Sodium 4-hydroxy-5-((2-hydroxybenzylidene)amino)-7-sulfonaphthalene-2-sulfonate hydrate CAS 304655-82-1
| CAS No. | 304655-82-1 |
| Molecular Formula | C17H12NO8S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Sodium 4-hydroxy-5-((2-hydroxybenzylidene)amino)-7-sulfonaphthalene-2-sulfonate hydrate (C17H12NO8S2NaH2O) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 463.41 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Sodium 4-hydroxy-5-((2-hydroxybenzylidene)amino)-7-sulfonaphthalene-2-sulfonate hydrate (CAS 304655-82-1), a certified reference material (molecular formula C17H12NO8S2NaH2O, MW 463.41 g/mol) for analytical method development and quality control.
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 | C17H12NO8S2 Na H2O |
| Molecular Weight | 463.41 g/mol |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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Recommended Standards
- N-(3-chloro-2-methylphenyl)benzamide (CAS 40447-04-9)
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- 2-(3-Ethynylphenyl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 294667-03-1)
- 3-(3-p-Tolyl-isoxazol-5-ylmethyl)-piperidine-3-carboxylic aciddimethylamide hydrochloride (CAS 1229625-22-2)
- Boc-4-Abu-ol (CAS 75178-87-9)
- 5-(4-Fluorophenyl)-3-(trifluoromethyl)pyridin-2-amine (CAS 1214338-04-1)
- 1-(Tert-butoxycarbonyl)-1-azaspiro[4.4]Nonane-6-carboxylic acid (CAS 2306277-46-1)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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