L-Histidine, N-[(9H-fluoren-9-ylmethoxy)carbonyl]-1-(triphenylmethyl)-, (1R)-2-carboxy-2-[[(1,1-dimethylethoxy)carbonyl]amino]-1-methylethyl ester CAS 944283-37-8
| CAS No. | 944283-37-8 |
| Molecular Formula | C49H48N4O8 |
| Molecular Weight | 820.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies L-Histidine, N-[(9H-fluoren-9-ylmethoxy)carbonyl]-1-(triphenylmethyl)-, (1R)-2-carboxy-2-[[(1,1-dimethylethoxy)carbonyl]amino]-1-methylethyl ester (CAS 944283-37-8), a certified reference material (molecular formula C49H48N4O8, MW 820.93 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, L-Histidine, N-[(9H-fluoren-9-ylmethoxy)carbonyl]-1-(triphenylmethyl)-, (1R)-2-carboxy-2-[[(1,1-dimethylethoxy)carbonyl]amino]-1-methylethyl ester is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 820.93 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.
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 | C49H48N4O8 |
| Molecular Weight | 820.93 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 28.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
Related L Standards
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com