286460-74-0 Fmoc-Val-OH-1-13C L-Valine-1-13C, N-Fmoc derivative N-(9-Fluorenylmethoxycarbonyl)-L-valine-1-13C CAS 286460-74-0
| CAS No. | 286460-74-0 |
| Molecular Formula | C19[13C]H33NO4 |
| Molecular Weight | 352.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
286460-74-0 Fmoc-Val-OH-1-13C L-Valine-1-13C, N-Fmoc derivative N-(9-Fluorenylmethoxycarbonyl)-L-valine-1-13C (CAS 286460-74-0), molecular formula C19[13C]H33NO4 and molecular weight 352.47 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 286460-74-0 Fmoc-Val-OH-1-13C L-Valine-1-13C, N-Fmoc derivative N-(9-Fluorenylmethoxycarbonyl)-L-valine-1-13C is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 352.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C19[13C]H33NO4 |
| Molecular Weight | 352.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
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