N-Nitroso Labetalol (Mixture of Diastereomers) CAS 2820170-74-7
| CAS No. | 2820170-74-7 |
| Molecular Formula | C19H23N3O4 |
| Molecular Weight | 357.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-Nitroso Labetalol (Mixture of Diastereomers) (CAS 2820170-74-7), molecular formula C19H23N3O4 and molecular weight 357.40 g/mol, is a CATO reference standard with documented purity and traceability.
N-Nitroso Labetalol (Mixture of Diastereomers) (C19H23N3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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 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.
CATO manufactures N-Nitroso Labetalol (Mixture of Diastereomers) 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.
Physical & Chemical Properties
| Molecular Formula | C19H23N3O4 |
| Molecular Weight | 357.40 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 3 |
Related N Standards
- N-nitroso Peramivir Impurity100 (CAS CATO-C4X-1833100)
- N-nitroso Peramivir Impurity 97 (CAS CATO-C4X-183397)
- N-nitroso Peramivir Impurity 99 (CAS CATO-C4X-183399)
- N-Nitroso Olanzapine EP Impurity D (CAS CATO-C4X-117853)
- N-Nitroso Midazolam EP Impurity A (CAS 59469-02-2)
- N-nitroso Ciprofloxacin Impurity 36 (CAS CATO-C4X-136236)
- N-Nitroso N-Desacetamide Zalunfiban (CAS CATO-C4X-30702)
- N-Nitroso Dorzolamide-D5 (CAS CATO-C4X-122823)
Recommended Standards
- Nicergoline Impurity 31 (CAS CATO-C4X-208531)
- Nemonoxacin Impurity 31 (CAS CATO-C4X-312831)
- Ketorolac impurity 64 (CAS 141031-78-9)
- Nemonoxacin Impurity 39 (CAS 221221-39-2)
- 4-Iodophenyl pivalate (CAS 188851-45-8)
- 1-(4-Chlorophenyl)pyrrolidine-3-carboxylic acid (CAS 933719-76-7)
- (1,1,2,2,2-Pentafluoroethyl)(1,10-phenanthroline-κN1,κN10)phCOcopper chloride (CAS 2146106-26-3)
- Tetraethyl (Aminomethylene)bis(phosphonate) (CAS 80474-99-3)
- Ethyl 6-(3-bromopropyl)-2-methylpyrazolo[1,5-a]pyrimidine-7-carboxylate (CAS 1087798-41-1)
- 2-Cyclobutyl-n'-hydroxyacetimidamide (CAS 1562981-98-9)
- 2-Bromo-6-((piperidin-3-ylmethyl)thio)pyridine hydrochloride (CAS 1417794-00-3)
- n-Cyclopropyl-3-(3-fluorophenyl)acrylamide (CAS 1808468-10-1)
- 1-Butoxy-4-nitrobenzene (CAS 7244-78-2)
- MOTS-c Peptide (CAS 1627580-64-6)
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