((1S,2S,3S,5S)-5-(2-Amino-6-(benzyloxy)-9H-purin-9-yl)-3-(dimethyl(phenyl)silyl)-1-hydroxycyclopentane-1,2-diyl)dimethanol CAS 701278-05-9
| CAS No. | 701278-05-9 |
| Molecular Formula | C27H33N5O4Si |
| Molecular Weight | 519.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
((1S,2S,3S,5S)-5-(2-Amino-6-(benzyloxy)-9H-purin-9-yl)-3-(dimethyl(phenyl)silyl)-1-hydroxycyclopentane-1,2-diyl)dimethanol (CAS 701278-05-9), molecular formula C27H33N5O4Si and molecular weight 519.67 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, ((1S,2S,3S,5S)-5-(2-Amino-6-(benzyloxy)-9H-purin-9-yl)-3-(dimethyl(phenyl)silyl)-1-hydroxycyclopentane-1,2-diyl)dimethanol (C27H33N5O4Si) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 519.67 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.
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.
Physical & Chemical Properties
| Molecular Formula | C27H33N5O4Si |
| Molecular Weight | 519.67 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 5 |
Recommended Standards
- Terpendole C (CAS 156967-65-6)
- Perindopril EP Impurity O (CAS CATO-C4X-125272)
- Benzyl((S)-1-(((S)-1-(((S)-1-(1,3-dioxolan-2-yl)-3-methylbutyl)amino)-4-methyl-1-oxopentan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)carbamate (CAS 1415548-00-3)
- Boceprevir-d9 (CAS 1256751-11-7)
- (2R)-2-amino-2-(3-chloro-4-methoxyphenyl)acetic acid (CAS 109971-52-0)
- 2-(((1-Allyl-6-oxo-4-(trifluoromethyl)-1,6-dihydropyrimidin-2-yl)thio)methyl)benzonitrile (CAS 866143-17-1)
- 2-(2-HYDROXYETHYLAMINO)-N-(4-(TRIFLUOROMETHOXY)PHENYL)ACETAMIDE (CAS 1951441-22-7)
- (R)-2-amino-3-fluoro-3-methylbutanoic acid hydrochloride (CAS 2109253-08-7)
- [10]-Dehydroparadol (CAS 53172-14-8)
- n-Benzyl-4-methoxybenzene-1-sulfonamide (CAS 119059-70-0)
- N-(2-methoxybenzyl)-N-methylglycine (CAS 55739-41-8)
- 2,6-Dimethoxy-5-nitropyrimidin-4-amine (CAS 73978-74-2)
- 2-Bromo-5-fluoro-3-methylpyridine (CAS 38186-85-5)
- Des-Ser34-Gly33Tirzepatide (CAS CATO-CPTD788941)
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