H-Arg-Arg-4MβNA CAS 42761-77-3
| CAS No. | 42761-77-3 |
| Molecular Formula | C23H35N9O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| 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 H-Arg-Arg-4MβNA.
H-Arg-Arg-4MβNA (CAS 42761-77-3), molecular formula C23H35N9O3HCl and molecular weight 522.05 g/mol, is a CATO reference standard with documented purity and traceability.
H-Arg-Arg-4MβNA (C23H35N9O3HCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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 H-Arg-Arg-4MβNA 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 | C23H35N9O3 HCl |
| Molecular Weight | 522.05 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 9 |
Recommended Standards
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- Clevidipine Impurity 24-13C-d3 (CAS CATO-C4X-101524)
- 4-(chloromethyl)thiazole (CAS 3364-76-9)
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- Iopromide EP Impurity G (Mixture of Diastereomers) (CAS 154361-53-2)
- 1-((4-Methoxy-1H-indol-3-yl)methyl)piperidin-4-one (CAS 873445-76-2)
- 6-Amino-1H-pyrrolo[3,2-b]pyridine (CAS 1015609-67-2)
- Semaglutide impurity 229 (CAS CATO-C4X-2226229)
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