7-O-(Triethylsilyl)-2-O-tert-butyl(dimethyl)silyl 2-Debenzoyl Paclitaxel 2-Pentanoate CAS 1055033-93-6
| CAS No. | 1055033-93-6 |
| Molecular Formula | C57H83NO14Si2 |
| Molecular Weight | 1062.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
7-O-(Triethylsilyl)-2-O-tert-butyl(dimethyl)silyl 2-Debenzoyl Paclitaxel 2-Pentanoate (CAS 1055033-93-6), molecular formula C57H83NO14Si2 and molecular weight 1062.44 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C57H83NO14Si2, 7-O-(Triethylsilyl)-2-O-tert-butyl(dimethyl)silyl 2-Debenzoyl Paclitaxel 2-Pentanoate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 1062.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C57H83NO14Si2 |
| Molecular Weight | 1062.44 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 1 |
Related O Standards
- 7-O-(Triethylsilyl)-2-O-tert-butyl(dimethyl)silyl Paclitaxel (CAS 156413-61-5)
- 7-O-(Triethylsilyl)-2-O-tert-butyl(dimethyl)silyl-2-debenzoyl Paclitaxel (CAS 162459-94-1)
- 7,10,13-Tris(triethylsilyl)-10-Deacetylbaccatin III (CAS 194720-19-9)
- 7-Triethylsilyl-13-oxobaccatin III (CAS 150665-56-8)
- 7-O-(Triethylsilyl)-10-deacetyl Baccatin III (CAS 115437-18-8)
- 10-(Triethylsilyl)benzo[lmn]thieno[2,3-f][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (CAS 2195419-19-1)
- N-(3-(Triethylsilyl)propyl)quinolin-4-amine (CAS 62619-93-6)
- Triethylsilyl 2,2-difluoro-2-(fluorosulfonyl)acetate (CAS 757203-27-3)
Recommended Standards
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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- PACAP-38 (31-38) (human, chicken, mouse, ovine, porcine, rat) (CAS 138764-85-9)
- 3',4',5',6'-Tetrakis(3,5-dicarboxyphenyl)-[1,1':2',1''-terphenyl]-3,3'',5,5''-tetracarboxylic acid (CAS 2219313-57-0)
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- 1-(3-Chloro-4-(difluoromethoxy)phenyl)-N-methylmethanamine (CAS 1250155-09-9)
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- 3-Methyl-8-(trifluoromethyl)quinolin-2-amine (CAS 1204996-92-8)
- (2S,3R,4S,5S,6R)-2-bromo-6-(methoxycarbonyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS CATO-C3D-262324)
- Tofacitinib Impurity 126 (CAS 384338-23-2)
- D-[Arg]30-Semaglutide (CAS CATO-C4X-222653)
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