benzo[d][1,3]dioxol-5-yldiphenylphosphine oxide CAS 209981-66-8
| CAS No. | 209981-66-8 |
| Molecular Formula | C19H15O3P |
| Molecular Weight | 322.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures benzo[d][1,3]dioxol-5-yldiphenylphosphine oxide 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.
benzo[d][1,3]dioxol-5-yldiphenylphosphine oxide (CAS 209981-66-8) is a high-purity analytical reference standard with the molecular formula C19H15O3P and a molecular weight of 322.29 g/mol.
The molecular framework of benzo[d][1,3]dioxol-5-yldiphenylphosphine oxide (C19H15O3P) 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 | C19H15O3P |
| Molecular Weight | 322.29 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
Related benzo Standards
- N-(benzo[d][1,3]dioxol-5-yl)-2-(3-formyl-1H-indol-1-yl)acetamide (CAS 294889-52-4)
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- 3-(((Benzo[d][1,3]dioxol-5-ylmethyl)amino)methyl)-7-methylquinolin-2(1H)-one (CAS 484025-55-0)
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- 2-(Benzo[d]thiazol-2-yl)-3-(2,4-dimethoxyphenyl)acrylonitrile (CAS 155838-47-4)
- 3-((1H-Benzo[d]imidazol-2-yl)methyl)-2-(phenylimino)thiazolidin-4-one (CAS 89334-78-1)
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Recommended Standards
- 4-(4-Formyl-2-pyrimidinyl)phenyl 4-fluorobenzenecarboxylate (CAS 477870-91-0)
- Fluconazole EP Impurity I (CAS 749821-19-0)
- 4-(3-Nitrobenzenesulfonamido)benzoic acid (CAS 59923-19-2)
- Sulfasalazine EP Impurity I (CAS 21542-82-5)
- 1-((Difluoromethyl)sulfonyl)piperidin-4-amine hydrochloride (CAS 2800920-27-6)
- Methyl 2-(4,5-dimethoxy-2-{[4-(2-methoxyphenyl)piperazin-1-yl]sulfonyl}phenyl)acetate (CAS 497060-56-7)
- 2-((3,4-Dibromophenyl)amino)-1H-purin-6(9H)-one (CAS 123994-76-3)
- 1-[4-(2-fluorophenyl)-5-methyl-1,3-thiazol-2-yl]cyclobutan-1-amine hydrochloride (CAS 1909306-59-7)
- 5-(Chloromethyl)pyrimidine-2,4(1H,3H)-dione (CAS 3590-48-5)
- 3-Chloro-N-(cyclopentylmethyl)-4-fluoroaniline (CAS 919800-13-8)
- 2-Hydroxy-5-(hydroxymethyl)benzonitrile (CAS 1261483-74-2)
- (2-Fluoro-4,5-dimethoxyphenyl)methanol (CAS 79474-33-2)
- 2-(3-Bromophenyl)-3-oxobutanenitrile (CAS 30118-02-6)
- [5-31]-Semaglutide (CAS CATO-C4X-2226263)
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