Molekula
6-Chloroindole-2-carboxylic acid
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
6-Chloroindole-2-carboxylic acid is a chlorinated heterocyclic compound primarily used as an intermediate in pharmaceutical synthesis, particularly for APIs and agrochemicals. It appears as a pale solid with limited solubility in water. CAS 16732-75-5, molecular formula C9H6ClNO2, MW 195.60 g/mol. Store at ambient conditions under dry conditions. Signal word: Warning (may cause skin/eye irritation). Molekula supplies 6-Chloroindole-2-carboxylic acid 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
On backorder — expected to ship by 25 November 2026
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.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 g — £93.30 per pack ex VAT · £111.96 inc. VAT
Need a different quantity or pack?
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 | white to yellow solid |
| Identification | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
Identification
| Property | Value |
|---|---|
| SKU | 77928181 |
| CAS Number | 16732-75-5 |
| IUPAC Name | 6-chloro-1H-indole-2-carboxylic acid |
| EC Number | 240-799-5 |
| Molecular Formula | C9H6ClNO2 |
| Molecular Weight | 195.60 |
| Exact Mass | 195.0087 |
| SMILES | C1=CC2=C(C=C1Cl)NC(=C2)C(=O)O |
| InChIKey | BKPSJOSKWKTWAG-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H6ClNO2/c10-6-2-1-5-3-8(9(12)13)11-7(5)4-6/h1-4,11H,(H,12,13) |
| PubChem CID | 85584 |
| REACH Code | Y113 |
| HTS Code | 2933.99.82.90 |
| Tariff Code | 2933998090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: 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.
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-Indole-2-carboxylic acid, 6-chloro-
- 2-carboxy-6-chloroindole
- 6-Chloro-1H-indole-2-carboxylic acid
- 6-chloro-2-indolecarboxylic acid
- Oprea1_764381
Frequently asked questions
What is 6-Chloroindole-2-carboxylic acid commonly used for?
This compound is primarily used in pharmaceutical research as a building block for synthesizing APIs, particularly in the development of indole-based drugs, and as an intermediate in agrochemical production.
What is the molecular formula and molecular weight of 6-Chloroindole-2-carboxylic acid?
The molecular formula is **C9H6ClNO2**, and the molecular weight is **195.60 g/mol**.
How should 6-Chloroindole-2-carboxylic acid be stored?
Store at **ambient temperature** in a cool, dry place, away from direct sunlight and incompatible substances. Ensure containers are tightly sealed.
What purity grades are available for this product?
Molekula supplies **pharmaceutical-grade (98%+ purity)** and **research-grade (95%+ purity)** for 6-Chloroindole-2-carboxylic acid. Let us know your specific application for recommendations.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk packaging options for 6-Chloroindole-2-carboxylic acid—contact our sales team for minimum order quantities (MOQs) and pricing tailored to your needs.
What documentation is provided with an order of this product?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability. Additional certifications (e.g., GMP) are available upon request.
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.