Methyl 3-hydroxy-5-phenylthiophene-2-carboxylate CAS 5556-23-0
| CAS No. | 5556-23-0 |
| Molecular Formula | C12H10O3S |
| Molecular Weight | 234.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Methyl 3-hydroxy-5-phenylthiophene-2-carboxylate (CAS 5556-23-0), a certified reference material (molecular formula C12H10O3S, MW 234.27 g/mol) for analytical method development and quality control.
Structurally, Methyl 3-hydroxy-5-phenylthiophene-2-carboxylate (C12H10O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 234.27 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Methyl 3-hydroxy-5-phenylthiophene-2-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H10O3S |
| Molecular Weight | 234.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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.) | 1958 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 3-Hydroxy-n-(5-methyl-1,3-thiazol-2-yl)benzamide (CAS 1019453-02-1)
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- 2-Hydroxy-2-phenyl-2-(thiophen-2-yl)acetic acid (CAS 28560-51-2)
- 2-Hydroxy-N-(5-methylthiazol-2-yl)benzamide (CAS 938406-18-9)
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Recommended Standards
- Methyl 3-amino-5-(pyridin-4-yl)thiophene-2-carboxylate (CAS 887247-25-8)
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- Methyl 3-amino-5-(pyridin-3-yl)thiophene-2-carboxylate (CAS 887247-28-1)
- Methyl 4-amino-2-phenylthiazole-5-carboxylate (CAS 99967-80-3)
- 2-(4-Chlorophenyl)-3-(ethylsulfonyl)-1H-pyrrole (CAS 1710472-29-9)
- (5-Chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)methanamine (CAS 1505311-42-1)
- N-(4-chlorophenyl)-3-methylbenzamide (CAS 81636-14-8)
- (4-((2-Chlorobenzyl)oxy)-3,5-dimethylphenyl)boronic acid (CAS 849052-15-9)
- Phenyl 2,3,4,6-Tetra-O-acetyl-1-thio-α-D-mannopyranoside (CAS 108032-93-5)
- 5-(Pyridin-4-yl)isoxazole-4-carboxylic acid (CAS 954230-87-6)
- 1-Bromo-2-chloro-3-(trifluoromethoxy)benzene (CAS 1417568-88-7)
- 4-(Difluoromethoxy)-1-fluoro-2-nitrobenzene (CAS 57213-30-6)
- 3,5-Difluoro-4-((3-methylbutan-2-yl)amino)benzonitrile (CAS 1384720-84-6)
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Why CATO?
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