Cyclo(Pro-Leu) CAS 5654-86-4
| CAS No. | 5654-86-4 |
| Molecular Formula | C11H18N2O2 |
| Molecular Weight | 210.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Cyclo(Pro-Leu) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Cyclo(Pro-Leu) (CAS 5654-86-4), molecular formula C11H18N2O2 and molecular weight 210.27 g/mol, is a CATO reference standard with documented purity and traceability.
Cyclo(Pro-Leu) (C11H18N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C11H18N2O2 |
| Molecular Weight | 210.27 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 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Cyclo Standards
- Cyclo(-D-Leu-D-Pro) (G-1755.0250) (CAS 274680-11-4)
- Cyclo-L-prolyl-D-leucine (CAS 36238-67-2)
- Cyclo(-Leu-Pro) (CAS 2873-36-1)
- Cyclo(Ile-Pro) (CAS 57089-60-8)
- Cyclo(-Ala-His) (CAS 54300-25-3)
- Cyclo(-Gly-Phe) (CAS 10125-07-2)
- 4-cycloÂhexyl-3-hydroxy-acetÂophenone (CAS 73898-21-2)
- Cyclo(Tyr-Gly) (CAS 5625-49-0)
Recommended Standards
- Jasmonic acid (CAS 6894-38-8)
- 3,3＇-Dithiodipropionic Acid (CAS 1119-62-6)
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- (4-Acetylphenyl)phenylmethane (CAS 782-92-3)
- N-(2-Chlorobenzylidene)-4-methylbenzenesulfonamide (CAS 150552-84-4)
- 2-Amino-4-methyl-5-phenyl-1H-pyrrole-3-carbonitrile (CAS 61404-76-0)
- 4,6-Dimethyl-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-amine (CAS 2377611-40-8)
- 6-aminopyridazine-3-sulfonamide (CAS 930599-68-1)
- Tubulysin A (CAS 205304-86-5)
- 5-(Tert-butoxy)pentanoic acid (CAS 1039852-53-3)
- 1-(Cyclohex-2-en-1-yl)quinazolin-4(1H)-one (CAS 28751-75-9)
- 4-Methoxy-2-methylpyrimidine-5-carbonitrile (CAS 2006-00-0)
- Benzo[d][1,3]dioxol-5-ylhydrazine hydrochloride (CAS 40483-63-4)
- Peptide T (CAS 106362-32-7)
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