Methoxamine Impurity 9 CAS 49710-99-8
| CAS No. | 49710-99-8 |
| Molecular Formula | C10H12O3 |
| Molecular Weight | 180.20 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 Methoxamine Impurity 9 (CAS 49710-99-8), a pharmacopoeial impurity reference standard (molecular formula C10H12O3, MW 180.20 g/mol) used for the identification and quantification of trace impurities in APIs.
Methoxamine Impurity 9 (C10H12O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, 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. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H12O3 |
| Molecular Weight | 180.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Methoxamine Standards
- Methoxamine Impurity 10 (CAS 1201-38-3)
- Methoxamine Impurity 23 (CAS 100840-93-5)
- Methoxamine Impurity 1 (CAS 5803-30-5)
- Methoxamine Impurity 13 (CAS 938-46-5)
- Methoxamine Impurity 17 (CAS 776-99-8)
- Methoxamine Impurity 6 (CAS 1835-04-7)
- Methoxamine Impurity 18 (CAS CATO-C4X-202218)
- Methoxamine Impurity 8 (CAS CATO-C4X-20228)
Recommended Standards
- 4-Propoxybenzoic Acid (CAS 5438-19-7)
- Salicylic Acid Impurity 26 (CAS 2100-31-4)
- Revefenacin impurity 30 (CAS 1719-82-0)
- Salicylic Acid Impurity 14 (CAS 607-85-2)
- Sotagliflozin Impurity 4 (CAS 1018899-73-4)
- Atrasentan Impurity 15 (CAS 1063836-09-8)
- Doxorubicin Impurity 32 (CAS CATO-C4X-203332)
- 2,6-Difluoro-3-methoxybenzenesulfonyl chloride (CAS 1706458-18-5)
- 5-Cyclopropyl-4-(1-phenylethyl)-4H-1,2,4-triazole-3-thiol (CAS 893764-69-7)
- 2,4-Bis(trifluoromethyl)cyclohexanamine (CAS 65934-73-8)
- 2,6-Dichloro-3,5-dimethoxyaniline (CAS 872509-56-3)
- 1-(3-Pyrrolidinylmethyl)-4-piperidinoldihydrochloride (CAS 1220027-06-4)
- 2,4,5-Trichlorotoluene (CAS 6639-30-1)
- Galanin-Like Peptide (rat) trifluoroacetate salt (CAS 245114-97-0)
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