Terbutaline Impurity 23 CAS CATO-C4X-118323
| CAS No. | CATO-C4X-118323 |
| Molecular Formula | C22H20Br2O3 |
| Molecular Weight | 492.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Terbutaline Impurity 23.
Terbutaline Impurity 23 (CAS CATO-C4X-118323) is a certified pharmaceutical impurity reference standard with the molecular formula C22H20Br2O3 and a molecular weight of 492.20 g/mol.
Structurally, Terbutaline Impurity 23 (C22H20Br2O3) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 492.20 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 certified reference material (CRM), Terbutaline Impurity 23 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 | C22H20Br2O3 |
| Molecular Weight | 492.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
Related Terbutaline Standards
- Terbutaline Impurity 19 (CAS CATO-C4X-118319)
- Terbutaline Impurity 75 (CAS CATO-C4X-118375)
- Terbutaline impurity 100 (CAS CATO-C4X-1183100)
- Terbutaline Impurity 48 (CAS CATO-C4X-118348)
- Terbutaline impurity 111 (CAS CATO-C4X-1183111)
- Terbutaline impurity 126 (CAS CATO-C4X-1183126)
- Terbutaline impurity 127 (CAS CATO-C4X-1183127)
- Terbutaline impurity 107 (CAS CATO-C4X-1183107)
Recommended Standards
- N-[(3,4-Dichlorophenyl)methoxy]-2,5-bis(2,2,2-trifluoroethoxy)benzamide (CAS 320418-35-7)
- 3-(4-(4-Bromophenyl)-5-((2,4-dichlorobenzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine (CAS 477329-75-2)
- N-[(2,4-Dichlorophenyl)methoxy]-2,5-bis(2,2,2-trifluoroethoxy)benzamide (CAS 320418-34-6)
- 3-(4-(4-Bromophenyl)-5-((2,6-dichlorobenzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine (CAS 477329-50-3)
- Lubiprostone Impurity 33 (CAS CATO-C4X-113633)
- Dapagliflozin Impurity 8 (CAS 1662702-90-0)
- Valsartan Impurity 124 (CAS CATO-C4X-1057124)
- n-(3-Bromo-4-methylphenyl)tetrahydro-2h-thiopyran-3-amine (CAS 1342614-82-7)
- Adenosine Impurity 3 (CAS CATO-C4X-24193)
- 3-(Difluoromethyl)-4-(hydroxymethyl)-5-methylpicolinonitrile (CAS 1807120-60-0)
- 2-(1-hydroxycyclohexyl)-2-methylpropanenitrile (CAS 7178-96-3)
- (2-(4-Fluorophenyl)thiazol-4-yl)methanamine (CAS 885280-17-1)
- (3E)-3-{[(2-chloro-1,3-thiazol-5-yl)methoxy]imino}-1-(4-methoxyphenyl)propan-1-one (CAS 339105-53-2)
- Semaglutide impurity 67 (CAS CATO-C4X-222667)
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