Dansyl-L-citrulline CAS 74672-25-6
| CAS No. | 74672-25-6 |
| Molecular Formula | C18H24N4O5S |
| Molecular Weight | 408.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 408.47 g/mol gives Dansyl-L-citrulline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Dansyl-L-citrulline (CAS 74672-25-6), a certified reference material (molecular formula C18H24N4O5S, MW 408.47 g/mol) for analytical method development and quality control.
The molecular framework of Dansyl-L-citrulline (C18H24N4O5S) 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.
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.
As a certified reference material (CRM), Dansyl-L-citrulline meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H24N4O5S |
| Molecular Weight | 408.47 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Dansyl Standards
- N-Dansyl-L-phenylalanine (CAS 1104-36-5)
- Dansyl-DL-phenylalanine cyclohexylammonium salt (CAS 42808-06-0)
- N-Dansyl-D-phenylalanine (CAS 56176-31-9)
- N-Dansyl-1-(2-methoxyphenyl)piperazine (CAS 439935-18-9)
- Dansyl-DL-methionine cyclohexylammonium salt (CAS 42808-13-9)
- N1-Dansyl spermine, 96% (CAS 191410-24-9)
- Dansyl-d-ala-gly (CAS 92175-75-2)
- Dansyl-L-asparagine (CAS 1100-23-8)
Recommended Standards
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- Benzyl 2-((3-cyano-4-(2-methoxyphenyl)-6-oxo-1,4,5,6-tetrahydropyridin-2-yl)thio)acetate (CAS 312508-07-9)
- N-(2-(1-Acetyl-5-(quinolin-6-yl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide (CAS 923186-95-2)
- 2-(Morpholinomethyl)aniline (CAS 95539-61-0)
- 5-Oxaspiro[3.5]Nonane-8-carbonitrile (CAS 1503527-20-5)
- 2-{[1,1'-biphenyl]-4-yl}oxirane (CAS 36099-26-0)
- 4-[(cyclopropylcarbonyl)amino]butanoic acid (CAS 926242-54-8)
- 4-(5,6-Dihydro-4H-pyrrolo[3,2-d]isoxazol-3-yl)-N,N-dimethylaniline (CAS 603067-10-3)
- Ethyl 2-(3-bromophenyl)-2-oxoacetate (CAS 62123-80-2)
- 2,2-Dimethyl-N-(pyridin-3-ylmethyl)propan-1-amine (CAS 70065-95-1)
- 2-(2-methoxy-2-oxoethyl)thiophene-3-carboxylic acid (CAS 105508-53-0)
- (1-(But-3-yn-1-yl)-1H-pyrazol-4-yl)methanamine (CAS 1407337-37-4)
- Tirzepatide Impurity 19 X TFA Salt (CAS CATO-C4X-324019)
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