Bemethyl HBr is supplied by Rexar as a research-grade chemical reference material for analytical chemistry, compound identification and laboratory comparison workflows. This benzimidazole-derived thioether hydrobromide is provided exclusively for controlled research environments requiring verified chemical identity, consistent structural documentation and reproducible analytical comparison.
Research-grade material distributed by Rexar within the European Union.
Bemethyl HBr (CAS 109628-14-0) is supplied in sealed laboratory packaging to support traceability, storage integrity and laboratory handling procedures.
Rexar Technical Compound Datasheet (PDF)
Molecular structure data and selected physicochemical properties can be consulted via: Bemethyl HBr on PubChem
Bemethyl HBr is the hydrobromide salt of a sulfur-containing benzimidazole derivative with the molecular formula C9H11BrN2S. Its molecular framework combines a fused benzimidazole heterocycle with an ethylthio substituent and an associated hydrobromide component.
The compound is structurally based on a bicyclic benzimidazole system consisting of a benzene ring fused to a nitrogen-containing five-membered imidazole ring. An ethylthio group is attached to the heterocyclic framework, introducing a sulfur-containing substituent distinct from the aromatic ring system.
The defining structural feature of Bemethyl HBr is its benzimidazole core, a fused bicyclic heteroaromatic system containing two nitrogen atoms. The fusion of the benzene and imidazole rings creates a relatively rigid and conjugated molecular framework.
The benzimidazole system provides chemically distinct aromatic carbon and nitrogen environments that can contribute characteristic signals during chromatographic and spectroscopic analysis.
Bemethyl HBr contains a fused bicyclic heterocyclic framework in which a six-membered benzene ring shares two adjacent carbon atoms with a five-membered nitrogen-containing imidazole ring.
This fused architecture produces a conjugated structural system that can be characterised through chromatographic, mass-spectrometric, infrared and nuclear magnetic resonance techniques.
The molecular formula C9H11BrN2S reflects a structure containing carbon, hydrogen, bromine, nitrogen and sulfur distributed across several chemically distinct structural environments.
The combination of aromatic, heterocyclic and sulfur-containing functionality provides multiple structural features suitable for comparative analytical identification.
Bemethyl contains an ethylthio substituent in which sulfur forms the linkage between the benzimidazole framework and an ethyl group. This sulfur-containing functionality contributes a chemically distinct environment within the molecule.
The thioether group can influence molecular polarizability, chromatographic behaviour and mass-spectrometric fragmentation, while the ethyl portion provides characteristic aliphatic proton and carbon environments.
The benzimidazole framework contains two nitrogen atoms within the five-membered heterocyclic portion of the fused ring system. These nitrogen environments differ electronically from the carbon atoms of the fused benzene ring.
The presence of heterocyclic nitrogen contributes to protonation behaviour, hydrogen-bonding characteristics and interactions with polar chromatographic environments.
The ethylthio group provides a short aliphatic substituent attached to the heterocyclic core through sulfur. It contains chemically distinct methylene and methyl environments that can produce characteristic signals during proton and carbon NMR analysis.
This substituent also provides a structural marker that can assist in distinguishing Bemethyl from unsubstituted benzimidazole and other structurally related heterocyclic reference compounds.
Bemethyl HBr is supplied in hydrobromide salt form. The presence of the hydrobromide component distinguishes the material from the corresponding neutral parent structure and contributes to the overall molecular composition and molecular weight of the reference material.
Salt form should be considered when comparing molecular-weight data, mass-spectrometric observations, elemental composition and reference documentation.
The nitrogen-containing benzimidazole framework provides sites capable of participating in polar and hydrogen-bonding interactions. The ionic character associated with the hydrobromide form can additionally influence interactions in polar analytical environments.
These structural characteristics may affect solvation, crystal packing, chromatographic retention and sample preparation depending on the analytical system employed.
Bemethyl HBr combines a fused aromatic heterocycle with a sulfur-containing substituent and hydrobromide salt component. This produces a molecular structure containing both aromatic and polar structural regions.
The balance between the benzimidazole ring system, thioether functionality and salt form is relevant when evaluating solvent selection, chromatographic conditions and analytical sample preparation.
The fused benzimidazole core is relatively rigid, while the ethylthio substituent introduces limited rotational flexibility outside the aromatic heterocyclic system. The molecule therefore combines a conformationally constrained ring system with a short flexible substituent.
No defined stereogenic centre is present in the standard molecular representation, and the compound is represented without specified stereochemistry.
Under liquid chromatographic conditions, retention may be influenced by the aromatic benzimidazole framework, heterocyclic nitrogen atoms, sulfur-containing substituent and ionic characteristics associated with the hydrobromide form.
Retention time and peak shape may vary according to mobile-phase composition, pH, stationary-phase chemistry, temperature, ionic strength and sample concentration.
LC-based methods may be used for qualitative identity comparison, purity profiling and retention-time verification of Bemethyl HBr reference material.
Because structurally related benzimidazole compounds may display overlapping physicochemical characteristics, chromatographic optimisation can be useful when differentiating Bemethyl HBr from related heterocyclic reference compounds.
Bemethyl HBr has a molecular weight of approximately 259.17 g/mol for the hydrobromide composition. Mass-spectrometric interpretation should take the salt form into account, since ionisation conditions may predominantly reveal species associated with the organic Bemethyl component rather than an intact neutral salt assembly.
Characteristic molecular and fragment ions associated with the benzimidazole and ethylthio framework may support structural confirmation when compared with authenticated reference data.
Proton NMR analysis may show characteristic resonances associated with aromatic benzimidazole protons and the methylene and methyl environments of the ethylthio substituent.
Carbon NMR analysis may provide distinguishable signals corresponding to aromatic ring carbons, heterocyclic carbon environments and the aliphatic carbons of the ethyl group.
Infrared analysis may reveal absorption features associated with the benzimidazole heterocycle, aromatic C-H environments, aliphatic C-H bonds and sulfur-containing functionality.
The resulting infrared profile can provide supplementary structural information when compared with an authenticated reference spectrum obtained under equivalent analytical conditions.
The conjugated benzimidazole framework provides an aromatic chromophore that may support ultraviolet-based chromatographic detection. Suitable detection wavelengths should be selected according to measured absorbance characteristics and validated laboratory methods.
The fused aromatic heterocyclic system is an important contributor to the compound's UV absorption profile and can support analytical detection in appropriate chromatographic workflows.
Bemethyl HBr is supplied as a laboratory powder. Solid-state characteristics such as crystallinity, particle morphology, residual moisture and residual solvent content may depend on manufacturing, salt formation and purification procedures.
Analytical laboratories may use melting behaviour, powder analysis or spectroscopic comparison as supplementary identity indicators where appropriate.
Bemethyl HBr may serve as a qualitative reference compound in structural verification and comparative analytical workflows involving LC-MS, HPLC, NMR and infrared spectroscopy. Laboratory procedures may include retention-time comparison, molecular-weight confirmation and comparative spectral profiling.
Bemethyl HBr can be structurally classified as a sulfur-containing benzimidazole derivative supplied in hydrobromide salt form. Its framework combines a fused nitrogen-containing heteroaromatic system with an ethylthio substituent.
This combination provides defined structural markers for analytical differentiation from unsubstituted benzimidazole and other related heterocyclic compounds.
The benzimidazole core consists of a benzene ring fused to a five-membered nitrogen-containing heterocycle. This arrangement creates a conjugated bicyclic molecular framework containing chemically distinct aromatic and heterocyclic environments.
The fused ring system provides useful spectroscopic and chromatographic characteristics for analytical comparison and identity verification.
The sulfur-linked ethyl group represents a characteristic structural feature of Bemethyl. The sulfur atom connects the heterocyclic core to a two-carbon aliphatic group, creating distinct sulfur-adjacent and terminal methyl environments.
Analytical differentiation can therefore draw on both the aromatic benzimidazole signals and the characteristic features associated with the ethylthio substituent.
The fused benzene portion of the benzimidazole framework contains aromatic proton environments that may produce characteristic multiplet patterns during proton NMR analysis.
Their chemical shifts are influenced by the adjacent heterocyclic ring and the electronic distribution of the conjugated benzimidazole system.
The nitrogen-containing heterocyclic structure of Bemethyl is compatible with protonation, and the supplied hydrobromide form represents a protonated salt composition associated with bromide.
Mobile-phase pH and ionisation conditions can therefore affect chromatographic retention and mass-spectrometric response, particularly when comparing salt-form material with the corresponding organic component.
The molecular formula C9H11BrN2S contains one bromine atom associated with the hydrobromide composition, two nitrogen atoms within the benzimidazole framework and one sulfur atom within the ethylthio substituent.
Theoretical elemental composition may support identity verification when combined with mass spectrometry, spectroscopic analysis and appropriate reference documentation.
As a chemical reference material, Bemethyl HBr may be used for qualitative structural comparison, method development and analytical identity verification in laboratories examining benzimidazole derivatives, sulfur-containing heterocycles or related reference compounds.
Analytical reproducibility depends on consistent sample preparation, validated instrument parameters, suitable reference documentation and controlled storage conditions.
Each unit is supplied in sealed laboratory packaging designed to support material integrity during storage and transport. Batch identification labelling supports traceability and internal documentation within controlled research environments.
Packaging should remain closed when the material is not in use and should be protected from moisture, excessive heat and direct light.
What is the CAS number of Bemethyl HBr?
The CAS number used for Bemethyl HBr is 109628-14-0.
What is the PubChem CID of Bemethyl HBr?
The PubChem compound identifier is 9816609.
What is the molecular formula of Bemethyl HBr?
The molecular formula is C9H11BrN2S.
What is the molecular weight of Bemethyl HBr?
The molecular weight is approximately 259.17 g/mol.
What is another name for Bemethyl HBr?
Bemethyl HBr is also referred to as Bemitil hydrobromide or Bemethyl hydrobromide.
What type of chemical structure does Bemethyl contain?
Bemethyl contains a fused benzimidazole heterocyclic framework with an ethylthio substituent.
Is this the hydrobromide form?
Yes. This reference material is supplied as Bemethyl hydrobromide.
In which form is Bemethyl HBr supplied?
It is supplied as a laboratory powder in sealed packaging.
Is this product intended for human or animal use?
No. This material is supplied exclusively as a laboratory reference compound.
Disclaimer:
This product is supplied exclusively as a chemical reference material for laboratory and analytical purposes. Not for human or animal consumption. Not intended for food, supplement, cosmetic, medical, diagnostic or therapeutic use.
| 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 |
