(3aS, 4aR)-1,3-Dibenzyldihydro-1H-selenolo[3,4-d]imidazole-2,4-(3H,3aH)dione CAS 61253-80-3
| CAS No. | 61253-80-3 |
| Molecular Formula | C19H18N2O2Se |
| Molecular Weight | 385.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (3aS, 4aR)-1,3-Dibenzyldihydro-1H-selenolo[3,4-d]imidazole-2,4-(3H,3aH)dione (C19H18N2O2Se) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 385.32 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.
(3aS, 4aR)-1,3-Dibenzyldihydro-1H-selenolo[3,4-d]imidazole-2,4-(3H,3aH)dione (CAS 61253-80-3) is a high-purity analytical reference standard with the molecular formula C19H18N2O2Se and a molecular weight of 385.32 g/mol.
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 | C19H18N2O2Se |
| Molecular Weight | 385.32 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 2-(Allylthio)-5-(4-bromophenyl)-1-(p-tolyl)-1H-imidazole (CAS 1207044-01-6)
- 2-((4-Bromophenyl)thio)-1,1-diphenylethan-1-ol (CAS 251307-37-6)
- 1,3-Dibenzyldihydro-1H-selenolo[3,4-d]imidazole-2,4-(3H,3aH)dione (CAS 1185143-93-4)
- 3-((4-Bromobenzyl)thio)-6-(4-ethylphenyl)pyridazine (CAS 896046-45-0)
- 5-Amino-1-(3,4-dichlorobenzyl)-1H-indazol-3-ol (CAS 197584-46-6)
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- 4-(Difluoromethyl)-2-(ethylsulfonyl)-6-(3-methoxyphenyl)pyrimidine (CAS 862663-49-8)
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- 2-(Methylthio)-N-neopentylaniline (CAS 1247751-35-4)
- Semaglutide impurity 29 (CAS 110990-08-4)
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