(11bR)-4-Hydroxy-2,6-bis(2,3,4,5,6-pentamethylphenyl)-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin 4-oxide CAS 1221940-48-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1221940-48-2 |
| Molecular Formula | C42H41O4P |
| Molecular Weight | 640.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (11bR)-4-Hydroxy-2,6-bis(2,3,4,5,6-pentamethylphenyl)-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin 4-oxide (CAS 1221940-48-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C42H41O4P. Molecular weight: 640.75 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C42H41O4P |
| Molecular Weight | 640.75 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 22.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
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Recommended Standards
- N1,N1,N6,N6-tetrakis((1H-benzo[d][1,2,3]triazol-1-yl)methyl)hexane-1,6-diamine (CAS 79202-98-5)
- Dansylhexyl NECA (CAS 219982-12-4)
- Bumetanide impurity 106 (CAS CATO-C4X-1986106)
- 7-Chloro-4-[(thiophen-2-yl)methyl]-2,3,4,5-tetrahydro-1,4-benzoxazepin-3-one (CAS 1341001-70-4)
- 2-Bromo-4-(chloromethyl)-3-(difluoromethyl)-6-methoxypyridine (CAS 1806869-00-0)
- [5-(trifluoromethyl)-1,3-benzoxazol-2-yl]methanol (CAS 1394041-51-0)
- 2-Hydroxy-N-methyl-2-phenylacetamide (CAS 2019-72-9)
- 4-(1H-Benzo[d][1,2,3]triazol-1-yl)-1-methylpyridin-1-ium iodide (CAS 457051-53-5)
- Demeclocycline EP Impurity B (CAS 14206-59-8)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
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