Labetalol Impurity 53 CAS 802620-01-5
| CAS No. | 802620-01-5 |
| Molecular Formula | C20H25NO4 |
| Molecular Weight | 343.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Labetalol Impurity 53 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.
CATO supplies Labetalol Impurity 53 (CAS 802620-01-5), a pharmacopoeial impurity reference standard (molecular formula C20H25NO4, MW 343.42 g/mol) used for the identification and quantification of trace impurities in APIs.
Labetalol Impurity 53 (C20H25NO4) contains a flavonoid core, 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. 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 supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C20H25NO4 |
| Molecular Weight | 343.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
Related Labetalol Standards
- Labetalol Impurity 52 (CAS CATO-C4X-246652)
- Labetalol Impurity 82 (CAS CATO-C4X-246682)
- Labetalol Impurity 45 (CAS CATO-C4X-246645)
- Labetalol Impurity 41 (CAS CATO-C4X-246641)
- Labetalol Impurity 42 (CAS CATO-C4X-246642)
- Labetalol impurity 43 (CAS CATO-C4X-246643)
- Labetalol Impurity 18 (CAS CATO-C4X-246618)
- Labetalol EP Impurity A (CAS 1391051-99-2)
Recommended Standards
- Dienogest Impurity 15 (CAS CATO-C4X-229515)
- Coclaurine Impurity 16 (CAS CATO-C4X-27516)
- Dienogest EP Impurity K (CAS 106111-43-7)
- Sarpogrelate Impurity 10 (CAS CATO-C4X-291310)
- Baricitinib Impurity 129 (CAS 3043892-25-4)
- Potassium Clavulanate impurity 22 (CAS 148601-26-7)
- Sugammadex Impurity 57 (CAS 1202353-02-3 (free acid))
- DL-Cysteine hydrochloride monohydrate (CAS 116797-51-4)
- 2-(3-(Hydroxymethyl)pyrrolidin-1-yl)-1-(pyrrolidin-1-yl)ethan-1-one (CAS 1251159-63-3)
- Indometacin Impurity 17 (CAS 10414-67-2)
- Methyl 1-benzhydryl-2-methylazetidine-3-carboxylate (CAS 2231676-29-0)
- tert-Butyl 4-(4-chloro-3-methoxyphenyl)piperazine-1-carboxylate (CAS 1010073-85-4)
- 4-(4-Methyl-1-piperazinyl)-2-[(4-tetrahydropyranyl)(2,2,2-trifluoroacetyl)amino]benzoic Acid Trifluoroacetate (CAS 1034975-62-6)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
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