Cyclo(-Arg-Ala-Asp-D-Phe-Lys) CAS 756500-23-9
| CAS No. | 756500-23-9 |
| Molecular Formula | C28H43N9O7 |
| Molecular Weight | 617.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Cyclo(-Arg-Ala-Asp-D-Phe-Lys) (C28H43N9O7) is characterized by a nitrogen-containing heterocyclic scaffold, an amide 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies Cyclo(-Arg-Ala-Asp-D-Phe-Lys) (CAS 756500-23-9), a certified reference material (molecular formula C28H43N9O7, MW 617.70 g/mol) for analytical method development and quality control.
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.
CATO manufactures Cyclo(-Arg-Ala-Asp-D-Phe-Lys) 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.
Physical & Chemical Properties
| Molecular Formula | C28H43N9O7 |
| Molecular Weight | 617.70 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 9 |
Related Cyclo Standards
- Cyclo(-Arg-Gly-Asp-D-Tyr-Lys) (CAS 217099-14-4)
- Cyclo(-D-Glu-Ala-D-allo-Ile-Leu-D-Trp) (CAS 136553-74-7)
- Cyclo(-Arg-Gly-Asp-D-Phe-Lys) (CAS 161552-03-0)
- Cyclo[(αS,2S)-α-amino-η-oxo-2-oxiraneoctanoyl-L-phenylalanyl-L-phenylalanyl-(2R)-2-piperidinecarbonyl] (CAS 133155-89-2)
- Cyclo(-Arg-Ala-Asp-D-Tyr-Lys) (CAS 1193347-53-3)
- Cyclo(-Gly-Arg-Gly-Asp-Ser-Pro-Ala) (CAS 128857-77-2)
- Cyclo(-Arg-Ala-Asp-D-Phe-Val) (CAS 137813-36-6)
- Cyclo(-D-Ser-Pro-D-Val-Leu-D-Trp) (CAS 153982-38-8)
Recommended Standards
- (SP-5-41)-[1-[2,6-Bis(1-methylethyl)phenyl]-3,3-dimethyl-5-(1-methylethyl)-2-pyrrolidinylidene]dichloro[[2-(1-methylethoxy-κO)phenyl]methylene-κC]ruthenium (CAS 1459791-97-9)
- 8-(2-Fluorobenzyl)-6-(3-methoxyphenyl)-2-(4-methoxyphenyl)-7-methyl-3-((methyl(2-(pyridin-2-yl)ethyl)amino)methyl)imidazo[1,2-a]pyrimidin-5(8H)-one (CAS 485404-49-7)
- Fmoc-Tyr(malonyl-di-OtBu)-OH (CAS 168135-77-1)
- Intermediate material 100114 (CAS CATO-CIM-100114)
- 3-(4-Nitrophenyl)pyridine-2-carbonitrile (CAS 1352318-13-8)
- D-Methionine sodium salt (CAS 70961-46-5)
- Sodium 2-ethoxy-2-oxo-1-(phenylsulfonyl)ethan-1-ide (CAS 75850-40-7)
- 5-Bromo-2-(1,3-thiazol-4-yl)pyridine (CAS 1159820-13-9)
- 1-(3-chloro-4,4,4-trifluoro-2-phenylbut-2-enyl)piperidine (CAS 256529-21-2)
- (S)-4-chloro-1,2-epoxybutane (CAS 13067-79-3)
- 2-Bromo-4-cyano-6-iodobenzoic acid (CAS 1805248-39-8)
- 3-(Methylthio)pyridin-4-amine (CAS 1427523-25-8)
- 5-(Benzo[d][1,3]dioxol-5-yl)-3-methylpent-1-yn-3-ol (CAS 309283-92-9)
- Semaglutide impurity 43 (CAS CATO-C4X-222643)
Why CATO?
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