5-[(4-bromo-1h-pyrazol-1-yl)methyl]-2-chloro-1,3-thiazole CAS 1525598-55-3
| CAS No. | 1525598-55-3 |
| Molecular Formula | C7H5BrClN3S |
| Molecular Weight | 278.56 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.
CATO supplies 5-[(4-bromo-1h-pyrazol-1-yl)methyl]-2-chloro-1,3-thiazole (CAS 1525598-55-3), a certified reference material (molecular formula C7H5BrClN3S, MW 278.56 g/mol) for analytical method development and quality control.
Structurally, 5-[(4-bromo-1h-pyrazol-1-yl)methyl]-2-chloro-1,3-thiazole (C7H5BrClN3S) contains a nitrile group, sulfur-containing functionality, chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 278.56 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C7H5BrClN3S |
| Molecular Weight | 278.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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