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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

2-Isopropylphenol | CAS 88-69-7

An ortho-substituted alkylphenol for phenolic building-block and aroma-chemical evaluation, with a free hydroxyl group beside an isopropyl substituent and a procurement focus on positional purity and sensory consistency.

CAS88-69-7
Molecular formulaC9H12O
Molecular weight136.19 g/mol

Product overview

The isopropyl group occupies one position directly beside the phenolic hydroxyl, leaving the other ortho position open. This mono-isopropyl structure distinguishes the material from diisopropylphenols and from the meta and para isomers. JECFA records it as a phenolic aroma substance, while synthesis grades are identified by spectroscopic and chromatographic methods. A useful purchasing specification separates isomer identity, organic purity and appearance; sensory evaluation may be relevant when the intended project involves aroma. Confirm the requested grade and destination-specific documentation as part of that project.

Chemical identity

Chemical name
2-Isopropylphenol
CAS number
88-69-7
Molecular formula
C9H12O
Molecular weight
136.19 g/mol

Application context

Aroma work with 2-isopropylphenol focuses on its phenolic character, evaluated in the intended formulation. For synthetic projects, the free hydroxyl and ortho isopropyl arrangement define the fragment being introduced. Material intended for either use should be qualified against the actual analytical and formulation needs. Other alkylphenols can affect both chromatographic composition and sensory profile, so the method should resolve relevant positional isomers. Colour observations should include sample age and handling history, particularly when comparing batches.

Chemistry and synthetic role

A phenolic OH and one adjacent isopropyl group form an unsymmetrical alkyl-substituted aromatic scaffold.

Quality review

Separate alkylphenol isomers

Use GC with suitable resolution alongside structure identification.

Define colour assessment

Agree the measurement or visual comparison conditions for the received material.

Match aroma qualification

For aroma work, agree sensory evaluation and required grade documentation.

Preparing a specification

State the ortho isomer, GC method, related alkylphenol limits and colour criteria; include sensory and grade documentation needs when purchasing for aroma development.

Packaging and storage

Packaging and net weight are agreed for the selected grade, order quantity and destination. Check the actual supplier SDS and label for storage and transport requirements.

Documentation

Request a batch COA, SDS and the analytical methods for the acceptance criteria below. Confirm which supporting chromatograms and identity data are available from the selected manufacturer.

Procurement questions

Is this propofol?

No. Propofol has two isopropyl groups; this molecule has one.

Why record sample handling?

Air exposure and observation conditions can complicate meaningful colour comparisons.

Does a chemical assay establish sensory suitability?

No. Evaluate the specific lot in the intended formulation.

Technical sources
  1. PubChem CID 6943NCBI / PubChem
  2. 2-Isopropylphenol — flavouring specificationFAO / JECFA
  3. 2-Isopropylphenol I0173TCI