rel-(2R,4S,5R)-2-((1H-Pyrazol-1-yl)methyl)-1-(4-(tert-butyl)-3-methoxybenzoyl)-4-(methoxymethyl)-5-(thiazol-2-yl)pyrrolidine-2-carboxylic acid CAS 885264-71-1
| CAS No. | 885264-71-1 |
| Molecular Formula | C26H32N4O5S |
| Molecular Weight | 512.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including rel-(2R,4S,5R)-2-((1H-Pyrazol-1-yl)methyl)-1-(4-(tert-butyl)-3-methoxybenzoyl)-4-(methoxymethyl)-5-(thiazol-2-yl)pyrrolidine-2-carboxylic acid.
CATO supplies rel-(2R,4S,5R)-2-((1H-Pyrazol-1-yl)methyl)-1-(4-(tert-butyl)-3-methoxybenzoyl)-4-(methoxymethyl)-5-(thiazol-2-yl)pyrrolidine-2-carboxylic acid (CAS 885264-71-1), a certified reference material (molecular formula C26H32N4O5S, MW 512.62 g/mol) for analytical method development and quality control.
rel-(2R,4S,5R)-2-((1H-Pyrazol-1-yl)methyl)-1-(4-(tert-butyl)-3-methoxybenzoyl)-4-(methoxymethyl)-5-(thiazol-2-yl)pyrrolidine-2-carboxylic acid (C26H32N4O5S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C26H32N4O5S |
| Molecular Weight | 512.62 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Recommended Standards
- Oxazole, 2,2′-[(phenylphosphinidene)di-2,1-phenylene]bis[4-(1,1-dimethylethyl)-4,5-dihydro-, (4S,4′S)- (CAS 642491-11-0)
- Selexipag Impurity 19 (CAS CATO-C4X-196119)
- (4S,4′S)-2,2′-[(Phenylphosphinidene)di-2,1-phenylene]bis[4,5-dihydro-4-[(1S)-1-methylpropyl]oxazole] (CAS 2757083-13-7)
- Selexipag Impurity 40 (CAS CATO-C4X-196140)
- N,N,4-Trimethyl-5-(1-tosylpyrrolidin-2-yl)pyridin-2-amine (CAS 1352537-67-7)
- 1,3-Dimethyl-1,3,8-triazaspiro[4.5]Decane-2,4-dione hydrochloride (CAS 1206970-39-9)
- 3-((3,4-Dichlorobenzyl)oxy)benzo[b]thiophene-2-carbonitrile (CAS 320422-48-8)
- Ethyl 7-(5-chloro-2-methoxyphenyl)-7-oxoheptanoate (CAS 951886-77-4)
- Mesna Impurity 3 (CAS 1823982-49-5)
- 4-Bromo-5-methylpicolinohydrazide (CAS 1823346-34-4)
- Ethyl 2-(4-chloro-3,5-dimethyl-1h-pyrazol-1-yl)butanoate (CAS 1005592-59-5)
- 6-Oxo-2,3,4,6-tetrahydropyrimido[2,1-b][1,3]thiazine-7-carbonitrile (CAS 2110053-04-6)
- ETHYL 2-BROMO-2-(6-CHLOROPYRIDIN-3-YL)ACETATE (CAS 1007879-26-6)
- Galanin Message Associated Peptide (44-59) amide (CAS 125455-59-6)
Why CATO?
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