Active Pharmaceutical Ingredient (API): Purity ≥98.5%

Component Specifications

Definition

Active Pharmaceutical Ingredient (API) is the substance in a pharmaceutical drug that produces the intended pharmacological effect. In tablet manufacturing, APIs are combined with excipients through processes like granulation, blending, and compression to form the final dosage form. APIs must meet strict purity, potency, and stability standards as defined by pharmacopeias and regulatory agencies.

Working Principle

APIs work through specific biochemical interactions with biological targets (e.g., receptors, enzymes) to produce therapeutic effects. In tablet formulation, APIs are uniformly distributed within excipient matrices to ensure consistent dosage delivery upon ingestion and dissolution.

Materials

APIs are typically organic compounds (small molecules) or biologics (proteins, peptides) with defined chemical structures. Common materials include synthetic chemicals, plant extracts, or fermentation products. Specifications include chemical purity (>98-99.5%), particle size distribution (10-200 μm), polymorphism control, and moisture content (<0.5%).

Technical Parameters

Parameter	Typical range	Notes & selection driver
Purity	≥98.5%
Potency	95-105% of labeled amount
Stability	24-month shelf life under specified conditions
Solubility	Water-soluble or lipid-soluble as required
Bulk Density	0.4-0.8 g/cm³
Particle Size	D90 < 150 μm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ICH Q7, USP, EP, JP

Parent Products

This component is used in the following industrial products

Pharmaceutical Tablets

A pharmaceutical tablet is a solid dosage form produced by compressing a mixture of active pharmaceutical ingredients and excipients into a uniform shape and size.

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Engineering Analysis

Risks & Mitigation

Contamination with impurities
Polymorphism changes affecting bioavailability
Degradation during storage
Cross-contamination in manufacturing
Regulatory non-compliance

FMEA Triads

Trigger: Inadequate purification during synthesis
Failure: High impurity levels exceeding specifications
Mitigation: Implement multi-step purification processes and in-process controls

Trigger: Improper storage conditions
Failure: API degradation reducing potency
Mitigation: Maintain controlled temperature and humidity storage with monitoring

Trigger: Particle size variation
Failure: Inconsistent tablet content uniformity
Mitigation: Implement milling and sieving controls with regular particle size analysis

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±5% for assay, ±0.1% for related substances, ±10% for particle size distribution

Test Method

HPLC for purity, USP dissolution testing, Karl Fischer for moisture, laser diffraction for particle size, microbial enumeration per USP <61>

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Active Pharmaceutical Ingredient (API)

Manufacturer profiles associated with Active Pharmaceutical Ingredient (API).

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between API and finished dosage form?

API is the pure drug substance that provides therapeutic effect, while finished dosage form (like tablets) contains API combined with excipients for administration.

How are APIs tested for quality?

APIs undergo rigorous testing including identity, assay, impurity profiling, residual solvents, microbial limits, and physical characterization per pharmacopeial standards.

What are common sources of APIs?

APIs are sourced from chemical synthesis, fermentation, extraction from natural sources, or recombinant DNA technology for biologics.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Active Pharmaceutical Ingredient (API)