INDUSTRY COMPONENT

Solvate/Hydrate

Solvate/Hydrate is a crystalline solid component in pharmaceutical manufacturing where solvent molecules are incorporated into the crystal lattice structure of an Active Pharmaceutical Ingredient (API).

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Component Specifications

Definition
A solvate/hydrate is a solid-state form of an Active Pharmaceutical Ingredient where solvent molecules (commonly water for hydrates, or organic solvents like ethanol or methanol for solvates) are stoichiometrically or non-stoichiometrically bound within the crystal lattice. This component is critical in pharmaceutical-grade API production as it affects solubility, stability, bioavailability, and processing characteristics. The formation occurs during crystallization processes where API molecules co-crystallize with solvent molecules, creating distinct crystalline phases with unique physicochemical properties.
Working Principle
The working principle involves controlled crystallization where API molecules form crystalline structures that incorporate solvent molecules into their lattice through hydrogen bonding, van der Waals forces, or coordination bonds. During pharmaceutical manufacturing, specific temperature, pressure, and solvent conditions are maintained to produce the desired solvate/hydrate form with consistent polymorphic characteristics. The component's functionality depends on maintaining the crystalline integrity during processing, storage, and formulation.
Materials
Pharmaceutical-grade crystalline solids composed of API molecules (typically organic compounds with molecular weights 200-1000 Da) and incorporated solvent molecules (water for hydrates: H₂O; organic solvents like ethanol C₂H₅OH, methanol CH₃OH, acetone C₃H₆O, or dichloromethane CH₂Cl₂ for solvates). Purity requirements: ≥99.5% chemical purity, ≤0.1% residual solvents (per ICH Q3C), particle size distribution: D90 < 200μm.
Technical Parameters
  • Flowability Carr Index: 15-25%
  • Bulk Density 0.3-0.6 g/cm³
  • Melting Point 150-300°C (decomposition may occur)
  • Crystal System Monoclinic, Triclinic, or Orthorhombic
  • Hygroscopicity Low to Moderate (for hydrates)
  • Compressibility 2-10%
  • Solvent Content 0.5-20% w/w
  • Specific Surface Area 0.5-5 m²/g
  • Particle Size Distribution D10: 10-50μm, D50: 50-150μm, D90: 150-250μm
Standards
ISO 9001, ISO 13485, ICH Q6A, ICH Q3C, USP <1151>, EP 5.9, GMP Guidelines

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Solvate/Hydrate.

pharmaceutical solvate API hydrate crystalline forms pharmaceutical manufacturing drug substance polymorphism crystallization pharmaceutical processing solid-state chemistry drug formulation Solvate/Hydrate Solvate/Hydrate in Chemical Manufacturing

Parent Products

This component is used in the following industrial products

Pharmaceutical-Grade Active Pharmaceutical Ingredient (API)

Pure chemical substance responsible for therapeutic effect in pharmaceutical formulations

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Engineering Analysis

Risks & Mitigation
  • Polymorphic transformation during processing
  • Solvent loss leading to form change
  • Hygroscopicity causing stability issues
  • Batch-to-batch variability in crystal form
  • Residual solvent contamination
  • Reduced bioavailability if incorrect form
FMEA Triads
Trigger: Inadequate humidity control during storage
Failure: Hydrate dehydration to anhydrous form
Mitigation: Implement controlled humidity storage (30-60% RH), use desiccant-containing packaging, monitor with humidity sensors
Trigger: Improper crystallization conditions
Failure: Formation of undesired polymorphic forms
Mitigation: Precise temperature control (±0.5°C), controlled cooling rates, in-process monitoring with PAT tools
Trigger: Solvent contamination from previous batches
Failure: Cross-contamination leading to mixed solvate forms
Mitigation: Implement dedicated equipment, rigorous cleaning validation, solvent purity verification

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Crystal form purity ≥98%, Solvent content ±2% of target, Particle size D90 ±15%, Residual solvents ≤ICH Class 2 limits
Test Method
X-ray diffraction for crystal form identification, Karl Fischer titration for water content, GC for residual solvents, Laser diffraction for particle size, DSC for thermal properties

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Seeding Port
A precision port for introducing seed crystals into batch crystallization systems to initiate controlled crystal growth.
Sight Glass
A transparent window for visual inspection of fluid flow and crystallization processes in industrial systems.

Frequently Asked Questions

What is the difference between a solvate and a hydrate?

A hydrate specifically contains water molecules in its crystal lattice, while a solvate contains other solvent molecules (ethanol, methanol, acetone, etc.). Hydrates are a subset of solvates where the solvent is water.

Why are solvate/hydrate forms important in pharmaceutical manufacturing?

They significantly impact drug product performance including solubility, dissolution rate, stability, bioavailability, and manufacturability. Different solvate/hydrate forms can have dramatically different therapeutic properties and shelf life.

How are solvate/hydrate forms characterized and controlled?

Through techniques like X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), infrared spectroscopy (IR), and solid-state NMR. Manufacturing controls include strict temperature, humidity, and solvent composition monitoring during crystallization.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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