(R)-SIPHOS CAS 443965-14-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 443965-14-8 |
| Molecular Formula | C19H20NO2P |
| Molecular Weight | 325.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-SIPHOS (CAS 443965-14-8) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C19H20NO2P. Molecular weight: 325.34 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C19H20NO2P |
| Molecular Weight | 325.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related R Standards
Recommended Standards
- (E)-3-(5-(4-nitrophenyl)furan-2-yl)-1-(thiophen-2-yl)prop-2-en-1-one (CAS 304677-48-3)
- (5E)-2-Mercapto-5-(4-nitrobenzylidene)-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 53514-58-2)
- (Z)-3-(4-(1,3-Dioxolan-2-yl)pyridin-1-ium-1-yl)-1,4-dimethoxy-1,4-dioxobut-2-ene-2-thiolate (CAS 2738672-43-8)
- n-(2-Chlorophenyl)-2-(piperazin-1-yl)acetamide (CAS 851903-44-1)
- 6-(2-Hydroxyethoxy)-1-hexanol (CAS 23684-16-4)
- 4-(5-(Hydroxy(phenyl)methyl)-3-methylpyridin-2-yl)piperazine-1-carbaldehyde (CAS 1355222-41-1)
- N'-[(6-chloropyridin-3-yl)carbonyl]-4-(trifluoromethyl)benzohydrazide (CAS 263563-39-9)
- 1-(4-(Benzo[d]oxazol-2-yl)phenyl)ethanone (CAS 37069-08-2)
- 5-(Trifluoromethyl)-1H-imidazole-4-carbonitrile (CAS 1935440-02-0)
- Peptide Impurity 34 (CAS 21282-09-7)
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 13829788188 / jacky.chen@cato-chem.com