16,19-Dimethoxy-3-[(4-methoxyphenyl)methyl]-3,21-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-1(21),2(10),4(9),5,7,13,15(20),16,18-nonaene CAS 860787-07-1
| CAS No. | 860787-07-1 |
| Molecular Formula | C29H26N2O3 |
| Molecular Weight | 450.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 450.53 g/mol gives 16,19-Dimethoxy-3-[(4-methoxyphenyl)methyl]-3,21-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-1(21),2(10),4(9),5,7,13,15(20),16,18-nonaene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
16,19-Dimethoxy-3-[(4-methoxyphenyl)methyl]-3,21-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-1(21),2(10),4(9),5,7,13,15(20),16,18-nonaene (CAS 860787-07-1) is a high-purity analytical reference standard with the molecular formula C29H26N2O3 and a molecular weight of 450.53 g/mol.
Structurally, 16,19-Dimethoxy-3-[(4-methoxyphenyl)methyl]-3,21-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-1(21),2(10),4(9),5,7,13,15(20),16,18-nonaene (C29H26N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 450.53 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.
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.
As a certified reference material (CRM), 16,19-Dimethoxy-3-[(4-methoxyphenyl)methyl]-3,21-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-1(21),2(10),4(9),5,7,13,15(20),16,18-nonaene 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 | C29H26N2O3 |
| Molecular Weight | 450.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
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- Semaglutide impurity 67 (CAS CATO-C4X-222667)
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