Terbutaline Impurity 38 CAS 62932-92-7
| CAS No. | 62932-92-7 |
| Molecular Formula | C8H7BrO3 |
| Molecular Weight | 231.04 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.
Terbutaline Impurity 38 (CAS 62932-92-7) is a certified pharmaceutical impurity reference standard with the molecular formula C8H7BrO3 and a molecular weight of 231.04 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, Terbutaline Impurity 38 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 231.04 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Terbutaline Impurity 38 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 | C8H7BrO3 |
| Molecular Weight | 231.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; 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.) | 1974 |
| Halogen Content | Br-containing |
Related Terbutaline Standards
- Terbutaline Impurity 17 (CAS CATO-C4X-118317)
- Terbutaline Impurity 18 (CAS CATO-C4X-118318)
- Terbutaline Impurity 66 (CAS 29415-97-2)
- Terbutaline-d9 (CAS 1189658-09-0)
- Terbutaline Impurity 41 (CAS CATO-C4X-118341)
- Terbutaline Impurity 51 (CAS 34068-01-4)
- Terbutaline impurity 124 (CAS CATO-C4X-1183124)
- Terbutaline impurity 125 (CAS CATO-C4X-1183125)
Recommended Standards
- Di-beta,beta'-Chloroethylphosphoric Acid-d8 (CAS 1477495-02-5)
- 2-Bromo-5-methoxybenzoic Acid (CAS 22921-68-2)
- 4-Bromophenoxyacetic Acid (CAS 1878-91-7)
- Netupitant Impurity 9 (CAS 67902-00-5)
- Selumetinib Impurity 14 (CAS CATO-C4X-305314)
- ZHC-116 Impurity 3 (CAS 1256782-94-1)
- Indobufen Impurity 88 (CAS CATO-C4X-179288)
- 3-(3-(3-Methoxybenzoyl)-1H-pyrrolo[2,3-b]pyridin-5-yl)benzamide (CAS 858118-47-5)
- Pontacyl Carmine 2B (CAS 6625-46-3)
- N-(1,2-Dihydroacenaphthylen-5-yl)-N-(methylsulfonyl)glycine (CAS 1858255-15-8)
- Methyl 2,4-difluoro-3-nitrobenzoate (CAS 1806335-57-8)
- 4-(2-Furyl)-5-[2-(4-methoxyphenyl)diazenyl]-2-pyrimidinamine (CAS 338414-27-0)
- 4-Fluoro-7-iodo-1H-indole (CAS 1000341-66-1)
- Pancreatic Polypeptide (31-36) Free Acid, human (CAS 192432-73-8)
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