Molekula
5-Fluoroisatin
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
5-Fluoroisatin is a fluorinated derivative of isatin, widely used in organic synthesis, pharmaceutical research, and as a building block for fluorescent dyes and agrochemicals. It serves as a key intermediate in the preparation of heterocyclic compounds and is valued for its reactivity in electrophilic substitution reactions. Catalogue details: CAS 443-69-6, molecular formula C8H4FNO2, molecular weight 165.12 g/mol, stored at ambient conditions. Hazard classification includes a signal word of Warning for skin, eye and respiratory irritation (H315, H319, H335). Molekula supplies 5-Fluoroisatin 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 24 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.
-
5 g — £30.90 per pack ex VAT · £37.08 inc. VAT
-
25 g — £85.10 per pack ex VAT · £102.12 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.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Red crystalline powder |
| Identification | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 27999310 |
| CAS Number | 443-69-6 |
| IUPAC Name | 5-fluoro-1H-indole-2,3-dione |
| Molecular Formula | C8H4FNO2 |
| Molecular Weight | 165.12 |
| Exact Mass | 165.0226 |
| SMILES | C1=CC2=C(C=C1F)C(=O)C(=O)N2 |
| InChIKey | GKODDAXOSGGARJ-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H4FNO2/c9-4-1-2-6-5(3-4)7(11)8(12)10-6/h1-3H,(H,10,11,12) |
| PubChem CID | 236566 |
| REACH Code | Y113 |
| HTS Code | 2933798500 |
| Tariff Code | 2933790090 |
Safety & GHS
-
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
- 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)
We haven't published a Safety Data Sheet for this product yet. Ask us and we'll send you one.
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-2,3-DIONE, 5-FLUORO-
- 5-fluoranyl-1~{H}-indole-2,3-dione
- 5-fluoro-1H-benzo[d]azoline-2,3-dione
- 5-Fluoro-1H-indole-2,3-dione
- 5-fluoro-2,3-dihydro-1H-indole-2,3-dione
- 5-fluoro-2,3-indolinedione
- 5-Fluoroindole-2,3-dione
- 5-fluoroindoline-2,3-dione
- 5-fluroisatin
Frequently asked questions
What is 5-Fluoroisatin commonly used for?
5-Fluoroisatin is primarily used as a reagent in organic synthesis, particularly in the preparation of fluorinated heterocycles, pharmaceutical intermediates, and fluorescent dyes.
What is the molecular formula and molecular weight of 5-Fluoroisatin?
The molecular formula is C₈H₄FNO₂, and the molecular weight is 165.12 g/mol.
How should 5-Fluoroisatin be stored?
Store 5-Fluoroisatin at ambient temperature in a cool, dry place, away from incompatible substances.
What grades of purity are available for 5-Fluoroisatin?
Molekula supplies 5-Fluoroisatin in high-purity (98%+) analytical and synthetic grades—contact us for exact specifications.
Can Molekula supply 5-Fluoroisatin in bulk quantities?
Yes, we offer bulk packaging options for 5-Fluoroisatin—please inquire for minimum order quantities and pricing.
What documentation is provided with an order of 5-Fluoroisatin?
Each order includes a Certificate of Analysis (CoA), Safety Data Sheet (SDS), 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.