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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

1-[(3,3-Diphenylpropyl)(methyl)amino]-2-methylpropan-2-ol | CAS 100442-33-9

A tertiary amino alcohol supplying the diphenylpropyl-containing ester side chain in published lercanidipine chemistry, where free-base identity and the distinction between assay and chromatographic purity guide material qualification.

CAS100442-33-9
Molecular formulaC20H27NO
Molecular weight297.4 g/mol

Product overview

The diphenylpropyl side chain combines a tertiary amine with a tertiary alcohol for lercanidipine intermediate chemistry. Neither the alcohol carbon with two methyl groups nor the diphenyl carbon is a stereocentre. Qualification should establish the unesterified free base and distinguish chemical assay from chromatographic purity.

Chemical identity

Chemical name
1-[(3,3-Diphenylpropyl)(methyl)amino]-2-methylpropan-2-ol
CAS number
100442-33-9
Molecular formula
C20H27NO
Molecular weight
297.4 g/mol

Application context

Reported lercanidipine synthesis converts this amino alcohol into an aminoethyl acetoacetate fragment that subsequently participates in dihydropyridine-ring construction. It supplies the diphenylpropyl-containing side chain. For the esterification stage, compare free-base content, water and relevant amine-related substances against the qualified process input, using separate assay and chromatographic results.

Chemistry and synthetic role

The molecule combines a basic tertiary nitrogen with a sterically substituted alcohol. Ester formation changes the alcohol-derived part of the side chain; it does not make the precursor and the ester interchangeable. Structural identification should establish both functional groups and the diphenylpropyl connection.

Quality review

Confirm the unesterified free base

Distinguish this amino alcohol from acid-addition salts and esterified lercanidipine side-chain intermediates using the agreed identity tests.

Separate assay from peak-area purity

Agree the assay basis and the chromatographic method. Titration of a basic group cannot alone distinguish all related organic compounds.

Review esterification inputs

Assess water, residual solvents and relevant amine-related substances against the intended next step; limits require process-specific agreement.

Preparing a specification

Specify CAS 100442-33-9, the unesterified free-base structure, assay basis and chromatographic method. Identify related substances relevant to the selected lercanidipine route and state any process-supported water or residual-solvent criteria.

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 identity data capable of confirming the amino alcohol, the assay method and a representative chromatogram. Confirm whether the selected producer can supply batch COA, SDS and information explaining the reporting basis.

Procurement questions

Is this lercanidipine hydrochloride?

No. It is a distinct amino alcohol used in published side-chain chemistry; the drug and its hydrochloride have different structures.

Which structural features determine the chiral-testing requirements?

The alcohol carbon carries two methyl groups, and the diphenyl carbon carries two identical phenyl groups. Neither is a stereocentre; qualification focuses on free-base identity, assay and related substances.

Can a titration value replace chromatographic purity?

No. Review the two measurements according to their methods, specificity and reporting basis.

Technical sources
  1. PubChem CID 10851563: properties and CAS synonym crosscheckNCBI / PubChem
  2. 1-[(3,3-Diphenylpropyl)(methyl)amino]-2-methylpropan-2-ol — D4713Tokyo Chemical Industry
  3. US20100104649A1: Lercanidipine hydrochloride polymorphs and preparation of an aminoethyl acetoacetatePatent publication / Google Patents