N-Nitroso Indigo Carmine CAS CATO-C4X-32601
| CAS No. | CATO-C4X-32601 |
| Molecular Formula | C16H7N3O9S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 472.35 g/mol gives N-Nitroso Indigo Carmine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N-Nitroso Indigo Carmine (CAS CATO-C4X-32601), molecular formula C16H7N3O9S2Na and molecular weight 472.35 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of N-Nitroso Indigo Carmine (C16H7N3O9S2Na) is characterized by a flavonoid core, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), N-Nitroso Indigo Carmine 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 | C16H7N3O9S2 2*Na |
| Molecular Weight | 472.35 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 2-Amino-5-octylbenzaldehyde (CAS 1801190-28-2)
- 6-((2-((4-(2,4-Dichlorophenyl)-5-(5-methyl-1H-imidazol-2-yl)pyrimidin-2-yl)amino)ethyl)amino)nicotinonitrile monohydrochloride (CAS 1797989-42-4)
- 2,2,2-Trifluoroethyl n-(3-chloro-2-fluorophenyl)carbamate (CAS 1087798-10-4)
- Butyl Heptanoate (5 x 0.5 mL) (CAS 5454-28-4)
- 1,3-Bis(3,4-dimethoxybenzyl)urea (CAS 852033-32-0)
- Ethyl 4-hydroxy-7-methyl-2-oxo-1-propyl-1,2-dihydro-1,8-naphthyridine-3-carboxylate (CAS 76336-00-0)
- N-(tert-Butyl)-4-nitroaniline (CAS 4138-38-9)
- 6-Fluoro-4-(piperazin-1-yl)quinoline-3-carbonitrile (CAS 1255779-50-0)
- 3-Ethyl-6-methoxyquinolin-2-amine (CAS 948292-17-9)
- D-Ile27-Tirzepatide (CAS CATO-CPTD788907)
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