Riociguat Impurity 23 CAS 4090-37-3
| CAS No. | 4090-37-3 |
| Molecular Formula | C16H18N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Riociguat Impurity 23 (CAS 4090-37-3), a certified reference material (molecular formula C16H18N2O2HCl, MW 306.79 g/mol) for analytical method development and quality control.
The molecular framework of Riociguat Impurity 23 (C16H18N2O2HCl) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures Riociguat Impurity 23 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 | C16H18N2O2 HCl |
| Molecular Weight | 306.79 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Riociguat Standards
- Riociguat-13C-d3 (CAS 1304478-43-0)
- Riociguat Impurity 2 (CAS 1361569-10-9)
- Riociguat Impurity 16 (CAS 1361569-18-7)
- Riociguat Impurity 18 (CAS 1361569-23-4)
- Riociguat Impurity 1 (CAS 1702271-98-4)
- Riociguat Impurity N10 (CAS 2101651-50-5)
- Riociguat Impurity N3 (CAS 2512205-25-1)
- Riociguat Impurity 30 (CAS 2518331-19-4)
Recommended Standards
- 6-Bromo-2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1010101-10-6)
- (S)-Methyl 2,6-diaminohexanoate xhydrochloride (CAS 15445-34-8)
- 3-Benzyl 8-(tert-butyl) (1R,5R)-1-(hydroxymethyl)-3,8-diazabicyclo[3.2.1]Octane-3,8-dicarboxylate (CAS 1290626-10-6)
- (Z)-N-(3-Chlorophenyl)-N'-hydroxy-3-nitrobenzene-1-carboximidamide (CAS 866049-30-1)
- (3-(3-((2,4-Dichlorobenzyl)oxy)phenyl)-1H-pyrazol-1-yl)(3,4-dichlorophenyl)methanone (CAS 477712-59-7)
- 6-propoxy-1,2,3,4-tetrahydroisoquinoline (CAS 1340557-66-5)
- Pyrrolo[1,2-a]pyrazine-3-carboxylic acid (CAS 588720-53-0)
- n-Cyclopropyl-2-(6-hydroxy-2-mercaptopyrimidin-4-yl)acetamide (CAS 1105191-81-8)
- Cinitapride Impurity 1 (CAS 121873-04-9)
- 30003-72-6 insulin chain b oxidized (CAS 30003-72-6)
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