Molekula
Indole-5-carboxaldehyde (5-Formylindole)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Indole-5-carboxaldehyde (5-Formylindole) is an aromatic heterocyclic compound used primarily in organic synthesis, pharmaceutical research, and as a building block for complex indole derivatives. It serves as a key intermediate in the production of biologically active compounds, including potential drug candidates. This chemical has a CAS number of 1196-69-6, a molecular formula of C9H7NO, and a molecular weight of 145.16 g/mol. It should be stored at ambient conditions and handled with caution, as indicated by its warning signal word. Molekula supplies Indole-5-carboxaldehyde from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
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5 g — £77.70 per pack ex VAT · £93.24 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | Orange to tan powder |
| Melting Point | 98 - 103°C |
| Purity (HPLC) | ≥ 98.0% |
| Identification (IR) | Conforms to Reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 30863317 |
| CAS Number | 1196-69-6 |
| IUPAC Name | 1H-indole-5-carbaldehyde |
| Molecular Formula | C9H7NO |
| Molecular Weight | 145.16 |
| Exact Mass | 145.0528 |
| SMILES | C1=CC2=C(C=CN2)C=C1C=O |
| InChIKey | ADZUEEUKBYCSEY-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H7NO/c11-6-7-1-2-9-8(5-7)3-4-10-9/h1-6,10H |
| PubChem CID | 589040 |
| REACH Code | Y110 |
| HTS Code | 2933.99.8290 |
| Tariff Code | 2933998090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 1H-indol-5-carbaldehyde
- 1H-Indole-5-carbaldehyde
- 1h-indole-5-carboxaldehyde
- 5-Formylindole
- 5-INDOLECARBOXALDEHYDE
- ADZUEEUKBYCSEY-UHFFFAOYSA-
- Indole-5-aldehyde
- indole-5-carbaldehyde
- Indole-5-carboaldehyde
- Indole-5-carboxaldehyde
Frequently asked questions
What is Indole-5-carboxaldehyde (5-Formylindole) commonly used for?
Indole-5-carboxaldehyde is primarily used as a building block in organic synthesis, including the preparation of pharmaceuticals, agrochemicals, and fluorescent dyes, as well as a key intermediate in the synthesis of indole-based compounds.
What is the chemical formula and molecular weight of Indole-5-carboxaldehyde?
The chemical formula is **C₉H₇NO**, and the molecular weight is **145.16 g/mol**.
What safety classification (signal word) applies to Indole-5-carboxaldehyde?
The signal word for Indole-5-carboxaldehyde is **Warning**, indicating it requires careful handling but is not classified as highly hazardous.
How should Indole-5-carboxaldehyde be stored?
It should be stored at **ambient temperature** in a cool, dry place, away from incompatible substances and moisture.
Does Molekula supply Indole-5-carboxaldehyde in bulk quantities?
Yes, Molekula can provide Indole-5-carboxaldehyde in bulk, with quantities tailored to your specific requirements—please contact us for details.
What documentation is provided with an order of Indole-5-carboxaldehyde?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and a **batch-specific quality report** to ensure compliance and traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.