(4S,4'S)-2,2'-(1,3-Dihydro-2H-inden-2-ylidene)bis[4,5-dihydro-4-isopropyloxazole] CAS 2757082-01-0
| CAS No. | 2757082-01-0 |
| Molecular Formula | C21H28N2O2 |
| Molecular Weight | 340.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(4S,4'S)-2,2'-(1,3-Dihydro-2H-inden-2-ylidene)bis[4,5-dihydro-4-isopropyloxazole] (CAS 2757082-01-0) is a high-purity analytical reference standard with the molecular formula C21H28N2O2 and a molecular weight of 340.46 g/mol.
Structurally, (4S,4'S)-2,2'-(1,3-Dihydro-2H-inden-2-ylidene)bis[4,5-dihydro-4-isopropyloxazole] (C21H28N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 340.46 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.
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 | C21H28N2O2 |
| Molecular Weight | 340.46 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 2 |
Recommended Standards
- (4R,4'R)-2,2'-(1,3-Dihydro-2H-inden-2-ylidene)bis[4,5-dihydro-4-isopropyloxazole] (CAS 2757082-24-7)
- (8S,10S,13S,14S,16R,17S)-17-(2-Hydroxyacetyl)-10,13,16-trimethyl-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one (CAS 56016-90-1)
- (2E)-1-{[1,1'-Biphenyl]-4-yl}-3-(4-tert-Butylphenyl)prop-2-en-1-one (CAS 801271-65-8)
- (e)-3-(4-(Diethylamino)benzylidene)-2-morpholinocyclopent-1-ene-1-carbaldehyde (CAS 327106-91-2)
- N-(3,5-Dimethylphenyl)-2-((5-(((2,6-dimethylphenyl)amino)methyl)-4-phenyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332909-20-3)
- 4-((1,10-Phenanthrolin-5-yl)amino)-4-oxobutanoic acid (CAS 263145-44-4)
- 1-(2-(6-(Propylamino)pyridin-3-yl)piperidin-1-yl)ethanone (CAS 1352513-01-9)
- 2-(2-Formyl-6-methoxyphenoxy)acetonitrile (CAS 127500-89-4)
- 4-Fluoro-3-methyl-o-phenylenediamine (CAS 485832-95-9)
- Phenyl(o-tolyl)methanethiol (CAS 97841-23-1)
- (6S)-6-Methoxy-4,6-dihydrofuro[3,2-c]pyran-2-one (CAS 131149-16-1)
- N-(6-Chloro-3-nitropyridin-2-yl)-2,2,2-trifluoroacetamide (CAS 60792-73-6)
- 2-(3-Bromo-4-fluorophenyl)piperazine (CAS 942474-02-4)
- [D-Ser6]-Semaglutide (CAS CATO-C4X-2226287)
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