2-(1-Methyl-1h-pyrazol-4-yl)-1,3-thiazole-5-carboxylic acid CAS 1035235-01-8
| CAS No. | 1035235-01-8 |
| Molecular Formula | C8H7N3O2S |
| Molecular Weight | 209.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
2-(1-Methyl-1h-pyrazol-4-yl)-1,3-thiazole-5-carboxylic acid (CAS 1035235-01-8), molecular formula C8H7N3O2S and molecular weight 209.23 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(1-Methyl-1h-pyrazol-4-yl)-1,3-thiazole-5-carboxylic acid (C8H7N3O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 209.23 g/mol, it falls into the medium-molecular-weight range. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C8H7N3O2S |
| Molecular Weight | 209.23 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- 2,2,2-Trifluoro-N-(1-(thiophen-2-yl)ethyl)ethan-1-amine (CAS 1016501-33-9)
- 2-(1-Methyl-1h-pyrazol-4-yl)-1,3-thiazole-4-carboxylic acid (CAS 1152605-07-6)
- Lemborexant Impurity 96 (CAS CATO-C4X-304296)
- 2-Hydrazinylbenzo[d]thiazole-6-carboxylic acid (CAS 117342-15-1)
- 1H,1H,10H,10H-Perfluorodecane-1,10-diol (CAS 754-96-1)
- N-[2-Methyl-6-(trifluoromethyl)-pyridin-3-yl]-N-phenylurea (CAS 1227954-85-9)
- tert-Butyl 3-hydroxy-1-oxa-6-azaspiro[3.3]heptane-6-carboxylate (CAS 1349199-63-8)
- N-Desmethyl Nitroso Trimebutine D9 (CAS CATO-C4X-185826)
- 1-Nitro-2-(prop-2-yn-1-yloxy)benzene (CAS 13350-09-9)
- 7-Methoxyimidazo[1,2-a]pyridine-3-carbaldehyde (CAS 896722-39-7)
- 2,7-Dibromo-9,9-didecylfluorene (CAS 175922-78-8)
- 3-Amino-4-(4-chlorophenyl)-1-ethylazetidin-2-one (CAS 1706532-42-4)
- 2-(Aminomethyl)-5-bromo-6-(difluoromethyl)-3-methylpyridine (CAS 1805929-33-2)
- Semaglutide Impurity 75 (CAS CATO-C4X-2226175)
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