Carbazochrome Impurity N5 CAS 856783-37-4
| CAS No. | 856783-37-4 |
| Molecular Formula | C9H8NO5S. |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Carbazochrome Impurity N5 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 265.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Carbazochrome Impurity N5 (CAS 856783-37-4) is a certified pharmaceutical impurity reference standard with the molecular formula C9H8NO5S.Na and a molecular weight of 265.21 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Carbazochrome Impurity N5 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 | C9H8NO5S. Na |
| Molecular Weight | 265.21 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) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Carbazochrome Standards
- Carbazochrome Salicylate (CAS 13051-01-9)
- Carbazochrome Impurity N8 (CAS 130570-60-4)
- Carbazochrome Impurity 5 (CAS 2271443-87-7)
- Carbazochrome Impurity N6 (CAS 25574-55-4)
- Carbazochrome Impurity N3 (CAS 2666934-59-2)
- Carbazochrome Impurity N4 (CAS 42372-66-7)
- Carbazochrome Sodium Sulfonate (CAS 51460-26-5)
- Carbazochrome (CAS 69-81-8)
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- [(2,6-Dichlorophenyl)methyl][(E)-[(dimethylamino)methylidene]amino]dimethylazanium chloride (CAS 317377-45-0)
- 4-Mercaptobenzo[d]oxazole-2-carbonyl chloride (CAS 1806489-51-9)
- 1,9-Bis-Boc-1,5,9-triazanonane (CAS 82409-02-7)
- N-Isopropyl-1-(pyridin-3-yl)-1H-pyrazol-4-amine (CAS 28466-02-6)
- Fas C- Terminal Tripeptide (CAS 189109-90-8)
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