Guanfacine Impurity 6 CAS 90793-64-9
| CAS No. | 90793-64-9 |
| Molecular Formula | C10H10Cl2O2 |
| Molecular Weight | 233.09 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Guanfacine Impurity 6 (CAS 90793-64-9), a pharmacopoeial impurity reference standard (molecular formula C10H10Cl2O2, MW 233.09 g/mol) used for the identification and quantification of trace impurities in APIs.
Guanfacine Impurity 6 (C10H10Cl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures Guanfacine Impurity 6 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 | C10H10Cl2O2 |
| Molecular Weight | 233.09 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
Related Guanfacine Standards
- Guanfacine Impurity 4 (CAS 78622-22-7)
- Guanfacine Hydrochloride Impurity 1 (CAS 54551-83-6)
- Guanfacine-13C,15N3 (CAS 1189924-28-4)
- Guanfacine Hydrochloride Impurity 4 (CAS 57486-36-9)
- Guanfacine Hydrochloride Impurity 3 (CAS 6575-24-2)
- Guanfacine Hydrochloride Impurity 2 (CAS 78433-88-2)
- Guanfacine Impurity 13 (CAS 130974-86-6)
- Guanfacine Impurity 10 (CAS 24067-37-6)
Recommended Standards
- Nintedanib Impurity 46 (CAS 99846-70-5)
- 2,4-Dichloro-3,5-Dimethylphenol Acetate (CAS 99421-62-2)
- Trazodone Impurity 99 (CAS CATO-C4X-177299)
- Chlorfenprop-Methyl (CAS 14437-17-3)
- Mirogabalin Imputity 100 (CAS CATO-C4X-2924100)
- Ticagrelor impurity 102 (CAS CATO-C4X-1093102)
- Abacavir Impurity 18 (CAS 906626-51-5)
- 1-(Pyridin-3-yl)piperidin-4-one (CAS 315496-80-1)
- 3-Chloro-1-(tetrahydrofuran-2-yl)-5,6,7,8-tetrahydroisoquinoline-4-carbonitrile (CAS 1707359-96-3)
- 2-(((Dimethyl(oxo)-lambda6-sulfanylidene)amino)methyl)benzonitrile (CAS 1621962-62-6)
- Probucol Impurity 3 (CAS CATO-C4X-29203)
- N-(furan-2-ylmethyl)-4-(4-methoxybenzoyl)-1H-pyrrole-2-carboxamide (CAS 478259-29-9)
- 4-Cyclohexylpiperidin-4-ol (CAS 273378-21-5)
- Peptide 432 (CAS CATO-CPTD788432)
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