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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene | CAS 461432-23-5

A halogenated diarylmethane providing the aryl portion in a published dapagliflozin route, with an aryl bromide reaction site and a separately retained chloro substituent that require precise positional identification.

CAS461432-23-5
Molecular formulaC15H14BrClO
Molecular weight325.63 g/mol

Product overview

A methylene bridge joins the two aromatic rings of this dapagliflozin building block. One ring carries aryl bromine and chlorine; the other has a para ethoxy group. The isolated fragment is achiral. Its qualification rests on positional identity and an impurity profile compatible with the intended aryl-fragment conversion.

Chemical identity

Chemical name
4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene
CAS number
461432-23-5
Molecular formula
C15H14BrClO
Molecular weight
325.63 g/mol

Application context

A reported dapagliflozin route combines this diarylmethane-derived aryl fragment with a protected gluconolactone component to build the carbon-linked sugar framework. The aryl bromide provides the conversion site while the chloro and ethoxy substituents define the retained aromatic portion. Match positional-isomer controls and water criteria to that aryl-fragment transformation.

Chemistry and synthetic role

The bromine and chlorine are covalent aryl substituents; the two rings are connected through a carbon–carbon methylene bridge. The ethoxy group is an aryl ether. These distinctions help separate this building block from side-chain halides or phenolic analogues with similar names.

Quality review

Confirm the two-ring substitution pattern

Use structure-sensitive identification for bromine, chlorine and ethoxy positions; the formula alone cannot exclude positional isomers.

Review the aryl-halide profile

Agree the relevant halogenated and aromatic related substances with the selected manufacturer, including method resolution and acceptance limits.

Align water control with use

Where the qualified aryl-fragment transformation requires it, agree a water method and limit with a process basis.

Resolve handling against the selected grade

Confirm storage, packaging and handling requirements for the selected grade using its current SDS.

Preparing a specification

Specify CAS and the complete aryl-bromide structure, including the chloro and para-ethoxy positions. Agree assay, positional-isomer and related-aromatic controls, adding water or solvent criteria only where justified by the planned transformation.

Packaging and storage

Agree packaging, net weight and transport arrangements for the selected grade, quantity and destination. Confirm storage and handling conditions using the current SDS for the proposed material.

Documentation

Request structural identification, the proposed chromatographic method and a representative impurity profile. Confirm availability of COA and the actual supplier’s current SDS, especially before agreeing packaging, storage or transport conditions.

Procurement questions

Is the bromine on a benzyl side chain?

No. Bromine is attached directly to an aromatic carbon; the methylene group joins the two rings.

Is this isolated aryl fragment chiral?

It is achiral. The protected sugar component is introduced separately in the dapagliflozin route; this fragment is qualified by its aromatic substitution pattern and related-substance profile.

Are the phenyl ethyl ether and ethoxybenzyl names equivalent?

They describe this same connectivity when all substituent positions match the verified structure.

How should storage conditions be agreed?

Use the current SDS and packaging requirements for the selected material when agreeing storage and transport.

Technical sources
  1. PubChem CID 9996449: properties and CAS synonym crosscheckNCBI / PubChem
  2. 4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene — B7018Tokyo Chemical Industry
  3. EP3497090A1: Novel processes for preparation of dapagliflozin or its solvates or co-crystalsPatent publication / Google Patents
  4. 4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene — Synthonix productSynthonix via Sigma-Aldrich partner catalogue