1858256-38-8 (3-Naphthalen-1-yl-[1,2,4]oxadiazol-5-ylmethyl)-carbamic acid tert-butyl ester MFCD27937079 CAS 1858256-38-8
| CAS No. | 1858256-38-8 |
| Molecular Formula | C18H19N3O3 |
| Molecular Weight | 325.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
1858256-38-8 (3-Naphthalen-1-yl-[1,2,4]oxadiazol-5-ylmethyl)-carbamic acid tert-butyl ester MFCD27937079 (CAS 1858256-38-8), molecular formula C18H19N3O3 and molecular weight 325.36 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1858256-38-8 (3-Naphthalen-1-yl-[1,2,4]oxadiazol-5-ylmethyl)-carbamic acid tert-butyl ester MFCD27937079 (C18H19N3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 325.36 g/mol, it falls into the moderately-high-molecular-weight range. 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).
As a certified reference material (CRM), 1858256-38-8 (3-Naphthalen-1-yl-[1,2,4]oxadiazol-5-ylmethyl)-carbamic acid tert-butyl ester MFCD27937079 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H19N3O3 |
| Molecular Weight | 325.36 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- 2-Chloro-4-(1-fluoroethyl)pyridine (CAS 1307255-24-8)
- Autocamtide-2 TFA Salt (CAS 129198-88-5（free base）)
- 3-Benzylfuran-2,4(3H,5H)-dione (CAS 22884-81-7)
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