(11R)-16-bromo-5,11,26-trimethyl-7-oxa-4,5,13,20,22,27-hexaazapentacyclo[22.3.1.0²,⁶.0¹³,²¹.0¹⁴,¹⁹]octacosa-1(28),2(6),3,14,16,18,21,24,26-nonaen-23-one CAS 2573869-16-4
| CAS No. | 2573869-16-4 |
| Molecular Formula | C24H25BrN6O2 |
| Molecular Weight | 509.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(11R)-16-bromo-5,11,26-trimethyl-7-oxa-4,5,13,20,22,27-hexaazapentacyclo[22.3.1.0²,⁶.0¹³,²¹.0¹⁴,¹⁹]octacosa-1(28),2(6),3,14,16,18,21,24,26-nonaen-23-one (CAS 2573869-16-4) is a high-purity analytical reference standard with the molecular formula C24H25BrN6O2 and a molecular weight of 509.40 g/mol.
Structurally, (11R)-16-bromo-5,11,26-trimethyl-7-oxa-4,5,13,20,22,27-hexaazapentacyclo[22.3.1.0²,⁶.0¹³,²¹.0¹⁴,¹⁹]octacosa-1(28),2(6),3,14,16,18,21,24,26-nonaen-23-one (C24H25BrN6O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 509.40 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
CATO manufactures (11R)-16-bromo-5,11,26-trimethyl-7-oxa-4,5,13,20,22,27-hexaazapentacyclo[22.3.1.0²,⁶.0¹³,²¹.0¹⁴,¹⁹]octacosa-1(28),2(6),3,14,16,18,21,24,26-nonaen-23-one 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 | C24H25BrN6O2 |
| Molecular Weight | 509.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 6 |
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