Methyl 1-[[2-N-(5-Nitrothiazolyl)carboxamido]phenyl]-2,3,4- tri-O-acetyl-β-D-glucopyranuronate CAS 221287-92-9
| CAS No. | 221287-92-9 |
| Molecular Formula | C23H23N3O13S |
| Molecular Weight | 581.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Methyl 1-[[2-N-(5-Nitrothiazolyl)carboxamido]phenyl]-2,3,4- tri-O-acetyl-β-D-glucopyranuronate (CAS 221287-92-9), molecular formula C23H23N3O13S and molecular weight 581.51 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Methyl 1-[[2-N-(5-Nitrothiazolyl)carboxamido]phenyl]-2,3,4- tri-O-acetyl-β-D-glucopyranuronate (C23H23N3O13S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C23H23N3O13S |
| Molecular Weight | 581.51 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- methyl 2-[(1R)-1-[[2-[bis(tert-butoxycarbonyl)amino]-5-bromo-3-pyridyl]oxy]ethyl]-4-fluoro-benzoate (CAS 1454851-41-2)
- (2R,3R,4S,5R)-5-(6-benzamido-9h-purin-9-yl)-2-((benzoyloxy)methyl)-4-fluorotetrahydrofuran-3-yl benzoate (CAS 135473-17-5)
- Chloro[(1,3-dimesitylimidazol-2-ylidene)(N,N-dimethylbenzylamine)palladium(II)] (CAS 1058661-78-1)
- 1H,1H,2H,2H-Perfluorodecyltrichlorosilane (CAS 78560-44-8)
- 2-Bromo-1-(3,5-dimethylbenzo[b]thiophen-2-yl)ethan-1-one (CAS 388088-83-3)
- α-D-Glucopyranuronic Acid Methyl Ester 2,3,4-Tribenzoate 1-Methanesulfonate (CAS 503599-28-8)
- sodium 2-(pyrimidin-2-yl)propanoate (CAS 1820641-48-2)
- 5,6,7,8-Tetrahydroimidazo[1,5-a]pyridin-6-amine dihydrochloride (CAS 1909312-62-4)
- (3Z)-N-(4-Chlorophenyl)-3-{[(2,6-dichlorophenyl)methoxy]imino}propanamide (CAS 477851-67-5)
- 3-(Difluoromethoxy)-1-fluoronaphthalene (CAS 1261729-28-5)
- (1H-imidazol-5-yl)(4-methoxyphenyl)methanone (CAS 84396-14-5)
- Ambroxol Impurity 40 (CAS CATO-C4X-108540)
- Calcium sulfite (CAS 10257-55-3)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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