Terbutaline Impurity 56 CAS CATO-C4X-118356
| CAS No. | CATO-C4X-118356 |
| Molecular Formula | C14H17BrN2O5 |
| Molecular Weight | 373.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 373.20 g/mol gives Terbutaline Impurity 56 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Terbutaline Impurity 56 (CAS CATO-C4X-118356) is a certified pharmaceutical impurity reference standard with the molecular formula C14H17BrN2O5 and a molecular weight of 373.20 g/mol.
Terbutaline Impurity 56 (C14H17BrN2O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C14H17BrN2O5 |
| Molecular Weight | 373.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Terbutaline Standards
- Terbutaline Impurity 57 (CAS CATO-C4X-118357)
- Terbutaline impurity 86 (CAS CATO-C4X-118386)
- Terbutaline Impurity 90 (CAS CATO-C4X-118390)
- Terbutaline Impurity 79 (CAS CATO-C4X-118379)
- Terbutaline impurity 106 (CAS CATO-C4X-1183106)
- Terbutaline Sulphate Impurity 50 (CAS 50841-46-8)
- Terbutaline impurity 138 (CAS CATO-C4X-1183138)
- Terbutaline impurity 110 (CAS CATO-C4X-1183110)
Recommended Standards
- N-(4-(4-Bromophenoxy)phenyl)-5-methylisoxazole-4-carboxamide (CAS 61643-40-1)
- Flavoxate Impurity 3 (CAS 91849-09-1)
- Bambuterol Impurity N1 (CAS 81732-49-2)
- Ethyl 7-(4-bromobenzoyl)pyrrolo[1,2-b]pyridazine-5-carboxylate (CAS 853331-66-5)
- Gadoxetate impurity 30 (CAS CATO-C4X-261830)
- Venetoclax Impurity 40 (CAS CATO-C4X-249540)
- Landiolol Impurity 113 (CAS CATO-C4X-2621113)
- Cinnamylamine Hydrochloride (CAS 5586-89-0)
- 3,6-Bis(5-bromothiophen-2-yl)-2,5-didodecylpyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione (CAS 1232880-65-7)
- 3-Amino-1-(2,4-difluorophenyl)piperidin-2-one (CAS 1341063-42-0)
- 2-Thiocyanatopentane (CAS 61735-43-1)
- 2-[2-(Phenylsulfanyl)pyridin-3-yl]-1,3-benzothiazole (CAS 339112-89-9)
- 3-[(2,4-dimethoxyphenyl)sulfamoyl]-4-methoxybenzoic acid (CAS 710989-33-6)
- Semaglutide impurity 98 (CAS CATO-C4X-222698)
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