1-[(4-Methylphenyl)sulfonyl]-3-azetidinecarboxylic acid CAS 92993-58-3
| CAS No. | 92993-58-3 |
| Molecular Formula | C11H13NO4S |
| Molecular Weight | 255.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-[(4-Methylphenyl)sulfonyl]-3-azetidinecarboxylic acid (CAS 92993-58-3), molecular formula C11H13NO4S and molecular weight 255.29 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H13NO4S, 1-[(4-Methylphenyl)sulfonyl]-3-azetidinecarboxylic 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 255.29 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.
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 | C11H13NO4S |
| Molecular Weight | 255.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 1,3,3-trimethyl-2,2-dioxo-1,3-dihydro-2$l^{6},1-benzothiazole-5-carboxylic acid (CAS 2044796-43-0)
- 1-Methanesulfonyl-1,2,3,4-tetrahydroquinoline-6-carboxylic acid (CAS 852916-95-1)
- 1-(Thiophen-2-yl)isoquinoline-3-carboxylic acid (CAS 89242-38-6)
- 1-Methanesulfonyl-2-methyl-2,3-dihydro-1h-indole-5-carboxylic acid (CAS 851116-22-8)
- 4-(Tert-butylamino)-3-nitrobenzonitrile (CAS 320406-01-7)
- N-isobutylquinolin-5-amine (CAS 343953-24-2)
- Tert-butyl (1R,5S)-6-oxo-3-azabicyclo[3.2.0]Heptane-3-carboxylate (CAS 1932117-43-5)
- N-(6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-3,4-dimethoxybenzamide (CAS 166115-70-4)
- 2-Methoxy-N-(thiazol-5-ylmethyl)pyridin-3-amine (CAS 1339778-56-1)
- 4-Benzyl-1,3-thiazolidine-2-thione (CAS 13897-15-9)
- Lithium cobalt(III) oxide (CAS 12190-79-3)
- 1-(4-(Trifluoromethyl)phenoxy)propan-2-amine (CAS 89763-86-0)
- <I>N</I>-CBZ-<SC>L</SC>-aspartic acid (CAS 1152-61-0)
- Tau Peptide (337-368) (Repeat 4 Domain) trifluoroacetate salt (CAS 330456-27-4)
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