xSodium 4-amino-5-hydroxy-7-sulfonaphthalene-2-sulfonate CAS 17265-34-8
| CAS No. | 17265-34-8 |
| Molecular Formula | C10H8NO7S2 |
| Molecular Weight | N/A |
| 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.
xSodium 4-amino-5-hydroxy-7-sulfonaphthalene-2-sulfonate (CAS 17265-34-8), molecular formula C10H8NO7S2Na and molecular weight 341.28 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, xSodium 4-amino-5-hydroxy-7-sulfonaphthalene-2-sulfonate (C10H8NO7S2Na) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.5, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 341.28 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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 | C10H8NO7S2 Na |
| Molecular Weight | 341.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related xSodium Standards
Recommended Standards
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- Methyl 1-naphthoate (CAS 2459-24-7)
- 2-((4-Amino-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)thio)-N-(naphthalen-1-yl)acetamide (CAS 869068-12-2)
- 2-(Adamantan-1-yl)-4-chloroquinazoline (CAS 1095559-60-6)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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