Paclitaxel side chain acid CAS 949023-16-9
| CAS No. | 949023-16-9 |
| Molecular Formula | C24H21NO5 |
| Molecular Weight | 403.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Paclitaxel side chain acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Paclitaxel side chain acid (CAS 949023-16-9), molecular formula C24H21NO5 and molecular weight 403.43 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C24H21NO5, Paclitaxel side chain acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 403.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C24H21NO5 |
| Molecular Weight | 403.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Paclitaxel Standards
- Paclitaxel Impurity 49 (CAS 2180123-01-5)
- Paclitaxel Impurity N2 (CAS 337515-55-6)
- Paclitaxel Impurity 25 (CAS 153433-80-8)
- Paclitaxel Impurity 28 (CAS 32981-85-4)
- Paclitaxel Impurity 12 (CAS 4522-04-7)
- Paclitaxel Impurity N1 (CAS 132201-33-3)
- Paclitaxel Impurity 31 (CAS 171926-87-7)
- Paclitaxel Impurity N3 (CAS 163594-75-0)
Recommended Standards
- N-Fmoc-(2R,3S)-3-phenylisoserine (CAS 252206-27-2)
- Fmoc-Tyr-OH (CAS 92954-90-0)
- N-Benzyl-2-imino-1-(2-methoxyethyl)-5-oxo-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide (CAS 510762-42-2)
- Azelnidipine Impurity 6 (CAS 50626-68-1)
- Thieno[3,2-b]pyridine-6-sulfonyl chloride (CAS 1306606-64-3)
- 2-(4-Chloro-3,5-dimethylphenyl)pentan-2-ol (CAS 1443302-82-6)
- N-(3-Allyl-4-fluorobenzo[d]thiazol-2(3H)-ylidene)cyclopropanecarboxamide (CAS 865248-77-7)
- (R)-2-Amino-2-(thiophen-2-yl)acetic acid (CAS 65058-23-3)
- 2-(3-Bromo-phenyl)-oxazole-4-carboxylic acid ethyl ester (CAS 885273-06-3)
- 4-Butyl-5-(4-methoxy-phenyl)-4H-[1,2,4]triazole-3-thiol (CAS 92043-23-7)
- (2-aminoethyl)[2-(azepan-1-yl)ethyl]amine (CAS 1211492-18-0)
- tert-Butyl 2-(3-(methoxycarbonyl)-phenyl)hydrazinecarboxylate (CAS 156899-01-3)
- 4-Chloro-2-(difluoromethyl)-3-methoxy-6-methylpyridine (CAS 1806890-88-9)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
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