Dansyl-L-leucine cyclohexylammonium salt CAS 42954-58-5
| CAS No. | 42954-58-5 |
| Molecular Formula | C18H24N2O4S |
| 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 Dansyl-L-leucine cyclohexylammonium salt.
CATO supplies Dansyl-L-leucine cyclohexylammonium salt (CAS 42954-58-5), a certified reference material (molecular formula C18H24N2O4SC6H13N, MW 463.64 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Dansyl-L-leucine cyclohexylammonium salt is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 463.64 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.
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 | C18H24N2O4S C6H13N |
| Molecular Weight | 463.64 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.) | 1969 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Dansyl Standards
- Dansyl-DL-α-aminocaprylic acid cyclohexylammonium salt (CAS 102783-22-2)
- Dansyl-DL-α-amino-n-butyric acid piperidinium salt (CAS 102783-63-1)
- Dansyl-DL-norvaline piperidinium salt (CAS 102783-76-6)
- (N-Dansyl)biocytinamidoethyl Methanethiosulfonate (CAS 1041392-69-1)
- Dansyl-L-valine (CAS 1098-50-6)
- Dansyl-L-isoleucine (CAS 1100-21-6)
- Dansyl-L-leucine (CAS 1100-22-7)
- Dansyl-L-asparagine (CAS 1100-23-8)
Recommended Standards
- 3-Methyl-1-(2-octylphenyl)-1H-pyrazol-5(4H)-one (CAS 142199-91-5)
- (6-Bromo-1-methyl-1H-pyrrolo[3,2-b]pyridin-3-yl)methanol (CAS 2231673-28-0)
- Pentane-1,5-diylbis(triphenylphosphonium) bromide (CAS 22884-31-7)
- (1AS)-3-acetyl-2,3-dihydro-1H-cyclopropa[c]indol-5(1aH)-one (CAS 133629-87-5)
- (4-Bromophenyl)(cyclopropyl)(imino)-l6-sulfanone (CAS 1906860-50-1)
- 2-Cyano-N-(4-(6-oxo-1,6-dihydropyridazin-3-yl)phenyl)acetamide (CAS 88408-43-9)
- N-Cyclopropylpyrazin-2-amine (CAS 1036579-09-5)
- 5-(1H-pyrrol-1-yl)-1,3-Dihydro-2H-benzo[d]imidazole-2-thione (CAS 172152-53-3)
- Thieno[2,3:4,5]benzo[1,2-d][1,3]dioxole-6-carboxylic acid methyl ester (CAS 19492-85-4)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
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