Guanfacine Impurity 7 CAS CATO-C4X-19757
| CAS No. | CATO-C4X-19757 |
| Molecular Formula | C17H13Cl4N3O2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H13Cl4N3O2HCl, Guanfacine Impurity 7 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 469.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Guanfacine Impurity 7 (CAS CATO-C4X-19757), a pharmacopoeial impurity reference standard (molecular formula C17H13Cl4N3O2HCl, MW 469.57 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Guanfacine Impurity 7 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 | C17H13Cl4N3O2 HCl |
| Molecular Weight | 469.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Guanfacine Standards
- Guanfacine-13C,15N3 (CAS 1189924-28-4)
- Guanfacine-13C,15N3 Hydrochloride (CAS 1261393-21-8)
- Guanfacine Impurity 13 (CAS 130974-86-6)
- Guanfacine Impurity 10 (CAS 24067-37-6)
- Guanfacine Hydrochloride (CAS 29110-48-3)
- Guanfacine Hydrochloride Impurity 1 (CAS 54551-83-6)
- Guanfacine Hydrochloride Impurity 4 (CAS 57486-36-9)
- Guanfacine Hydrochloride Impurity 3 (CAS 6575-24-2)
Recommended Standards
- Halometasone Impurity 9 (CAS CATO-C4X-14469)
- Troxipide Impurity 13 (CAS CATO-C4X-214813)
- Lidocaine EP Impurity C (CAS 2198-53-0)
- 3-((tert-Butoxycarbonyl)amino)-2-oxopyrrolidine-3-carboxylic acid (CAS 1360547-46-1)
- N,N-Dimethylethanesulfonamide (CAS 6338-68-7)
- Dimethyl 3-aminopyridine-2,4-dicarboxylate (CAS 257615-55-7)
- N-(4-Acetyl-5-methyl-4,5-dihydro-1,3,4-thiadiazol-2-yl)acetamide (CAS 72938-21-7)
- 2-Methyl-N-(2-(2-((5-methylfuran-2-yl)methylene)hydrazinyl)-2-oxoethyl)-3-nitrobenzamide (CAS 391892-98-1)
- 2-(5-Methyl-3-phenyl-1,2-oxazol-4-yl)-4H-3,1-benzoxazin-4-one (CAS 866150-69-8)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com