Terbutaline impurity 126 CAS CATO-C4X-1183126
| CAS No. | CATO-C4X-1183126 |
| Molecular Formula | C12H9Br3O5 |
| Molecular Weight | 472.91 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.
As a process- or degradation-related impurity, Terbutaline impurity 126 (CAS CATO-C4X-1183126, C12H9Br3O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Terbutaline impurity 126 (C12H9Br3O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 472.91 g/mol, it falls into the moderately-high-molecular-weight range. 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).
As a certified reference material (CRM), Terbutaline impurity 126 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 | C12H9Br3O5 |
| Molecular Weight | 472.91 g/mol |
| Appearance | Off-white to pale 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
Related Terbutaline Standards
- Terbutaline impurity 127 (CAS CATO-C4X-1183127)
- Terbutaline impurity 111 (CAS CATO-C4X-1183111)
- Terbutaline impurity 107 (CAS CATO-C4X-1183107)
- Terbutaline impurity 109 (CAS CATO-C4X-1183109)
- Terbutaline Impurity 48 (CAS CATO-C4X-118348)
- Terbutaline impurity 100 (CAS CATO-C4X-1183100)
- Terbutaline Impurity 89 (CAS CATO-C4X-118389)
- Terbutaline Impurity 19 (CAS CATO-C4X-118319)
Recommended Standards
- 2-[2-(4-Chlorophenyl)-4-phenyl-1,3-thiazol-5-yl]-N-[3-(trifluoromethyl)phenyl]acetamide (CAS 338957-21-4)
- 2-(2-(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)acetyl)-N-phenylhydrazine-1-carbothioamide (CAS 338979-13-8)
- methyl (1R,3S)-1-(1-(tert-butoxycarbonyl)-5-chloro-1H-indol-3-yl)-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylate (CAS 1395347-28-0)
- 2-(2-(2-Chlorophenyl)-4-phenylthiazol-5-yl)-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 338957-28-1)
- Apremilast Impurity 4 (CAS 2201974-01-6)
- Trelagliptin Impurity 9 (CAS 1938080-44-4)
- Lifitegrast Impurity 173 (CAS CATO-C4X-2409173)
- 2-Amino-4H-benzo[e][1,3]thiazin-4-one (CAS 15601-85-1)
- 6-((7-(N,N-dimethylsulfamoyl)benzo[c][1,2,5]oxadiazol-4-yl)amino)hexanoic acid (CAS 1820741-40-9)
- 4-(3-Aminobenzoyl)-3-methylpiperazin-2-one hydrochloride (CAS 1835958-34-3)
- 3-(4-Bromophenyl)bicyclo[1.1.1]Pentan-1-amine (CAS 1935352-56-9)
- 1-nitroso-1H-pyrrole-2-carbaldehyde (CAS CATO-C4X-194625)
- 5-Chloro-2-(3-methylpiperazin-1-yl)pyrimidine hydrochloride (CAS 1420846-53-2)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
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