5-(4-Hydroxyphenyl)thiophene-2-carboxylic Acid CAS 116016-57-0
| CAS No. | 116016-57-0 |
| Molecular Formula | C11H8O3S |
| Molecular Weight | 220.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 220.24 g/mol gives 5-(4-Hydroxyphenyl)thiophene-2-carboxylic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-(4-Hydroxyphenyl)thiophene-2-carboxylic Acid (CAS 116016-57-0), molecular formula C11H8O3S and molecular weight 220.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H8O3S, 5-(4-Hydroxyphenyl)thiophene-2-carboxylic Acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 220.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-(4-Hydroxyphenyl)thiophene-2-carboxylic Acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H8O3S |
| Molecular Weight | 220.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Sulfur Atoms | 1 |
Related Hydroxyphenyl Standards
- 4-(2-Hydroxyphenyl)thiophene-2-carboxylic acid (CAS 1261896-15-4)
- 4-(4-Hydroxyphenyl)thiophene-2-carboxylic Acid (CAS 1261951-51-2)
- 5-[(3-Hydroxyphenyl)methylene]-2-thioxo-4-imidazolidinone (CAS 74920-46-0)
- 6-(2-Hydroxyphenyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 55982-10-0)
- 6-(4-Hydroxyphenyl)-2-mercaptopyrimidin-4-ol (CAS 375834-47-2)
- Methyl 1-(3-hydroxyphenyl)cyclopentane-1-carboxylate (CAS 936758-87-1)
- Methyl 1-(4-hydroxyphenyl)cyclopentane-1-carboxylate (CAS 2092239-11-5)
- 5-[(4-Hydroxyphenyl)methyl]-5-methylimidazolidine-2,4-dione (CAS 13500-25-9)
Recommended Standards
- 1-(2-Fluorophenyl)-3-propyl-4,5-dihydro-1H-pyrazol-5-one (CAS 1152564-73-2)
- 4-Fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (CAS 1178903-32-6)
- [4-(3,5-dimethyl-1h-pyrazol-1-yl)-3-fluorophenyl]methanol (CAS 1152531-24-2)
- 6-Fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (CAS 1178903-34-8)
- 2-Bromo-5-(methoxymethyl)aniline (CAS 1547324-34-4)
- 4,6-Dichloro-2-methyloxazolo[4,5-c]pyridine (CAS 78998-28-4)
- Fluorescein Azide (CAS 1386385-76-7)
- Delamanid-D4 (CAS CATO-C4X-2514)
- 4-(But-2-en-1-yloxy)benzaldehyde (CAS 42053-93-0)
- 3-Amino-N-(4-fluorophenyl)-6-(pyridin-4-yl)thieno[2,3-b]pyridine-2-carboxamide (CAS 496801-80-0)
- 3-((4-Chlorobenzylidene)hydrazono)indolin-2-one (CAS 70565-02-5)
- 7-Chloro-3H-[1,2,3]triazolo[4,5-β]pyridine (CAS 34550-49-7)
- Selexipag Impurity 32 (CAS 31600-69-8)
- Tirzepatide Impurity 33 (CAS CATO-C4X-324033)
Why CATO?
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