| CAS No. | CATO-C4X-152545 |
| Molecular Formula | C18[13C]H21D3N2O4 0.5 C4H4O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), Formoterol-13C-d3 Hemifumarate 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.
CATO supplies Formoterol-13C-d3 Hemifumarate (CAS CATO-C4X-152545), a certified reference material (molecular formula C18[13C]H21D3N2O4 0.5 C4H4O4, MW 463.50 g/mol) for analytical method development and quality control.
Formoterol-13C-d3 Hemifumarate (C18[13C]H21D3N2O4 0.5 C4H4O4) contains deuterium isotope labeling, a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
| Molecular Formula | C18[13C]H21D3N2O4 0.5 C4H4O4 |
| Molecular Weight | 463.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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 |
| Degree of Unsaturation (DBE) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |