DA5 CAS 51717-52-3
| CAS No. | 51717-52-3 |
| Molecular Formula | C19H28N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 320.90 g/mol gives DA5 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies DA5 (CAS 51717-52-3), a certified reference material (molecular formula C19H28N2HCl, MW 320.90 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, DA5 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 320.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C19H28N2 HCl |
| Molecular Weight | 320.90 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 1-(2-Fluorophenyl)piperidin-2-one (CAS 1226150-23-7)
- tert-Butyl (2S)-2-(bromomethyl)-4,4-difluoropyrrolidine-1-carboxylate (CAS 1279894-15-3)
- 1-(2-Amino-1-(3-chlorophenyl)ethyl)pyrrolidine-3-carboxylic acid (CAS 886363-92-4)
- 5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine (CAS 33376-96-4)
- Di-tert-butyl 4-hydroxy-4-oxo-3,4-bipiperidine-1,1-dicarboxylate (CAS 1464886-43-8)
- 1-Benzyl-1h-indol-6-amine (CAS 187668-94-6)
- 2-(5-Amino-3-tert-butyl-1H-pyrazol-1-yl)-6-methylpyrimidin-4(3H)-one (CAS 1170651-35-0)
- N-Nitroso Clozapine EP Impurity D (CAS CATO-C4X-134017)
- 2-(4-Fluorophenyl)-4H-thieno[3,2-d][1,3]oxazin-4-one (CAS 439111-82-7)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
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