Molekula
3-Methylindole
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
3-Methylindole, also known as skatole, is a heterocyclic organic compound primarily used in fragrance synthesis, flavor chemistry, and as an analytical standard in biochemical research. It contributes to the characteristic odor of feces and is a key intermediate in producing fine chemicals and pharmaceuticals. This chemical has a CAS number of 83-34-1, with the molecular formula C9H9N and a molecular weight of 131.17 g/mol. It is stable at ambient storage conditions and carries a signal word of "Warning" for safety classification. Molekula supplies 3-Methylindole 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
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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1 g — £26.40 per pack ex VAT · £31.68 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Off white, yellow to orange crystalline solid |
| Assay/Purity | ≥ 98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 132 °C |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystalline substance, browning upon aging. |
| Odour | Fecal odor |
| Melting Point | 95 °C |
| Boiling Point | 265-266 °C at 755 mmHg |
| Vapour Pressure | 0.0055 mmHg |
Source: PubChem CID 6736 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 90028358 |
| CAS Number | 83-34-1 |
| IUPAC Name | 3-methyl-1H-indole |
| EC Number | 201-471-7 |
| Molecular Formula | C9H9N |
| Molecular Weight | 131.17 |
| Exact Mass | 131.0735 |
| SMILES | CC1=CNC2=CC=CC=C12 |
| InChIKey | ZFRKQXVRDFCRJG-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H9N/c1-7-6-10-9-5-3-2-4-8(7)9/h2-6,10H,1H3 |
| PubChem CID | 6736 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933.99.8290 |
| Tariff Code | 2933992000 |
Safety & GHS
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+341 IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
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.
Synonyms
- 1H-Indole, 3-methyl-
- 3-Methyl-1H-indole
- 3-MI
- beta-Methylindole
- FEMA No. 3019
- Indole, 3-methyl-
- Scatole
- Skatol
- Skatole
- SKATOLUM
Frequently asked questions
What is 3-Methylindole (CAS 83-34-1) commonly used for?
3-Methylindole is primarily used as a precursor in the synthesis of pharmaceuticals, agrochemicals, and as a building block for organic compounds like skatole derivatives.
What is the molecular formula and molecular weight of 3-Methylindole?
The molecular formula is **C₉H₉N**, and the molecular weight is **131.17 g/mol**.
What safety classification does 3-Methylindole have, and how should it be stored?
The signal word is **Warning**, and it should be stored at **ambient conditions** in a cool, dry place, away from incompatible substances.
Does Molekula offer 3-Methylindole in different grades (e.g., reagent, pharmaceutical, technical)?
Molekula supplies **high-purity 3-Methylindole** suitable for research and synthesis; contact us for specific grade inquiries.
Can Molekula supply 3-Methylindole in bulk quantities?
Yes, we offer **bulk quantities** of 3-Methylindole—please inquire for pricing and lead times tailored to your needs.
What documentation is provided with an order of 3-Methylindole?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation for 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.