Ethyl 5-(isocyanomethyl)oxazole-4-carboxylate CAS 72030-75-2
| CAS No. | 72030-75-2 |
| Molecular Formula | C8H8N2O3 |
| Molecular Weight | 180.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 5-(isocyanomethyl)oxazole-4-carboxylate (CAS 72030-75-2), molecular formula C8H8N2O3 and molecular weight 180.16 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H8N2O3, Ethyl 5-(isocyanomethyl)oxazole-4-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 180.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C8H8N2O3 |
| Molecular Weight | 180.16 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- Methyl 4-(Isocyanomethyl)benzoate (CAS 1030268-89-3)
- 1-(Isocyanomethyl)-1H-benzotriazole (CAS 87022-42-2)
- (S)-2-ISocyanomethyl-pyrrolidine-1-carboxylic acid tert-butyl ester (CAS 1245908-97-7)
- 1-(Isocyanomethyl)-4-methoxybenzene (CAS 1197-58-6)
- 2-(Isocyanomethyl)pyridine 1-oxide (CAS 76594-49-5)
- 1-(Isocyanomethyl)-4-methylbenzene (CAS 39495-97-1)
- 2-(Isocyanomethyl)-5-methylfuran (CAS 1031256-45-7)
- 2-(isocyanomethyl)pyridine, 95% (CAS 60148-13-2)
Recommended Standards
- Ethyl 4-formylpyrimidine-5-carboxylate (CAS 62327-99-5)
- Ethyl 5-amino-4-cyano-1H-pyrazole-1-carboxylate (CAS 220131-58-8)
- Ethyl 2-(4-cyano-1H-1,2,3-triazol-1-yl)acetate (CAS 202003-10-9)
- alpha-D-Galactose (CAS 3646-73-9)
- 2-Bromo-N,N-dimethylethanamine hydrochloride (CAS 106536-45-2)
- 1-Ethylcyclobutan-1-ol (CAS 20434-30-4)
- 6,7-Dihydro-5H-pyrrolo[2,1-c][1,2,4]triazole-7-carboxylic acid (CAS 1546095-91-3)
- (S)-1-Boc-3-(4-bromophenyl)piperidine (CAS 1476776-55-2)
- 4-((Tert-butyldimethylsilyl)oxy)cyclohex-1-en-1-yl trifluoromethanesulfonate (CAS 865869-24-5)
- rac-2-[(1R,2S)-2-aminocyclopentyl]acetic acid hydrochloride (CAS 1969288-25-2)
- 7-Methyl-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 39522-25-3)
- Methoxy-dimethyl-octadecylsilane (CAS 71808-65-6)
- 3-(4-Fluorophenoxy)phenylboronic acid (CAS 283173-82-0)
- Neuropeptide GE (CAS 134748-04-2)
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