7-O-(Triethylsilyl)-10-deacetyl Baccatin III CAS 115437-18-8
| CAS No. | 115437-18-8 |
| Molecular Formula | C35H50O10Si |
| Molecular Weight | 658.85 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.
CATO supplies 7-O-(Triethylsilyl)-10-deacetyl Baccatin III (CAS 115437-18-8), a certified reference material (molecular formula C35H50O10Si, MW 658.85 g/mol) for analytical method development and quality control.
7-O-(Triethylsilyl)-10-deacetyl Baccatin III (C35H50O10Si) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C35H50O10Si |
| Molecular Weight | 658.85 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
Related O Standards
- 7-Triethylsilyl-13-oxobaccatin III (CAS 150665-56-8)
- 10-(Triethylsilyl)benzo[lmn]thieno[2,3-f][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (CAS 2195419-19-1)
- 7,10,13-Tris(triethylsilyl)-10-Deacetylbaccatin III (CAS 194720-19-9)
- 7-O-(Triethylsilyl)-2-O-tert-butyl(dimethyl)silyl-2-debenzoyl Paclitaxel (CAS 162459-94-1)
- N-(3-(Triethylsilyl)propyl)quinolin-4-amine (CAS 62619-93-6)
- Triethylsilyl 2,2-difluoro-2-(fluorosulfonyl)acetate (CAS 757203-27-3)
- (2-(Triethylsilyl)benzo[b]thiophen-7-yl)boronic acid (CAS 1217501-30-8)
- 3,3-Bis(triethylsilyl)propanal (CAS 1256451-79-2)
Recommended Standards
- Relebactam Impurity 134 (CAS CATO-C4X-2144134)
- 2,2-difluoro-2-[(2R,3R,4S,5R,6R)-3,4,5-tribenzyloxy-6-(benzyloxymethyl)-2-hydroxy-tetrahydropyran-2-yl]acetic acid (CAS 953423-53-5)
- (1,3,4-Oxadiazole-2,5-diyl)bis(4,1-phenylene) bis(4-heptylbenzoate) (CAS 279675-92-2)
- 26-(4-Nonylphenoxy)-3,6,9,12,15,18,21,24-octaoxahexacosyl acetate (CAS 67845-40-3)
- 3-Bromo-4-hydrazinyl-5-(pyrrolidin-1-ylsulfonyl)pyridine (CAS 1352507-96-0)
- Progesterone Impurity 23 (CAS 21063-91-2)
- 2-Cyclopentyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 66217-55-8)
- 6-Methyl-4-oxa-5-azaspiro[2.4]hept-5-ene (CAS 101960-34-3)
- (3Ar,5r,6s,6ar)-5-[(Azepan-1-yl)methyl]-2,2-dimethyl-tetrahydro-2h-furo[2,3-d][1,3]dioxol-6-ol (CAS 175229-82-0)
- Ethyl 3-cyclopropylisoxazole-4-carboxylate (CAS 639523-16-3)
- 2-(3-Methoxyphenyl)pyrimidine-5-carboxylic acid (CAS 927803-27-8)
- 4-(N,N-diethylsulfamoyl)thiophene-2-carboxylic acid (CAS 950256-64-1)
- Diethyl 4-(2-(difluoromethoxy)phenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (CAS 84761-70-6)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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