NB-598 xMaleic acid salt CAS 136719-26-1
| CAS No. | 136719-26-1 |
| Molecular Formula | C27H31NOS2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
NB-598 xMaleic acid salt (CAS 136719-26-1), molecular formula C27H31NOS2C4H4O4 and molecular weight 565.74 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of NB-598 xMaleic acid salt (C27H31NOS2C4H4O4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C27H31NOS2 C4H4O4 |
| Molecular Weight | 565.74 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Recommended Standards
- 1-{1H-pyrrolo[2,3-b]pyridine-6-carbonyl}-4-(1,1,1-trifluoropropan-2-yl)piperazine (CAS 1947752-82-0)
- Di(1H-inden-1-yl)dimethylsilane (CAS 18666-26-7)
- alpha-Chlorothioanisole (CAS 7205-91-6)
- 3-(Chloromethyl)-5-methylheptane (CAS 1465589-10-9)
- 2-(2H-1,2,3,4-Tetraazol-5-yl-methyl)-1,3-benzothiazole (CAS 852694-88-3)
- 2-(5-Chloro-1h-1,2,4-triazol-3-yl)pyridine (CAS 1315347-10-4)
- N-(4-Bromobenzyl)-2-chlorobenzamide (CAS 1283105-08-7)
- 7-Chloro-2-(4-chlorophenyl)-6-methoxyquinoline-4-carboxylic acid (CAS 19021-13-7)
- 3-(4-Ethylphenyl)furan (CAS 918625-94-2)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
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