rel-Oxazole, 2,2′-(1,2-phenylene)bis[4-ethyl-4,5-dihydro-, (4R,4′S)- CAS 220336-40-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 220336-40-3 |
| Molecular Formula | C16H20N2O2 |
| Molecular Weight | 272.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
rel-Oxazole, 2,2′-(1,2-phenylene)bis[4-ethyl-4,5-dihydro-, (4R,4′S)- (CAS 220336-40-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H20N2O2. Molecular weight: 272.34 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H20N2O2 |
| Molecular Weight | 272.34 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 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.) | 2019 |
| Nitrogen Atoms | 2 |
Related rel Standards
- Oxazole, 2,2′-(1,2-phenylene)bis[4-ethyl-4,5-dihydro-, (4S,4′S)- (CAS 352351-27-0)
- 2-{4-[(5-methyl-1,2-oxazole-4-)amido]phenyl}acetic acid (CAS 953734-04-8)
- 2-[4-(1,2-oxazole-3-amido)phenyl]acetic acid (CAS 1285096-62-9)
- 3-[(5-methyl-1,2-oxazole-4-)amido]benzoic acid (CAS 67387-54-6)
- 4-[(5-methyl-1,2-oxazole-4-)amido]benzoic acid (CAS 67387-52-4)
- 3-phenyl-1,2-oxazole-5-sulfonyl chloride (CAS 37543-50-3)
- 1-(5-Methyl-1,2-oxazole-4-carbonyl)piperidine-4-carboxylic acid (CAS 926261-98-5)
- 2-Phenyl-1,3-oxazole-4,5-dicarboxylic acid (CAS 15926-44-0)
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