rel-(2S,3S)-3-(tert-Butyl)-4-(2,6-dimethoxyphenyl)-2-methyl-2,3-dihydrobenzo[d][1,3]oxaphosphole CAS 1292310-20-3
| CAS No. | 1292310-20-3 |
| Molecular Formula | C20H25O3P |
| Molecular Weight | 344.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures rel-(2S,3S)-3-(tert-Butyl)-4-(2,6-dimethoxyphenyl)-2-methyl-2,3-dihydrobenzo[d][1,3]oxaphosphole 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.
rel-(2S,3S)-3-(tert-Butyl)-4-(2,6-dimethoxyphenyl)-2-methyl-2,3-dihydrobenzo[d][1,3]oxaphosphole (CAS 1292310-20-3) is a high-purity analytical reference standard with the molecular formula C20H25O3P and a molecular weight of 344.38 g/mol.
The molecular framework of rel-(2S,3S)-3-(tert-Butyl)-4-(2,6-dimethoxyphenyl)-2-methyl-2,3-dihydrobenzo[d][1,3]oxaphosphole (C20H25O3P) is characterized by a steroid core, a phosphonate group, a hydroxyl group, an ether linkage. 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 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.
Physical & Chemical Properties
| Molecular Formula | C20H25O3P |
| Molecular Weight | 344.38 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Recommended Standards
- Ethyl 1-tosyl-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (CAS 1265235-20-8)
- Ethyl 2-[4-(4-fluorophenyl)piperazin-1-yl]-4-methylpyrimidine-5-carboxylate (CAS 1306738-65-7)
- N-(3-Fluorophenyl)-2-(4-methyl-6-oxo-2-(piperidin-1-yl)pyrimidin-1(6H)-yl)acetamide (CAS 1251559-57-5)
- Phenprocoumon Sulfate (CAS 131147-41-6)
- rac-(2R,3aR,7aR)-2-phenyl-octahydrofuro[3,2-b]pyridine (CAS 1909294-88-7)
- tert-Butyl 8-hydroxy-6-oxa-3-azabicyclo[3.2.1]octane-3-carboxylate (CAS 1638772-20-9)
- 4-(Chloromethyl)-1-methoxyhexane (CAS 1488625-04-2)
- 1-(4-Chlorophenyl)-3-(5-methyloxazol-3(2H)-yl)urea (CAS 55807-83-5)
- 2-Amino-3-((S)-1-(tert-butoxycarbonyl)pyrrolidin-2-yl)propanoic acid (CAS 1260658-73-8)
- 1-(Carboxycarbonyl)pyrrolidine-2-carboxylic acid (CAS 141724-22-3)
- Megestrol acetate EP Impurity G (CAS 1259198-59-8)
- 4137-10-4 Carbamic acid, dimethyl-, compd. with dimethylamine (1:1) Carbamic acid, dimethyl-, compd. with N-methylmethanamine (1:1) Dimethylcarbamic acid compd. with dimethylamine (1:1) Dimethylammonium dimethylcarbamate (CAS 4137-10-4)
- 5-(2-Chloropyridin-3-yl)-3-(4-(trifluoromethyl)phenyl)-1,2,4-oxadiazole (CAS 1779125-25-5)
- (D-His1)-Exenatide trifluoroacetate salt (CAS 1678417-09-8)
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