Terbutaline Impurity 40 CAS CATO-C4X-118340
| CAS No. | CATO-C4X-118340 |
| Molecular Formula | C19H23NO3 |
| Molecular Weight | 313.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Terbutaline Impurity 40 (C19H23NO3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Terbutaline Impurity 40 (CAS CATO-C4X-118340), a pharmacopoeial impurity reference standard (molecular formula C19H23NO3, MW 313.39 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Terbutaline Impurity 40 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 | C19H23NO3 |
| Molecular Weight | 313.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Terbutaline Standards
- Terbutaline EP Impurity D (CAS 94109-61-2)
- Terbutaline Impurity 20 (CAS CATO-C4X-118320)
- Terbutaline Impurity 26 (CAS CATO-C4X-118326)
- Terbutaline Impurity 42 (CAS CATO-C4X-118342)
- Terbutaline Impurity 7 (CAS 71324-19-1)
- Terbutaline impurity 114 (CAS CATO-C4X-1183114)
- Terbutaline impurity 113 (CAS CATO-C4X-1183113)
- Terbutaline Impurity 78 (CAS CATO-C4X-118378)
Recommended Standards
- Rosuvastatin Impurity 171 (CAS CATO-C4X-1169171)
- Pioglitazone impurity 34 (CAS CATO-C4X-138334)
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- Oseltamivir impurity 289 (CAS 1443055-47-7)
- Tunodafil Impurity 2 (CAS CATO-C4X-31102)
- Calcipotriol Impurity 15 (CAS 104846-63-1)
- Fexofenadine Impurity 10 (CAS CATO-C4X-179410)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com