CMS-121 (CAS 1353224-53-9) is supplied by Rexar as a research-grade chemical reference material for analytical chemistry, structural verification and laboratory comparison workflows. This compound is provided exclusively for controlled research environments requiring confirmed chemical identity, reproducible analytical behaviour and consistent documentation standards.
CMS-121 is available directly through the Rexar webshop and supplied in sealed laboratory packaging for distribution within the European Union.
Rexar Technical Compound Datasheet (PDF)
CMS-121 is a synthetic small-molecule compound structurally derived from curcumin-related frameworks and modified to enhance chemical stability and analytical robustness. The molecule incorporates an aromatic system combined with heterocyclic and carbonyl functionalities, producing a defined molecular architecture suitable for analytical reference applications.
The structure includes conjugated aromatic regions and electron-withdrawing substituents that influence electronic distribution and spectroscopic behaviour. These structural elements contribute to reproducible chromatographic retention characteristics and identifiable spectroscopic signatures.
CMS-121 contains several functional groups relevant to laboratory analysis:
The carbonyl groups typically produce characteristic absorption bands in infrared spectroscopy. Aromatic domains support π→π* transitions detectable in UV-visible spectroscopy. Fluorine substitution may influence NMR splitting patterns and chemical shift distribution.
The molecular formula C18H16FNO3 corresponds to a structure balancing hydrophobic aromatic regions with polar functional groups. This distribution influences partition behaviour, chromatographic retention and interaction with stationary phases in reversed-phase systems.
Electron-withdrawing substituents may alter electron density across the aromatic framework, subtly affecting UV absorption maxima and NMR chemical shift values.
NMR Spectroscopy: Proton and carbon NMR typically reveal aromatic proton signals, carbonyl carbons and aliphatic or heterocyclic signals consistent with the molecular framework. Fluorine substitution may introduce characteristic coupling patterns in ¹H and ¹³C spectra.
Infrared Spectroscopy: Carbonyl stretching vibrations appear as strong absorption bands. Aromatic C–H and C=C stretching frequencies support structural confirmation.
UV-Visible Spectroscopy: Conjugated aromatic systems enable UV detection in chromatographic methods using UV or PDA detectors.
CMS-121 exhibits defined retention behaviour in reversed-phase chromatographic systems. Hydrophobic aromatic domains interact with non-polar stationary phases, while polar carbonyl functionalities contribute to dipole interactions.
Retention time may vary depending on solvent composition, gradient profile and mobile phase polarity. Under controlled analytical conditions, reproducible peak characteristics can be achieved.
Mass spectrometry confirms a molecular weight of 313.33 g/mol. Fragmentation pathways may involve cleavage adjacent to carbonyl groups or aromatic ring systems, supporting structural verification during analytical workflows.
CMS-121 is typically encountered as a fine powder suitable for laboratory handling. Organic aromatic compounds with defined substitution patterns often demonstrate stable solid-state behaviour when stored under controlled environmental conditions.
International chemical databases encode CMS-121 using canonical SMILES strings and InChI identifiers. These machine-readable formats support laboratory information management systems (LIMS), digital inventory control and documentation workflows.
As a research-grade chemical reference material, CMS-121 is supplied in sealed laboratory packaging to maintain integrity during transport and storage. Clear batch identification supports traceability and internal documentation procedures.
What is the CAS number of CMS-121?
The CAS number of CMS-121 is 1353224-53-9.
In which form is CMS-121 supplied?
This product is supplied as a laboratory-grade powder in sealed packaging.
Is this product intended for human or animal use?
No. This material is supplied exclusively as a laboratory reference compound.
Is CMS-121 available for shipment within the EU?
Yes. Orders are supplied through the Rexar webshop in sealed laboratory packaging.
This product is intended for laboratory research use only. It is not intended for human or animal consumption, nor for medical, diagnostic or therapeutic applications. This compound is not intended to diagnose, treat, cure or prevent any disease.
| Intended use: | Laboratory research and analytical reference purposes only |
| Application area: | Analytical chemistry, reference comparison and method development |
| End user: | Professional users in controlled research environments |
| Regulatory classification: | Chemical reference material |
