2,2'-methylenebis[(4 <I> R </I> ,5 <I> S </I>)-4,5-diphenyl-2-oxazoline] CAS 139021-82-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 139021-82-2 |
| Molecular Formula | C31H50N2O2 |
| Molecular Weight | 482.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,2'-methylenebis[(4 <I> R </I> ,5 <I> S </I>)-4,5-diphenyl-2-oxazoline] (CAS 139021-82-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C31H50N2O2. Molecular weight: 482.74 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C31H50N2O2 |
| Molecular Weight | 482.74 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 5-(Dodecylsulfanyl)-4-phenyl-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2(7),5-trien-3-one (CAS 1221724-26-0)
- Bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphine (CAS 1173023-24-9)
- 1,2-dipalmitoyl(d62)-sn-glycero-3-[phospho-l-serine] sodium salt 327178-94-9 (CAS 327178-94-9)
- 2-Ethynylpyridine (CAS 1945-84-2)
- Physalin B (CAS 23133-56-4)
- (R)-3-Hydroxy-1-isopropyl-2,3-dihydro-1H-indole-5,6-dione (CAS 67491-46-7)
- 2-Fluoro-1-(4-methoxyphenoxy)-4-nitrobenzene (CAS 875700-53-1)
- NH-bis(C2-PEG2-NH-Boc) (CAS 2182601-69-8)
- (1S,3s)-3-(2-fluorophenyl)cyclobutan-1-ol (CAS 1807901-60-5)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
Why CATO?
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