1-(Oxan-4-yl)-1h-pyrazole-4-sulfonyl chloride CAS 1340488-60-9
| CAS No. | 1340488-60-9 |
| Molecular Formula | C8H11ClN2O3S |
| Molecular Weight | 250.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 250.70 g/mol gives 1-(Oxan-4-yl)-1h-pyrazole-4-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1-(Oxan-4-yl)-1h-pyrazole-4-sulfonyl chloride (CAS 1340488-60-9), a certified reference material (molecular formula C8H11ClN2O3S, MW 250.70 g/mol) for analytical method development and quality control.
Structurally, 1-(Oxan-4-yl)-1h-pyrazole-4-sulfonyl chloride (C8H11ClN2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 250.70 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C8H11ClN2O3S |
| Molecular Weight | 250.70 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Oxan Standards
- 4-{[3-(oxan-4-yl)-1,2,4-oxadiazol-5-yl]methyl}piperidine (CAS 1535290-58-4)
- 3-(Oxan-4-yl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxylic acid (CAS 1272771-49-9)
- 2-(oxan-4-yl)-3H-imidazo[4,5-b]pyridine-7-carboxylic acid (CAS 1708509-73-2)
- 6-[(oxan-4-yl)amino]-1,2,3,4-tetrahydroquinolin-2-one (CAS 1157411-22-7)
- [1-(Oxan-2-yl)-1H-indazol-5-yl]boronic acid (CAS 1562245-02-6)
- Oxan-4-yl 4-methylbenzenesulfonate (CAS 97986-34-0)
- N-(oxan-4-ylmethyl)-3-(1H-pyrazol-1-yl)aniline (CAS 1282846-64-3)
- 1-(Oxan-4-ylmethyl)-3-phenyl-1H-pyrazol-5-amine (CAS 1448854-63-4)
Recommended Standards
- 2-Methoxy-5-(methoxymethyl)benzene-1-sulfonyl chloride (CAS 1291493-83-8)
- 5-Chloro-4-propoxypyridine-3-sulfonamide (CAS 1352506-61-6)
- 5-Fluoro-1-benzothiophene-2-sulfonyl chloride (CAS 128851-97-8)
- 5-Chloro-N-ethyl-4-hydroxy-N-methylpyridine-3-sulfonamide (CAS 1352515-19-5)
- Hexaamminenickel(II) bromide (CAS 13601-55-3)
- 3-(1,3-Diphenyl-1H-pyrazol-5-yl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepine (CAS 956753-89-2)
- Rel-(2R,3R)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-3-(p-tolyl)propanoic acid (CAS 1217647-86-3)
- 3-Methyl-2-(prop-2-yn-1-ylthio)thieno[3,2-d]pyrimidin-4(3H)-one (CAS 338779-13-8)
- 1,2-Diphenyl-1-[4-[2-(dimethylamino)ethoxy]phenyl]butane-1,4-diol (CAS 141854-25-3)
- cis-Hexahydropyrrolo[3,4-c]pyrrol-1(2H)-one hydrochloride (CAS 2206134-91-8)
- 4-(N-Butyl-N-methylsulfamoyl)-N-(thiazol-2-yl)benzamide (CAS 683761-25-3)
- [(2S,3s)-2-methyl-3-phenyl-oxiran-2-yl]methanol (CAS 107033-44-3)
- 1-Phenyl-2-(1,3,3-trimethylindolin-2-ylidene)ethanone (CAS 36430-85-0)
- Nonapeptide-1 (CAS 158563-45-2)
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