N-[(1-Methyl-1H-pyrazol-4-yl)sulfonyl]-L-alanine CAS 1308951-64-5
| CAS No. | 1308951-64-5 |
| Molecular Formula | C7H11N3O4S |
| Molecular Weight | 233.24 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.
CATO supplies N-[(1-Methyl-1H-pyrazol-4-yl)sulfonyl]-L-alanine (CAS 1308951-64-5), a certified reference material (molecular formula C7H11N3O4S, MW 233.24 g/mol) for analytical method development and quality control.
N-[(1-Methyl-1H-pyrazol-4-yl)sulfonyl]-L-alanine (C7H11N3O4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H11N3O4S |
| Molecular Weight | 233.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- 2-((6-(4-Fluorophenyl)pyridazin-3-yl)oxy)ethan-1-amine (CAS 1283109-05-6)
- (4S)-1-(tert-Butoxycarbonyl)-4-fluoropyrrolidine-2-carboxylic acid (CAS 1313017-50-3)
- 5-(2-Fluorophenyl)-3-(pyrrolidin-2-yl)-1,2,4-oxadiazole (CAS 1272898-17-5)
- Ethyl 8-fluoro-2-methylquinoline-3-carboxylate (CAS 1333253-62-5)
- Ethyl 2-ethyl-5-nitropyridine-3-carboxylate (CAS 923145-41-9)
- tert-Butyl 5-cyano-2-hydroxy-1H-indole-1-carboxylate (CAS 1881293-43-1)
- Methyl 4-amino-3-ethylbenzoate (CAS 153304-75-7)
- 6-(5-Amino-5-carboxypentanamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (CAS 5286-29-3)
- 2-(2-Fluoro-4-iodophenyl)acetonitrile (CAS 345963-95-3)
- 5-Bromo-2-hydrazinyl-3-methylpyridine (CAS 1216259-76-5)
- Methyl 3-((tert-butoxycarbonyl)amino)-4-phenylbutanoate (CAS 142854-48-6)
- (5-(N,N-Diethylsulfamoyl)-2-methoxyphenyl)boronic acid (CAS 1704095-35-1)
- 5,7-Dihydro-4H-purin-6-amine (CAS 866231-41-6)
- Semaglutide-d15 (CAS 910463-68-2(non-labelled))
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com