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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

3-Phenoxybenzyl alcohol | CAS 13826-35-2

The primary benzyl-alcohol fragment used in published permethrin ester chemistry also appears as a permethrin transformation product, linking synthesis qualification with a separate need for analytical-reference evidence in degradation studies.

CAS13826-35-2
Molecular formulaC13H12O2
Molecular weight200.23 g/mol

Product overview

The meta phenoxy linkage and the primary CH2OH group define this two-ring aromatic alcohol. It is not 3-phenoxybenzaldehyde, and it does not contain the alpha-cyano group found in certain other pyrethroid alcohol fragments. Those distinctions are important because related names can obscure different functionalities at the benzylic carbon. Published permethrin preparation uses 3-phenoxybenzyl alcohol as the alcohol component of the ester, while environmental databases also identify it as a transformation product. A purchasing enquiry should indicate which context applies. For synthesis, relevant questions include positional identity, usable alcohol content and route-appropriate water control; for analytical work, assigned content and traceability need separate qualification rather than an assumption of reference-standard status.

Chemical identity

Chemical name
3-Phenoxybenzyl alcohol
CAS number
13826-35-2
Molecular formula
C13H12O2
Molecular weight
200.23 g/mol

Application context

Permethrin synthesis joins this meta-phenoxybenzyl alcohol to a cyclopropanecarboxylic-acid-derived component. The acid fragment supplies the cyclopropane stereochemistry; this primary alcohol is achiral. It is also a permethrin transformation product relevant to environmental analysis. Specify alcohol content and route-relevant aldehyde, acid or positional-isomer controls for synthesis. For analytical use, define assigned content, uncertainty and stability evidence appropriate to the method.

Chemistry and synthetic role

The primary alcohol forms the ester bond in the cited synthesis. The phenoxy group is meta to CH2OH; moving it to another ring position or adding alpha-cyano functionality creates a different material.

Quality review

Confirm meta phenoxy identity

Verify the 3-phenoxy arrangement rather than accepting a generic phenoxybenzyl alcohol designation.

Distinguish alcohol from oxidation relatives

Review a method that addresses relevant benzaldehyde or benzoic-acid relatives where justified by source or storage history.

Match content and water to ester formation

Agree quantitative alcohol assay and water criteria for the receiving acylation process; chromatographic area alone may not establish chargeable content.

Preparing a specification

Specify 3-phenoxybenzyl alcohol, CAS 13826-35-2, intended synthesis or analytical use, quantitative alcohol content and relevant positional or oxidation-related substances. For ester formation, agree water criteria; for reference use, agree content assignment and traceability.

Packaging and storage

Confirm packaging format, net weight and transport arrangements for the selected grade, order quantity and destination. Request the applicable SDS and label to establish storage and handling conditions.

Documentation

Request the proposed specification, batch COA and current SDS. Confirm availability of the identity data and analytical methods relevant to the checks above; documents depend on the selected manufacturer and grade.

Procurement questions

Is this an alpha-cyano pyrethroid alcohol?

No. This CAS identifies the primary CH2OH compound without an alpha-cyano group.

Does the alcohol need a cis/trans ratio?

It has no such intrinsic cyclopropane ratio; that feature belongs to the acid-derived portion of permethrin.

What should an analytical-reference enquiry include?

State the target method and request assigned alcohol content, uncertainty, traceability and stability information appropriate to the analysis.

Technical sources
  1. PubChem CID 26295 — identity property recordNCBI / PubChem
  2. US10647655B2 — Method for the synthesis of permethrinUnited States Patent and Trademark Office
  3. Permethrin — related substancesUS Environmental Protection Agency / CompTox
  4. Permethrin pathwayEawag Biocatalysis/Biodegradation Database