4-Hydroxy-5-((2-hydroxybenzylidene)amino)naphthalene-2,7-disulfonic acid hydrate CAS 2301867-63-8
| CAS No. | 2301867-63-8 |
| Molecular Formula | C17H13NO8S2 |
| Molecular Weight | N/A |
| 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 4-Hydroxy-5-((2-hydroxybenzylidene)amino)naphthalene-2,7-disulfonic acid hydrate.
CATO supplies 4-Hydroxy-5-((2-hydroxybenzylidene)amino)naphthalene-2,7-disulfonic acid hydrate (CAS 2301867-63-8), a certified reference material (molecular formula C17H13NO8S2H2O, MW 441.43 g/mol) for analytical method development and quality control.
4-Hydroxy-5-((2-hydroxybenzylidene)amino)naphthalene-2,7-disulfonic acid hydrate (C17H13NO8S2H2O) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 4-Hydroxy-5-((2-hydroxybenzylidene)amino)naphthalene-2,7-disulfonic acid hydrate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C17H13NO8S2 H2O |
| Molecular Weight | 441.43 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Hydroxy Standards
- N-(4-Hydroxy-3-oxo-2,3-dihydro-1H-inden-5-yl)acetamide (CAS 1000333-88-9)
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Recommended Standards
- N-((1,4,5-trimethyl-1H-imidazol-2-yl)methyl)ethanamine (CAS 921074-60-4)
- 2-(3-Morpholino-6-oxopyridazin-1(6H)-yl)acetic acid (CAS 1269533-24-5)
- 1-(2,3-Dimethyl-1H-indol-1-yl)-3-(piperazin-1-yl)propan-2-ol (CAS 801228-18-2)
- 6-Aminopyrimidine-4-carboxylic acid hydrate (CAS 7146-87-4)
- 2-nitrobenzenesulfonyl fluoride (CAS 433-98-7)
- (R)-2-((tert-Butoxycarbonyl)amino)-4-(2,3-dichlorophenyl)butanoic acid (CAS 1260589-46-5)
- 6-Chlorovanillin (CAS 18268-76-3)
- 4-Chloro-2-phenylpyrimidin-5-ol (CAS 343349-18-8)
- 109957-97-3 2-Chloro-1-fluoro-3-(trifluoromethyl)benzene DTXSID50597490 (CAS 109957-97-3)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
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