Ambroxol Impurity 91 CAS CATO-C4X-108591
| CAS No. | CATO-C4X-108591 |
| Molecular Formula | C16H22Br2N2O3 |
| Molecular Weight | 450.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ambroxol Impurity 91 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.
CATO supplies Ambroxol Impurity 91 (CAS CATO-C4X-108591), a pharmacopoeial impurity reference standard (molecular formula C16H22Br2N2O3, MW 450.17 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, Ambroxol Impurity 91 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 450.17 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.
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.
Physical & Chemical Properties
| Molecular Formula | C16H22Br2N2O3 |
| Molecular Weight | 450.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >90% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Ambroxol Standards
- Ambroxol impurity 108 (CAS 73220-00-5)
- Ambroxol Impurity 87 (CAS CATO-C4X-108587)
- Ambroxol Impurity 90 (CAS CATO-C4X-108590)
- Ambroxol Impurity 101 (CAS CATO-C4X-1085101)
- Ambroxol impurity 115 (CAS CATO-C4X-1085115)
- Ambroxol Impurity 13 (CAS 305867-38-3)
- Ambroxol impurity 05 (CAS CATO-C4X-1085105)
- Ambroxol Impurity 93 (CAS CATO-C4X-108593)
Recommended Standards
- 3-(2,6-Dichlorophenyl)-5-{1-[4-(trifluoromethyl)phenyl]-1H-1,2,3-triazol-4-yl}-1,2-oxazole-4-carbonitrile (CAS 900019-76-3)
- (1R)-3,3'-Dibromo-5,5',6,6',7,7',8,8'-octahydro[1,1'-binaphthalene]-2,2'-diamine (CAS 950769-11-6)
- Bromhexine impurity 53 (CAS CATO-C4X-106053)
- (1S)-3,3'-dibromo-5,5',6,6',7,7',8,8'-octahydro-[1,1'-binaphthalene]-2,2'-diamine (CAS 960591-84-8)
- Levosimendan Impurity 20 (CAS 131741-37-2)
- Vitamin Impurity 34 (CAS 54573-75-0)
- Rivaroxaban Impurity 187 (CAS CATO-C4X-1090187)
- 6-Cyclopropyl-2-(pyrrolidin-1-yl)-4-(trifluoromethyl)pyridine-3-carbonitrile (CAS 478049-65-9)
- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3-fluorobenzyl)propanoic acid (CAS 1260592-36-6)
- 1-(4-Bromophenyl)-4-methoxybutan-1-amine (CAS 1248993-86-3)
- 1-(2-(Azepan-1-yl)ethyl)piperidin-4-amine (CAS 863377-25-7)
- 5,6-Dimethoxy-1H-benzo[d]imidazol-2(3H)-one (CAS 25808-66-6)
- 2-Hydroxy-3-(tetrahydro-2H-pyran-4-yl)propanoic acid (CAS 1314901-60-4)
- Des-Pro36-Tirzepatide (CAS CATO-CPTD788937)
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