| CAS No. | 150780-67-9 |
| Molecular Formula | C45H56N7O9P |
| Molecular Weight | 869.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
5'-O-(4,4-Dimethoxytrityl)-2'-O-methyl-N-isobutyrylguanosine-3'-(2-cyanoethyl-N,N-diisopropyl)phosphoramidite (CAS 150780-67-9) is a high-purity analytical reference standard with the molecular formula C45H56N7O9P and a molecular weight of 869.94 g/mol.
5'-O-(4,4-Dimethoxytrityl)-2'-O-methyl-N-isobutyrylguanosine-3'-(2-cyanoethyl-N,N-diisopropyl)phosphoramidite (C45H56N7O9P) contains a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
| Molecular Formula | C45H56N7O9P |
| Molecular Weight | 869.94 g/mol |
| 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) | 21.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Nitrogen Atoms | 7 |