FROM MILLIGRAMS TO GRAMS — CUSTOM PURIFICATION CRO SOLUTIONS

Preparative HPLC Purification CRO Services

Custom preparative HPLC purification CRO services for research compounds, pharmaceutical impurities, reference materials, and complex chemical mixtures. From initial feasibility assessment to method development, isolation, and analytical characterization, HIPSOUL helps support your purification projects.

  • Targeted High-Purity IsolationProject-defined purity goals
  • Flexible Project ScaleDiscussed per sample & goal
  • Custom Method DevelopmentChromatographic optimization
  • Analytical CharacterizationAs agreed for the project
Preparative HPLC Purification CRO Services by HIPSOUL

Common Challenges in Compound Purification

Purifying target compounds from complex mixtures can be challenging, especially when high purity, limited sample availability, or difficult-to-separate impurities are involved.

Complex Mixtures

Closely related compounds, impurities, and isomers can be difficult to separate using conventional purification methods.

Insufficient Purity

Residual impurities may interfere with analytical testing, structural characterization, and downstream research.

Limited Sample Availability

Small sample quantities require careful method selection and efficient purification strategies.

Time & Resource Constraints

Method development, purification optimization, and analytical verification can require significant laboratory resources.

Our Preparative HPLC CRO Services

Explore customized preparative HPLC CRO separation and purification services designed to support compound isolation, pharmaceutical research, and analytical reference material preparation.

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Compound Purification

Compound Purification

Purification of target compounds from synthetic reactions, complex mixtures, and research samples.

Pharmaceutical Impurity Isolation

Pharmaceutical Impurity Isolation

Isolation of known or unknown pharmaceutical impurities, degradation products, and process-related compounds for research and characterization.

Reference Standard Preparation

Reference Standard Preparation

Preparation and purification of research reference compounds and isolated impurity materials, subject to analytical characterization and project requirements.

Isomer Separation

Isomer Separation

Method evaluation and separation of suitable structural, positional, geometric, or stereochemical isomers.

Method Development & Scale-Up

Method Development & Scale-Up

Development and optimization of chromatographic separation conditions, with feasibility assessment for transfer to preparative purification.

Custom Purification Projects

Custom Purification Projects

Tailored purification solutions for specialized compounds, difficult mixtures, and project-specific analytical requirements.

Compounds We Can Purify

Explore representative compound classes and purification targets relevant to pharmaceutical research, drug discovery, natural products, and specialty chemical applications. Specific purification feasibility depends on compound properties, sample composition, target purity, and required quantity.

Representative research targets for website browsing. Individual purification feasibility requires laboratory assessment. Not a verified project success list.

Pharmaceutical Impurities

Representative drug-related impurities and related materials commonly submitted for preparative HPLC feasibility review, including degradation products, process-related species, isomers, metabolites, and genotoxic alerts that require careful chromatographic separation before isolation.

Typical separation needs

  • Impurity enrichment from API matrix
  • Diastereomer and regioisomer resolution
  • Low-level PGI isolation for reference use
  • Forced-degradation peak tracking
Pharmaceutical analysis laboratory preparative purification context

Degradation Impurities

Stress-induced or shelf-life-related species formed from hydrolysis, oxidation, photolysis, or thermal exposure of drug substances and formulations.

  • Hydrolysis-related impurity class (ester APIs)
  • Oxidation-related impurity class (phenolic APIs)
  • Photodegradation impurity class (UV-sensitive drugs)
  • Thermal degradation impurity class
  • 4-Aminophenol CAS 123-30-8
  • N-Oxide degradant class (tertiary amine APIs)
  • Ring-opened lactam degradant class
  • Dehydration impurity class (alcohol-containing APIs)

Feasibility Assessment Required

Process-Related Impurities

Residual reagents, by-products, and synthetic intermediates carried into API from manufacturing routes, crystallization, or work-up steps.

  • Residual solvent class (Class 2/3 ICH)
  • Unreacted starting material class
  • Side-reaction dimer impurity class
  • Catalyst-derived impurity class (Pd/Li residues as organics)
  • Recrystallization mother-liquor impurity class
  • Protecting-group cleavage by-product class
  • Salt-form counter-ion exchange residual class
  • Polymorphic conversion trace impurity class

Feasibility Assessment Required

Isomeric Impurities

Enantiomers, diastereomers, geometric isomers, and atropisomers that must be resolved to support specification setting or reference isolation.

  • Enantiomeric impurity class (chiral API)
  • Diastereomeric impurity class
  • Geometric isomer impurity class (E/Z)
  • Atropisomer-related impurity class
  • Racemic trace enrichment (single enantiomer API)
  • Axial chirality impurity class
  • Conformational isomer envelope class

Feasibility Assessment Required

Drug Metabolites

Human or preclinical metabolites used as reference standards, including phase I and phase II conjugates requiring prep-scale isolation.

  • Glucuronide metabolite class
  • Sulfate conjugate metabolite class
  • N-Dealkylated metabolite class
  • Hydroxylated metabolite class (aromatic/aliphatic)
  • Acyl glucuronide reactive metabolite class
  • Phase II glutathione conjugate class
  • Oxidative deamination metabolite class

Feasibility Assessment Required

Potential Genotoxic Impurities

Alert structures and ICH M7-listed classes requiring trace enrichment; prep feasibility depends on stability, level, and matrix.

  • N-Nitrosamine impurity class
  • N-Nitrosodimethylamine CAS 62-75-9
  • Alkyl halide reactive intermediate class
  • Hydrazine CAS 302-01-2
  • Aromatic amine alert class
  • Aldehyde genotoxic alert class
  • Epoxide intermediate impurity class
  • Methylating agent residual class

Feasibility Assessment Required

API Intermediates

Penultimate and late-stage synthetic intermediates submitted for prep purification prior to final coupling or crystallization.

  • Penultimate amide coupling intermediate class
  • Boc-protected intermediate class
  • Benzyl-protected intermediate class
  • Heterocyclic ring-closure intermediate class
  • Acid chloride activation intermediate class
  • Grignard or organometallic quench impurity class
  • Crystallization seed-related intermediate class

Feasibility Assessment Required

Isolated Impurity Reference Materials

Targeted isolation of named or numbered impurity peaks for qualification, forced-degradation studies, and regulatory reference stocks.

  • Forced-degradation peak isolate (unnamed)
  • Pharmacopeial impurity peak enrichment class
  • Unknown impurity >0.1% enrichment class
  • Co-eluting impurity pair separation class
  • Stability-indicating impurity reference class
  • Tablet excipient interference impurity class

Feasibility Assessment Required

Other Drug-Related Compounds

Related substances, counter-ions, solvates, and drug-linker components outside standard impurity taxonomies but commonly purified prep-scale.

  • Related substance RRT cluster class
  • Counter-ion exchange variant class
  • Solvate/hydrate related substance class
  • PROTAC linker-payload intermediate class
  • ADC small-molecule payload class
  • Prodrug cleavage product class
  • Fixed-dose combination component cross-impurity class

Feasibility Assessment Required

Can’t Find Your Target Compound?

Tell us your target compound name, CAS number, sample composition, desired purity, and required quantity. Our technical team can review your requirements and assess the feasibility of a customized purification approach.

Request a Feasibility Assessment →

Laboratory Capabilities

Our purification workflow combines chromatographic method development, preparative separation, and analytical evaluation to support customized research requirements.

Preparative HPLC SystemsProject-matched instrument setup
Purification ScaleDiscussed from sample availability
Purity EvaluationAgreed analytical criteria
Analytical CharacterizationAs defined in project scope
HIPSOUL supports this path with published column and consumable ranges

Technical capability checklist

Instrument brands, column inventory, loading ranges, and detection methods are confirmed during project review. The items below describe the capability areas discussed with clients—not a published equipment inventory.

  • Preparative HPLC purification workflow design
  • Column and stationary-phase selection support, including preparative HPLC columns
  • Method development and scale-transfer assessment
  • Fraction collection strategy aligned to the target peak
  • Analytical purity evaluation using project-agreed methods
  • Optional complementary characterization via internal or partnered techniques when required
  • Documentation package defined in the project agreement
  • Related testing routes on Analytical Services and Analytical CRO Services

Representative Purification Projects

Explore how customized chromatographic approaches can address challenging separation and purification requirements.

INTERNAL DRAFT: Case metrics and chromatograms await laboratory confirmation. Do not treat the cards below as published project results.

API Impurity Isolation

Compound class: Pharmaceutical impurity

Challenge: Enrich a low-level impurity from an API matrix for characterization.

Approach: Confirm analytical resolution, then evaluate preparative loading and fraction cutting.

Starting purity
Pending lab data
Final purity
Pending lab data
Purified quantity
Pending lab data
Application
Research / characterization

Natural Product Fractionation

Compound class: Natural product

Challenge: Separate a target constituent from a complex plant-derived mixture.

Approach: Screen selectivity, then transfer a workable analytical method toward preparative isolation.

Starting purity
Pending lab data
Final purity
Pending lab data
Purified quantity
Pending lab data
Application
Research isolation

Isomer Separation Study

Compound class: Isomeric mixture

Challenge: Resolve closely related isomers when conventional purification is insufficient.

Approach: Evaluate phase and mobile-phase options before discussing preparative collection.

Starting purity
Pending lab data
Final purity
Pending lab data
Purified quantity
Pending lab data
Application
Method feasibility

Our Purification Service Workflow

  1. 01

    Project Evaluation

    Review target compound information, sample properties, purity goals, and project requirements.

  2. 02

    Feasibility Study

    Evaluate suitable chromatographic conditions and initial separation feasibility.

  3. 03

    Method Development

    Optimize separation parameters, mobile phases, columns, and collection conditions.

  4. 04

    Preparative Purification

    Perform compound isolation and purification using an appropriate preparative method.

  5. 05

    Analysis & Quality Review

    Evaluate the purified material using the analytical methods agreed upon for the project.

  6. 06

    Delivery

    Provide purified material and agreed analytical documentation.

What You Receive

Purified Compound

Isolated material prepared according to the agreed project scope and target specifications.

Analytical Report

Analytical results and supporting documentation as specified in the project agreement.

Chromatograms

Relevant chromatographic data documenting the separation and analytical evaluation.

Method Information

Agreed chromatographic conditions and method details where applicable.

Technical Support

Project communication and technical consultation regarding the purification results.

Frequently Asked Questions

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What types of compounds can you purify?

We discuss purification for research compounds, pharmaceutical impurities, selected natural products, peptides where suitable, and specialty chemicals. Acceptance depends on solubility, stability, matrix complexity, target purity, and available sample quantity. The catalog on this page shows representative research targets, not a verified success list for every entry.

What is preparative HPLC purification?

Preparative HPLC purification CRO work uses liquid chromatography at a larger loading scale so a target compound can be isolated and collected, rather than only measured. A workable analytical separation usually comes first. Column hardware options are described on our Preparative HPLC technology and prep column pages.

Can you isolate pharmaceutical impurities?

Pharmaceutical impurity isolation can be evaluated when the impurity is chromatographically resolvable and enough sample is available for the intended characterization goal. Unknown or low-level impurities may need method development before preparative collection is practical.

What sample quantity is required?

Required sample quantity depends on target purity, impurity level, recovery expectations, and the analytical work planned after isolation. Share approximate available mass during the inquiry so the team can assess whether a preparative approach is realistic.

What purity levels can you achieve?

Achievable purity depends on starting composition, selectivity, and the agreed specification. We do not publish a single unconditional purity guarantee. Target purity is defined per project after feasibility review.

Can you separate closely related isomers?

Isomer separation is considered when analytical scouting shows adequate selectivity. Structural, positional, geometric, or stereochemical isomers may require specialized phases or conditions. Feasibility is confirmed before scale-up.

Do you provide purification method development?

Yes. Method development and optimization can be included when existing conditions are incomplete or when transfer from analytical to preparative scale needs evaluation. Scope is agreed before laboratory work begins.

Can you handle milligram- or gram-scale projects?

Project scale is reviewed case by case based on sample availability, solubility, column loading, and the amount of purified material requested. Milligram- and gram-oriented requests can be discussed when the chemistry and method support that load.

What analytical documentation is available?

Documentation follows the project agreement and may include chromatograms, purity results, and method details where applicable. Additional characterization techniques are arranged only when required and confirmed for that project.

How can I request a purification quotation?

Use the inquiry form on this page or contact [email protected]. Include compound name or CAS, sample composition, available quantity, target purity, and any existing method notes to speed up review.

How long does a purification project take?

Timelines vary with method readiness, mixture complexity, and required analytical work. A schedule is confirmed only after feasibility review and agreement on scope.

Can you sign a confidentiality agreement?

A confidentiality agreement can be discussed before detailed sample information or proprietary structures are shared. Contact the team to start that process.

READY TO PURIFY YOUR COMPOUND?

Get a Custom Purification CRO Solution

Share your target compound information, sample details, and purification CRO project requirements. Our team will review your request and help identify a suitable next step.

Submit Purification Inquiry

Include compound name, CAS number if available, sample quantity, target purity, required purified quantity, and a short project description. For chromatograms or method files, email [email protected].

Purification Sample Inquiry