Determine the necessary mass, volume, or concentration for preparing a solution.
5-Ethynylthiophene-2-carboxylic acid - ≥97% , CAS No.174672-58-3
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Storage
Room temperature
Shipped In
Normal
224,000+ research products · Triple ISO certified · COA & SDS available for every product · Same-day shipping on in-stock items
Why this grade
≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Storage & shipping
Room temperature Ships Normal Check lot-specific COA for exact specifications.
Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Specifications
Specifications & Purity
≥97%
Storage
Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
| Canonical Smiles | C#CC1=CC=C(S1)C(=O)O |
|---|---|
| IUPAC Name | 5-ethynylthiophene-2-carboxylic acid |
| InChIKey | CBDSPXPVZWMEOH-UHFFFAOYSA-N |
| INCHI | 1S/C7H4O2S/c1-2-5-3-4-6(10-5)7(8)9/h1,3-4H,(H,8,9) |
| Molecular Weight | 152.17 |
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →✅ Certificate of Analysis (COA)
Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →🔬 Specification Sheet
Full quality attributes and acceptance criteria for this grade.
View spec sheet →Advanced Data
Taxonomic Classification
Taxonomy Tree
- Kingdom Organic compounds
- Superclass Organoheterocyclic compounds
- Class Thiophenes
- Superclass Organoheterocyclic compounds
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Class | Thiophenes |
| Subclass | Thiophene carboxylic acids and derivatives |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Thiophene carboxylic acids |
| Alternative Parents | 2,5-disubstituted thiophenes Heteroaromatic compounds Carboxylic acids Acetylides Organooxygen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteromonocyclic compounds |
| Substituents | Thiophene carboxylic acid - 2,5-disubstituted thiophene - Heteroaromatic compound - Acetylide - Carboxylic acid - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as thiophene carboxylic acids. These are compounds containing a thiophene ring which bears a carboxylic acid group. |
| External Descriptors | Not available |
3D Structure
Interactive Chemical Structure Model
Certificates（CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
| Molecular Weight | 152.170 g/mol |
|---|---|
| XLogP3 | 1.700 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 2 |
| Exact Mass | 151.993 Da |
| Monoisotopic Mass | 151.993 Da |
| Topological Polar Surface Area | 65.500 Ų |
| Heavy Atom Count | 10 |
| Formal Charge | 0 |
| Complexity | 191.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
Solution Calculators
Reviews
Customer Reviews
Remind me later
Products are supplied to verified businesses, institutions, and qualified professionals for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
Copyright © 2023–present Aladdin Scientific Corp. All rights reserved.