2-Chloro-4-nitrophenyl 4-O-b-D-galactopyranosylmaltoside CAS 157381-11-8
| CAS No. | 157381-11-8 |
| Molecular Formula | C24H34ClNO18 |
| Molecular Weight | 659.98 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.
CATO supplies 2-Chloro-4-nitrophenyl 4-O-b-D-galactopyranosylmaltoside (CAS 157381-11-8), a certified reference material (molecular formula C24H34ClNO18, MW 659.98 g/mol) for analytical method development and quality control.
2-Chloro-4-nitrophenyl 4-O-b-D-galactopyranosylmaltoside (C24H34ClNO18) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, 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).
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 | C24H34ClNO18 |
| Molecular Weight | 659.98 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
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Recommended Standards
- (S)-N-(1-((tert-Butyldiphenylsilyl)oxy)-3-(1-methyl-1H-imidazol-5-yl)propan-2-yl)-2,4,6-triisopropylbenzenesulfonamide (CAS 787554-04-5)
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- 5-ethyl-3-phenyl-2-thioxoimidazolidin-4-one 66256-32-4 PTH-DL-2-Aminobutyric acid (CAS 66256-32-4)
- 3,5-Difluoro-2-(hexyloxy)benzaldehyde (CAS 1443343-83-6)
- 2-(3-chlorophenyl)-N-ethylethanamine (CAS 951912-42-8)
- Ethyl 3-Cyclopropyl-2,2-difluoropropanoate (CAS 1267593-90-7)
- tert-Butyl (6-chloroquinolin-8-yl)carbamate (CAS 1487062-13-4)
- Semaglutide impurity 100 (CAS CATO-C4X-2226100)
Why CATO?
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