Docetaxel Impurity 55 CAS 173101-59-2
| CAS No. | 173101-59-2 |
| Molecular Formula | C41H49NO13 |
| Molecular Weight | 763.83 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Docetaxel Impurity 55.
CATO supplies Docetaxel Impurity 55 (CAS 173101-59-2), a pharmacopoeial impurity reference standard (molecular formula C41H49NO13, MW 763.83 g/mol) used for the identification and quantification of trace impurities in APIs.
Docetaxel Impurity 55 (C41H49NO13) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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 quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C41H49NO13 |
| Molecular Weight | 763.83 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Nitrogen Atoms | 1 |
Related Docetaxel Standards
- Docetaxel Impurity 54 (CAS 173101-47-8)
- Docetaxel Impurity 47 (CAS 1144034-42-3)
- Docetaxel EP Impurity A (CAS 1887057-05-7)
- Docetaxel Impurity 28(N-Formyl impurity) (CAS CATO-C4X-161928)
- Docetaxel EP Impurity B (CAS 167074-97-7)
- Docetaxel EP Impurity D (CAS 162784-72-7)
- Docetaxel Impurity 8 (CAS CATO-C4X-16198)
- Docetaxel EP Impurity B (CAS CATO-C4X-161980)
Recommended Standards
- Isavuconazole Impurity 34 (CAS CATO-C4X-123635)
- Levothyroxine Related Compound (CAS 93647-48-4)
- L-Histidinamide, N-[(phenylmethoxy)carbonyl]-L-tryptophyl-L-α-glutamyl-N-[(1S)-3-fluoro-1-(2-methoxy-2-oxoethyl)-2-oxopropyl]methyl ester (CAS 210345-00-9)
- Suc-Leu-Leu-Val-Tyr-AMC (CAS 94367-21-2)
- Baclofen impurity 45 (CAS CATO-C4X-101245)
- Calcitonin Impurity 9 (CAS 28567-37-5)
- Methotrexate Impurity 71 (CAS CATO-C4X-115471)
- 4,6,7-Trihydroxy-1,2,3,4-tetrahydroisoquinoline-5-carboxylic acid (CAS 807262-08-4)
- 5-Amino-1-(3-fluorobenzyl)-N-(thiophen-2-ylmethyl)-1H-1,2,3-triazole-4-carboxamide (CAS 899737-56-5)
- N-(tert-Butyl)-6-chloro-5-(1H-pyrrol-1-yl)pyrimidin-4-amine (CAS 1710472-50-6)
- 2-Amino-2-(3-bromophenyl)ethan-1-ol hydrochloride (CAS 1421603-70-4)
- 5-Bromo-7-methyl-1H-indole-3-carboxylic acid (CAS 23609-28-1)
- N-methyl-1-oxo-2-phenyl-1,2-dihydroisoquinoline-4-carboxamide (CAS 477850-76-3)
- Galanin Message Associated Peptide (44-59) amide (CAS 125455-59-6)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com