10,10'-Oxybis(phenoxarsine) CAS 58-36-6
| CAS No. | 58-36-6 |
| Molecular Formula | C24H16As2O3 |
| Molecular Weight | 502.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 10,10'-Oxybis(phenoxarsine).
10,10'-Oxybis(phenoxarsine) (CAS 58-36-6), molecular formula C24H16As2O3 and molecular weight 502.23 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C24H16As2O3, 10,10'-Oxybis(phenoxarsine) contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 502.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C24H16As2O3 |
| Molecular Weight | 502.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Oxybis Standards
- 2,2'-(((Oxybis(4,1-phenylene))bis(azanediyl))bis(carbonyl))dibenzoic acid (CAS 82131-85-9)
- 2,2'-((((Oxybis(ethane-2,1-diyl))bis(oxy))bis(4,1-phenylene))bis(methaneylylidene))bis(1-phenylhydrazine) (CAS 203805-28-1)
- 3,3'-Oxybis(3-allyl-1,1,1,5,5,5-hexamethyltrisiloxane) (CAS 211931-07-6)
- 4,4'-Oxybis(2,6-dibromoaniline) (CAS 61381-91-7)
- 4,4'-((Oxybis(4,1-phenylene))bis(oxy))bis(3-(trifluoromethyl)aniline) (CAS 399506-42-4)
- 4,4'-Oxybis(3-(2-bromoethyl)-1,2-dichlorobenzene) (CAS 3245-41-8)
- 3,3'-Oxybis(3-(chloromethyl)-1,1,1,5,5,5-hexamethyltrisiloxane) (CAS 17909-34-1)
- ((Oxybis(ethane-2,1-diyl))bis(oxy))bis(ethane-2,1-diyl) bis(3-morpholinopropanoate) (CAS 71487-08-6)
Recommended Standards
- Miconazole EP Impurity E (CAS CATO-C4X-180228)
- 2-(2-Fluoropropan-2-yl)-5-(tributylstannyl)-4-(trifluoromethyl)thiazole (CAS 2806011-98-1)
- 4-(5-((4-Bromobenzyl)thio)-4-(4-bromophenyl)-4H-1,2,4-triazol-3-yl)pyridine (CAS 477329-65-0)
- N-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-2-(4-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)acetamide (CAS 338409-44-2)
- 2-Amino-5-(trifluoromethyl)benzyl Alcohol (CAS 220107-65-3)
- N-Isopropyl-2,5-dimethyl-3-phenylpyrazolo[1,5-a]pyrimidin-7-amine (CAS 849916-39-8)
- 3-(Oct-1-en-3-yl)dihydrofuran-2,5-dione (CAS 101012-83-3)
- Chlorpromazine Impurity 13 (CAS 5845-30-7)
- (2-Ethylphenyl)(pyridin-2-yl)methanol (CAS 92247-71-7)
- 1-hexadecyl-3-methylimidazolium hexafluorophosphate (CAS 219947-95-2)
- Methyl 3-((3-bromophenyl)amino)propanoate (CAS 857576-77-3)
- Methyl 3-(2-Fluorophenyl)-3-oxopropanoate (CAS 185302-86-7)
- Insulin Detemir (CAS 169148-63-4)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
Why CATO?
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