Indole-7-carboxaldehyde
Indole-7-carboxaldehyde (CAS: 1074-88-0), a key heterocyclic building block with the molecular formula C9H7NO and a molecular weight of 145.16 g/mol, is supplied by TSS. This compound features an indole core functionalised with an aldehyde group at the 7-position. It serves as a crucial intermediate in organic synthesis, particularly in the preparation of complex fused ring systems and pharmacologically active molecules.
- IUPAC
- 7-Formylindole

Synthesis of Fused Pyrroloquinolinedicarboxylates
Indole-7-carboxaldehyde is utilized in the efficient synthesis of fused pyrroloquinolinedicarboxylates. This application involves its reaction with acetylenedicarboxylates and triphenylphosphine, highlighting its role as a versatile building block in constructing complex polycyclic structures.
Intermediate in Organic Synthesis
As a functionalised indole derivative, this compound is a valuable intermediate for further chemical transformations. It enables the introduction of the indole moiety into larger molecules, facilitating the development of novel organic compounds for research and development.
Research and Development
This chemical is employed in academic and industrial research settings for the exploration of new synthetic routes and the discovery of novel compounds. Its specific structural features make it suitable for studies in medicinal chemistry and materials science.
| Molecular weight | 145.16 |
|---|---|
| Empirical formula | C9H7NO |
| Assay | 97% |
| Application | Used in an efficient synthesis of fused pyrroloquinolinedicarboxylates from acetylenedicarboxylates and triphenylphosphine.11 |
| Melting point | 87-91 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H317May cause an allergic skin reaction
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-43 |
| Safety statements (S) | 36/37 |
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 Indole-7-carboxaldehyde used for?
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Indole-7-carboxaldehyde (CAS: 1074-88-0) is primarily used as an intermediate in organic synthesis, notably in the efficient preparation of fused pyrroloquinolinedicarboxylates from acetylenedicarboxylates and triphenylphosphine. It is also valuable for the synthesis of other complex organic molecules in research and development.
What are the CAS number and formula for Indole-7-carboxaldehyde?
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The CAS number for Indole-7-carboxaldehyde is 1074-88-0 and its molecular formula is C9H7NO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Indole-7-carboxaldehyde with an assay of 97%. This product is a technical/research grade chemical and TSS does not represent it as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety precautions for handling Indole-7-carboxaldehyde?
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Indole-7-carboxaldehyde is classified as a Warning substance with hazards H302 (Harmful if swallowed) and H317 (May cause an allergic skin reaction). Appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, faceshields, and gloves, should be worn. Handle with adequate ventilation and avoid contact with skin and eyes.
How is Indole-7-carboxaldehyde packed and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents, ensuring appropriate packing and adherence to international shipping regulations for compounds like Indole-7-carboxaldehyde.
How can I request a sample or quote for Indole-7-carboxaldehyde?
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To request a sample or quote for Indole-7-carboxaldehyde, please contact our sales team through the website or via email, providing your specific requirements and shipping details.
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