Cabergoline Impurity 5 CAS 81409-91-8
| CAS No. | 81409-91-8 |
| Molecular Formula | C26H37N5O2 |
| Molecular Weight | 451.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cabergoline Impurity 5 (CAS 81409-91-8) is a certified pharmaceutical impurity reference standard with the molecular formula C26H37N5O2 and a molecular weight of 451.60 g/mol.
Cabergoline Impurity 5 (C26H37N5O2) contains a steroid 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).
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.
CATO manufactures Cabergoline Impurity 5 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C26H37N5O2 |
| Molecular Weight | 451.60 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 5 |
Related Cabergoline Standards
- Cabergoline Impurity 2 (CAS 856676-33-0)
- Cabergoline EP Impurity B (CAS 166533-36-4)
- Cabergoline (CAS 81409-90-7)
- Cabergoline Impurity 10 (CAS 1380085-95-9)
- Cabergoline-d5 (CAS 1426173-20-7)
- Cabergoline D6 (CAS CATO-C3D-262636)
- Cabergoline Impurity 49 (CAS CATO-C4X-27749)
- Cabergoline Impurity 12 (CAS CATO-C4X-277412)
Recommended Standards
- UV-384 (CAS 127519-17-9)
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- Amlodipine Impurity 93 (CAS CATO-C4X-109593)
- Oxybuprocaine Impurity 11 (CAS CATO-C4X-122711)
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- Leptophos (CAS 21609-90-5)
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- (5-Isopropyl-1-methyl-pyrazol-3-yl)methanol (CAS 1225882-63-2)
- 7-Chloro-6-(chloromethyl)quinoline (CAS 1244948-88-6)
- 3-(4-Bromothiophen-2-yl)-3-hydroxypropanoic acid (CAS 1251316-17-2)
- Semaglutide impurity 331 (CAS CATO-C4X-2226231)
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