Lithium 3-(tert-butyl)-1,2,4-oxadiazole-5-carboxylate CAS 2138311-80-3
| CAS No. | 2138311-80-3 |
| Molecular Formula | C7H9N2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Lithium 3-(tert-butyl)-1,2,4-oxadiazole-5-carboxylate (C7H9N2O3Li) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Lithium 3-(tert-butyl)-1,2,4-oxadiazole-5-carboxylate (CAS 2138311-80-3), a certified reference material (molecular formula C7H9N2O3Li, MW 176.10 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), Lithium 3-(tert-butyl)-1,2,4-oxadiazole-5-carboxylate 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 | C7H9N2O3 Li |
| Molecular Weight | 176.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 5-Chloro-3-(4-fluorophenyl)-1H-1,2,4-triazole (CAS 1315346-33-8)
- 5-[(3-Chloro-4-fluorophenoxy)methyl]-2-furohydrazide (CAS 832738-03-1)
- 2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-2,2-difluoro-N-(piperidin-4-yl)acetamide; trifluoroacetic acid (CAS 1823188-45-9)
- 1-(3-Chloro-4-methoxyphenyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea (CAS 1396848-74-0)
- 3-Chloro-2-(pyridin-3-yloxy)aniline (CAS 869945-98-2)
- 6-(Butylamino)-3,4-dihydronaphthalen-1(2H)-one (CAS 92499-87-1)
- Ethyl (E)-2-(3-(4-ethoxystyryl)-6-oxo-5,6-dihydropyridazin-1(4H)-yl)acetate (CAS 303146-61-4)
- N,N-dimethyl-5-oxohexahydrocyclopenta[c]pyrrole-2(1H)-carboxamide (CAS 1042666-57-8)
- Neostigmine impurity 45 (CAS CATO-C4X-204245)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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