(R)-2,6-Dibromo-4-hydroxydinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide CAS 861909-33-3
| CAS No. | 861909-33-3 |
| Molecular Formula | C20H11Br2O4P |
| Molecular Weight | 506.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (R)-2,6-Dibromo-4-hydroxydinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
(R)-2,6-Dibromo-4-hydroxydinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide (CAS 861909-33-3), molecular formula C20H11Br2O4P and molecular weight 506.08 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (R)-2,6-Dibromo-4-hydroxydinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide (C20H11Br2O4P) contains a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.5, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 506.08 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C20H11Br2O4P |
| Molecular Weight | 506.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
Related R Standards
- (11bS)-2,6-Dibromo-4-hydroxydinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide (CAS 1644121-35-6)
- 4-(3,5-Dibromo-2-pyridylazo)-N-ethyl-N-(3-sulfo-propyl)aniline sodium salt monohydrate (CAS 100743-65-5)
- 11-(3,5-Dibromo-4-hydroxyphenyl)-3,3,8-trimethyl-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-1-one (CAS 1024232-75-4)
- 1,2-Dibromo-1h,1h,2h-perfluorooctane (CAS 51249-62-8)
- (E)-[(5,7-Dibromo-1-benzofuran-2-yl)(phenyl)methylidene]amino thiophene-2-carboxylate (CAS 477858-33-6)
- 2,7-Dibromo-9-(tridecan-7-yl)-9H-carbazole (CAS 1256704-63-8)
- 2,6-Dibromo-4,4-dihexyl-4H-cyclopenta[2,1-b:3,4-b’]dithiophene (CAS 528570-55-0)
- 2,7-Dibromo-9-(tridecan-7-ylidene)-9H-fluorene (CAS 738580-15-9)
Recommended Standards
- 4-Pivaloyloxy Toremifene (CAS 177748-20-8)
- Hydrazinecarbothioamide, 2,2'-(1,2-ethanediylidene)bis[N-[(4-methoxyphenyl)methyl]-, copper complex (CAS 123988-72-7)
- ((2R,3S,4R,5R)-5-(6-Amino-8-bromo-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl trihydrogen diphosphate (CAS 23600-16-0)
- 3-(2-Fluorobenzyl)-6,8-diiodoquinazolin-4(3H)-one (CAS 302913-43-5)
- 1-[(tert-butoxy)carbonyl]-4-(2,2,2-trifluoroethoxy)piperidine-4-carboxylic acid (CAS 1197656-74-8)
- Nicardipine Impurity 49 (CAS 27058-12-4)
- 2-Methyl-1-(naphthalen-1-yl)propan-1-amine (CAS 93005-12-0)
- 1-(1-Ethylpiperidin-3-yl)-N-methylmethanamine (CAS 937648-03-8)
- 5-(3-Methylpiperidin-3-yl)-3-phenyl-1,2,4-oxadiazole hydrochloride (CAS 1956307-81-5)
- 6-(1-Hydroxycyclohexyl)pyridin-3-ol (CAS 1058159-11-7)
- 5-Bromo-6-methoxy-1-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1427503-67-0)
- N-(6-(Chloromethyl)-4-methoxypyridin-2-yl)acetamide (CAS 1393543-85-5)
- 3-{3-methoxy-2-[(1-methyl-1H-pyrazol-4-yl)methoxy]phenyl}prop-2-enoic acid (CAS 1158130-76-7)
- Peptide Impurity 28 (CAS 1350456-64-2)
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