H-Thr-OBzl · oxalate (1:1) CAS 201274-07-9
| CAS No. | 201274-07-9 |
| Molecular Formula | C11H15NO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, H-Thr-OBzl · oxalate (1:1) is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 299.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
H-Thr-OBzl · oxalate (1:1) (CAS 201274-07-9), molecular formula C11H15NO3C2H2O4 and molecular weight 299.28 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C11H15NO3 C2H2O4 |
| Molecular Weight | 299.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 2014 |
| Nitrogen Atoms | 1 |
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- N-(cyclopent-3-en-1-yl)-4-methylbenzenesulfonamide (CAS 216578-30-2)
- Methyl 2-(trifluoromethyl)-4,5-dihydro-1h-imidazole-4-carboxylate (CAS 1423025-20-0)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
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