L-Thr(me) CAS 4144-02-9
| CAS No. | 4144-02-9 |
| Molecular Formula | C5H11NO3 |
| Molecular Weight | 133.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of L-Thr(me) is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
L-Thr(me) (CAS 4144-02-9), molecular formula C5H11NO3 and molecular weight 133.15 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, L-Thr(me) (C5H11NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 133.15 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C5H11NO3 |
| Molecular Weight | 133.15 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Recommended Standards
- N-Me-Thr-OH (CAS 2812-28-4)
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- (3R,4S)-4-Methoxytetrahydrofuran-3-amine (CAS 1909294-55-8)
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- 2,6-Dichloropyridine-3-boronic Acid (CAS 148493-34-9)
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- Methyl 4-amino-2-(methylsulfonyl)thiazole-5-carboxylate (CAS 951804-64-1)
- [3-31]-Semaglutide D (CAS C152H230N42O47)
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