HISTIDINE Impurity 11 CAS CATO-C4X-323911
| CAS No. | CATO-C4X-323911 |
| Molecular Formula | C6H9N3O3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 207.61 g/mol gives HISTIDINE Impurity 11 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies HISTIDINE Impurity 11 (CAS CATO-C4X-323911), a pharmacopoeial impurity reference standard (molecular formula C6H9N3O3HCl, MW 207.61 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C6H9N3O3HCl, HISTIDINE Impurity 11 contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures HISTIDINE Impurity 11 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H9N3O3 HCl |
| Molecular Weight | 207.61 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related HISTIDINE Standards
- HISTIDINE Impurity 2 (CAS 1141479-01-7)
- DL-Histidine-α- (CAS 15474-90-5)
- D-Histidine Methyl Ester (CAS 17720-12-6)
- L-Histidine Methyl Ester Hydrochloride (CAS 18684-16-7)
- HISTIDINE Impurity 6 (CAS 1932060-69-9)
- L-Histidine-13C6,15N3 hydrochloride hydrate (CAS 202468-43-7)
- D-Histidine, 1-[(1,1-dimethylethoxy)carbonyl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, compd. with cyclohexanamine (1:1) (CAS 210755-31-0)
- L-Histidine, 1-methyl-, methyl ester, hydrochloride (1:1) (CAS 256657-21-3)
Recommended Standards
- Allopurinol impurity 16 (CAS CATO-C4X-145816)
- Atogepant Impurity 65 (CAS CATO-C4X-328565)
- Obeticholic Acid Impurity 3 (CAS 1708092-13-0)
- Methyl 4-(1-isopropyl-3,5-dimethyl-1H-pyrazol-4-yl)-2,4-dioxobutanoate (CAS 1351393-81-1)
- 3-Cyano-4,5-difluorobenzenesulfonyl chloride (CAS 1807047-95-5)
- Ethyl 2-amino-4-(2-ethyl-1h-imidazol-1-yl)butanoate (CAS 1343579-78-1)
- 3-Bromo-4-(cyclopropylmethoxy)pyridine (CAS 1357095-18-1)
- N-(4-Cyclopropoxy-5-nitropyridin-3-yl)methanesulfonamide (CAS 1243388-49-9)
- Nafamostat Impurity 35 (CAS 130200-58-7)
- Tetrapeptide-30/Tegopep (CAS 1036207-61-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com