into molecules designed for specific biological activities, contributing to drug discovery efforts.
Materials Science
The compound can be a precursor for novel materials. Its structural features lend themselves to the synthesis of organic dyes, polymers, and other functional materials with tailored properties.
| Molecular weight | 146.14 |
|---|---|
| Empirical formula | C9H6O2 |
| Assay | 97% |
| Melting point | 129-132 °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 1,3-Indandione primarily used for?
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1,3-Indandione is primarily used as a versatile building block and intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and advanced materials.
What are the CAS number and chemical formula for 1,3-Indandione?
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The CAS number for 1,3-Indandione is 606-23-5, and its chemical formula is C9H6O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3-Indandione with an assay of 97%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should 1,3-Indandione be handled safely?
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Handle 1,3-Indandione with appropriate personal protective equipment, including eyeshields and gloves. Use a type N95 (US) or type P1 (EN143) respirator filter when necessary. Refer to the Safety Data Sheet for comprehensive handling instructions.
Is 1,3-Indandione a controlled substance?
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The provided data does not indicate that 1,3-Indandione is a controlled substance.
How is 1,3-Indandione packed and shipped?
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1,3-Indandione is carefully packed to ensure safe transit and is available for export globally by Tech Serve Solutions.
How can I request a quote or sample for 1,3-Indandione?
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Please contact Tech Serve Solutions directly through our website or sales channels to request a quote or a sample of 1,3-Indandione.
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