Molekula
Thiophene-2-acetic 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
Thiophene-2-acetic acid is an organic compound containing a thiophene ring with acetic acid functionality, primarily used as a pharmaceutical intermediate, best known as the side-chain precursor for cephalosporin antibiotics such as cephalothin and cefoxitin. It is also employed in organic synthesis and pharmaceutical research. CAS 1918-77-0, molecular formula C6H6O2S, molecular weight 142.18 g/mol. Store at ambient conditions. Signal word: Danger. Molekula supplies Thiophene-2-acetic 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
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.
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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25 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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100 g — £71.60 per pack ex VAT · £85.92 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 | White or light yellow to light brown crystalline powder |
| Assay/Purity | ≥ 97.5 |
| Melting Point | 61 - 65°C |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 20885118 |
| CAS Number | 1918-77-0 |
| IUPAC Name | 2-thiophen-2-ylacetic acid |
| EC Number | 217-639-8 |
| Molecular Formula | C6H6O2S |
| Molecular Weight | 142.18 |
| Exact Mass | 142.0089 |
| SMILES | C1=CSC(=C1)CC(=O)O |
| InChIKey | SMJRBWINMFUUDS-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H6O2S/c7-6(8)4-5-2-1-3-9-5/h1-3H,4H2,(H,7,8) |
| PubChem CID | 15970 |
| UN Number | UN3261 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2934.99.90.01 |
| Tariff Code | 2934999090 |
Safety & GHS
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Corrosive
GHS05
Hazard statements
- EUH071 Corrosive to the respiratory tract
- H290 May be corrosive to metals
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- 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+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
- P310 Immediately call a POISON CENTER or doctor/physician
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
- (Thien-2-yl)acetic acid
- 2-(2-thienyl)acetic acid
- 2-(thiophen-2-yl)acetic acid
- 2-THENYLACETIC ACID
- 2-Thienylacetic acid
- 2-Thiopheneacetic acid
- thienylacetic acid
- thienylactic acid
- thiophen-2-ylacetic acid
- Thiopheneacetic acid
Frequently asked questions
What is thiophene-2-acetic acid commonly used for?
Thiophene-2-acetic acid is primarily used as a precursor in organic synthesis, including the production of pharmaceuticals, agrochemicals, and specialty chemicals.
What is the chemical formula and molecular weight of thiophene-2-acetic acid?
The chemical formula is C6H6O2S, and the molecular weight is 142.18 g/mol.
How should thiophene-2-acetic acid be stored?
Store at ambient temperature in a cool, dry place, away from incompatible substances and moisture.
What purity grades are available for thiophene-2-acetic acid?
We supply thiophene-2-acetic acid in technical grade and high-purity (98%+) forms, depending on your application requirements.
Can Molekula supply thiophene-2-acetic acid in bulk quantities?
Yes, we offer bulk packaging options (e.g., drums, IBCs) for thiophene-2-acetic acid—contact us for specific volume inquiries.
What documentation is provided with a thiophene-2-acetic acid order?
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.