Molekula
2-Iodothiophene
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
2-Iodothiophene is an organosulfur compound featuring an iodine substituent on the thiophene ring, widely used in organic synthesis, pharmaceutical intermediates, and materials science for its reactivity in coupling reactions. This high-purity chemical has a CAS number of 3437-95-4, a molecular formula of C4H3IS, and a molecular weight of 210.04 g/mol. It must be stored between 2–8°C and carries a **Danger** signal word due to its hazardous properties. Molekula supplies 2-Iodothiophene 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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25 g — £43.40 per pack ex VAT · £52.08 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 | Liquid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 71 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 22122551 |
| CAS Number | 3437-95-4 |
| IUPAC Name | 2-iodothiophene |
| EC Number | 222-342-1 |
| Molecular Formula | C4H3IS |
| Molecular Weight | 210.04 |
| Exact Mass | 209.9 |
| SMILES | C1=CSC(=C1)I |
| InChIKey | ROIMNSWDOJCBFR-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H3IS/c5-4-2-1-3-6-4/h1-3H |
| PubChem CID | 18921 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2934.99.1800 |
| Tariff Code | 2934999090 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
Hazard statements
- H227 Combustible liquid
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
- H335 May cause respiratory irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
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.
Synonyms
- 2-Iodothiophene (Stabilized with copper)
- 2-Iodothiophene over Cu
- 2-Iodothophene; 2-iodo-thiophen
- 2-Thienyl iodide
- alpha-Iodothiophene
- Iodothiophene
- ROIMNSWDOJCBFR-UHFFFAOYSA-N
- Thiophene, 2-iodo-
- Thiophene, iodo-
Frequently asked questions
What is 2-Iodothiophene commonly used for?
2-Iodothiophene is primarily used as a building block in organic synthesis, particularly for the preparation of pharmaceuticals, agrochemicals, and advanced materials like conductive polymers.
What is the chemical formula and molecular weight of 2-Iodothiophene?
The chemical formula is **C₄H₃IS** and the molecular weight is **210.04 g/mol**.
How should 2-Iodothiophene be stored?
Store at **2–8°C** in a cool, dry place, away from incompatible substances like oxidizing agents or strong bases.
What grades or purities of 2-Iodothiophene does Molekula supply?
Molekula supplies **high-purity (98%+)** 2-Iodothiophene suitable for research and development applications.
Can Molekula supply 2-Iodothiophene in bulk quantities?
Yes, Molekula can provide bulk quantities of 2-Iodothiophene upon request, subject to availability and regulatory compliance.
What documentation comes with an order of 2-Iodothiophene?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
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.