Terbutaline EP Impurity D (Methylsulfonate) CAS 94109-61-2(Free Base)
| CAS No. | 94109-61-2(Free Base) |
| Molecular Formula | C19H23NO3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Terbutaline EP Impurity D (Methylsulfonate) (C19H23NO3CH4O3S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 409.50 g/mol, it falls into the moderately-high-molecular-weight range. 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 EP Impurity D (Methylsulfonate) (CAS 94109-61-2(Free Base)), a pharmacopoeial impurity reference standard (molecular formula C19H23NO3CH4O3S, MW 409.50 g/mol) used for the identification and quantification of trace impurities in APIs.
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 | C19H23NO3 CH4O3S |
| Molecular Weight | 409.50 g/mol |
| Purity | >90% |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Terbutaline Standards
- Terbutaline-d9 (CAS 1189658-09-0)
- Terbutaline impurity 115 (CAS 1217895-73-2)
- Terbutaline impurity 101 (CAS 1226543-90-3)
- Terbutaline EP Impurity C HCl (CAS 1246815-70-2)
- Terbutaline impurity 71 (CAS 13262-38-9)
- Terbutaline Impurity 13 (CAS 13494-10-5)
- Terbutaline EP impurity C (CAS 139508-58-0)
- Terbutaline EP Impurity C (Hydrobromide) (CAS 139508-58-0 (free base))
Recommended Standards
- Raloxifene Impurity 22 (CAS 166975-60-6)
- Erdafitinib Impurity 2 (CAS 123342-12-1)
- Erythromycin thiocyanate impurity A reduced derivative (CAS CATO-C4X-100168)
- Iso-decyl-acetate (CAS 69103-24-8)
- 7-Fluoro-2-methylisoquinolin-1(2H)-one (CAS 1417639-53-2)
- 3-Ethoxypropane-1-sulfonamide (CAS 1483617-83-9)
- 2-Chloro-6-(4-(1-methyl-1H-pyrazol-3-yl)phenoxy)benzonitrile (CAS 303144-48-1)
- 3-(2-Nitrophenyl)-5,6-dihydro-4H-pyrrolo[1,2-c][1,2,3]triazole (CAS 1923069-20-8)
- 3-(3,4-Dimethylbenzoyl)-4-methylpyridine (CAS 1187167-85-6)
- Des-Gly29,30-Tirzepatide (CAS CATO-CPTD788944)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com