N-Dansyl-L-threonine cyclohexylammonium salt CAS 35021-16-0
| CAS No. | 35021-16-0 |
| Molecular Formula | C16H20N2O5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including N-Dansyl-L-threonine cyclohexylammonium salt.
N-Dansyl-L-threonine cyclohexylammonium salt (CAS 35021-16-0), molecular formula C16H20N2O5SC5H11N and molecular weight 437.56 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of N-Dansyl-L-threonine cyclohexylammonium salt (C16H20N2O5SC5H11N) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C16H20N2O5S C5H11N |
| Molecular Weight | 437.56 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related N Standards
- Dansyl-DL-α-aminocaprylic acid cyclohexylammonium salt (CAS 102783-22-2)
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- Dansyl-DL-norvaline piperidinium salt (CAS 102783-76-6)
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- 3-(2-Chloro-4-pyrimidyl)-1-methylindole (CAS 1032452-86-0)
- 4-((4-Methylthiazol-2-yl)amino)-4-oxobut-2-enoic acid (CAS 42574-75-4)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
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