5-Carboxy-1-(4-sulfobutyl)-2,3,3-trimethyl-3H-indolium CAS 852818-04-3
| CAS No. | 852818-04-3 |
| Molecular Formula | C16H21NO5S |
| Molecular Weight | 339.41 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 5-Carboxy-1-(4-sulfobutyl)-2,3,3-trimethyl-3H-indolium (CAS 852818-04-3), a certified reference material (molecular formula C16H21NO5S, MW 339.41 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H21NO5S, 5-Carboxy-1-(4-sulfobutyl)-2,3,3-trimethyl-3H-indolium contains a flavonoid core, 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 339.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H21NO5S |
| Molecular Weight | 339.41 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2,5-Dibromo-3-chloroaniline (CAS 1449688-58-7)
- (R)-3-((tert-Butoxycarbonyl)amino)-2-(4-(trifluoromethyl)benzyl)propanoic acid (CAS 1260608-21-6)
- N1-(Pyridin-3-yl)propane-1,3-diamine (CAS 938459-11-1)
- Ilaprazole Impurity 139 (CAS CATO-C4X-1130139)
- 2-Fluoro-5-((5-oxo-1,2,3,4,5,6-hexahydropyrido[2,3-d]pyridazin-8-yl)methyl)benzoic acid (CAS 1036403-32-3)
- 2-((4-Phenylquinazolin-2-yl)amino)ethan-1-ol (CAS 53364-90-2)
- 4-(4-Fluorophenoxy)-2-phenylquinazoline (CAS 866155-24-0)
- 3-(bromomethyl)-2-methoxypyridine (CAS 942060-13-1)
- 1,3-Dimethyl 2-[4-(3-chlorobenzamido)phenyl]propanedioate (CAS 866137-14-6)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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