2-(Thiophen-2-yl)pyrimidine-5-carboxylic acid CAS 916766-97-7
| CAS No. | 916766-97-7 |
| Molecular Formula | C9H6N2O2S |
| Molecular Weight | 206.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
2-(Thiophen-2-yl)pyrimidine-5-carboxylic acid (CAS 916766-97-7) is a high-purity analytical reference standard with the molecular formula C9H6N2O2S and a molecular weight of 206.22 g/mol.
Based on its molecular formula C9H6N2O2S, 2-(Thiophen-2-yl)pyrimidine-5-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 206.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 2-(Thiophen-2-yl)pyrimidine-5-carboxylic acid 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 | C9H6N2O2S |
| Molecular Weight | 206.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Thiophen Standards
- 2-(Thiophen-3-yl)pyrimidine-4-carboxylic acid (CAS 1343335-87-4)
- 3-(Thiophen-2-yl)pyrazine-2-carboxylic acid (CAS 1368962-51-9)
- 3-(Thiophen-3-yl)pyrazine-2-carboxylic acid (CAS 1823549-46-7)
- 2-(Thiophen-2-ylsulfonyl)acetic acid (CAS 68021-40-9)
- 2-(Thiophen-3-ylsulfonyl)acetic acid (CAS 98198-41-5)
- 3-Methyl-5-(2-(thiophen-3-yl)vinyl)isoxazol-4-amine (CAS 1374409-03-6)
- 3-(Thiophen-2-ylmethyl)-5,6-dihydro-4H-pyrrolo[3,2-d]isoxazole (CAS 603067-46-5)
- 3-(Thiophen-2-yl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine (CAS 1159522-45-8)
Recommended Standards
- 2-(pyridin-4-yl)-1,3-thiazole-5-carboxylic acid (CAS 216867-46-8)
- 2-[2-(2-Sulfanylacetamido)acetamido]acetic acid (CAS 66516-08-3)
- 2-(Pyridin-3-yl)thiazole-5-carboxylic acid (CAS 248275-42-5)
- 2-[5-(4-Fluoro-phenyl)-isoxazol-3-yl]-ethylamine (CAS 910411-00-6)
- Leptin (22-56) (human) (CAS 183598-56-3)
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- 1-(3-((6-Chloropyridin-3-yl)methyl)pyrrolidin-1-yl)ethan-1-one (CAS 1316225-91-8)
- 3-(6-Chloro-1,1,2,2,3,3,4,4,5,5,6,6-dodecafluorohexyl)-3,4,4-trifluoro-1,2-oxathietane 2,2-dioxide (CAS 1244856-02-7)
- 1-(Tetrahydro-2H-pyran-2-yl)-1H-imidazole (CAS 161014-15-9)
- Cefotaxime Impurity 27 (CAS CATO-C4X-120127)
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- 2-(Difluoromethyl)-3,6-diiodopyridine-4-carboxaldehyde (CAS 1806032-85-8)
- 1-Methyl-4H-benzo[f][1,2,4]triazolo[4,3-a]azepin-6-yl 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate (CAS 1588522-06-8)
- Semaglutide impurity 33 (CAS CATO-C4X-222633)
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