Sodium 4-amino-3,6-bis((4-((2,4-diamino-5-methylphenyl)diazenyl)phenyl)diazenyl)-5-hydroxynaphthalene-2,7-disulfonate CAS 6745-67-1
| CAS No. | 6745-67-1 |
| Molecular Formula | C36H33N13O7S2 |
| 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.
Sodium 4-amino-3,6-bis((4-((2,4-diamino-5-methylphenyl)diazenyl)phenyl)diazenyl)-5-hydroxynaphthalene-2,7-disulfonate (CAS 6745-67-1) is a high-purity analytical reference standard with the molecular formula C36H33N13O7S2Na and a molecular weight of 846.85 g/mol.
Structurally, Sodium 4-amino-3,6-bis((4-((2,4-diamino-5-methylphenyl)diazenyl)phenyl)diazenyl)-5-hydroxynaphthalene-2,7-disulfonate (C36H33N13O7S2Na) 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 27.0, corresponding to approximately 27 ring(s) or double-bond equivalent(s). With a molecular weight of 846.85 g/mol, it falls into the 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.
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 | C36H33N13O7S2 Na |
| Molecular Weight | 846.85 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 27.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 13 |
| Sulfur Atoms | 2 |
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