CompoundList
Chemical category

Pharmaceuticals and APIs

Active pharmaceutical ingredients, excipients, intermediates and reference standards grouped by therapeutic use.
Chemicals
12,288
Suppliers
11,473
Subcategories
12
Tablets, capsules and glass vials in a pharmaceutical lab
Illustrative image

Subcategories of pharmaceuticals and APIs

12 narrower families, each with its own chemicals and suppliers.

About pharmaceuticals and APIs

This section covers active pharmaceutical ingredients (APIs) grouped by therapeutic class, together with the excipients, intermediates, impurities and reference standards needed to develop, make and test medicines. Classes follow established pharmacological actions and roles, so a substance with several established uses can appear in more than one class.

Read more about pharmaceuticals and APIs

Buying pharmaceutical materials is different from buying industrial chemicals. For an API that will go into a medicine, the manufacturing site must work to good manufacturing practice, usually following ICH Q7, and the product must meet a pharmacopoeia monograph such as the USP, Ph. Eur., BP, IP or JP where one exists. Regulators in the market of sale expect supporting documents, typically a drug master file, a certificate of suitability from the EDQM, or an equivalent dossier, along with impurity profiles and stability data.

When you post a request, state whether you need the material for research, for development batches or for commercial production, which pharmacopoeia and regulatory documents you require, the batch size and any particle size or polymorph specification. Suppliers on CompoundList list their own grades and documents, and a substance page showing reference data is not proof that any supplier holds a licence. Controlled drugs and their precursors can only be traded between licensed parties, so read the controlled substances policy before you ask for them.

Top pharmaceuticals and APIs

Showing 1 to 48 of 12,288 chemicals, most searched and traded first.

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Top suppliers of pharmaceuticals and APIs

Manufacturers and traders with live products in this category. Paid members appear first.

Pharmaceuticals and APIs suppliers by country

Countries with at least 5 suppliers in this category. Open one to see its manufacturers and traders.

New pharmaceuticals and APIs from suppliers

Products recently listed by manufacturers and traders in this category.

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Latest buy requests for pharmaceuticals and APIs

Open requests from buyers. Suppliers can quote after signing in.

All buy leads

Buyer names and contact details stay private until the buyer accepts a quote.

Guides for buyers

Practical reading on grades, documents, regulation and shipping before you buy.

All guides

Frequently asked questions

Quick answers about buying pharmaceuticals and APIs on CompoundList.

Can I buy APIs on CompoundList for commercial production?

Yes, if the supplier offers a GMP grade with the regulatory documents your market requires, such as a drug master file or a certificate of suitability. Always qualify the supplier and the site yourself before using an API in a registered medicine.

What is the difference between a drug master file and a CEP?

A drug master file is a confidential dossier filed with a regulator, for example the US FDA, that the API maker lets you reference. A certificate of suitability is issued by the EDQM and confirms that an API meets the European Pharmacopoeia monograph.

How do you handle controlled substances?

Narcotic drugs, psychotropic substances and listed precursors can only be traded between licensed parties with the required permits. Listings may be restricted and requests can be reviewed by our compliance team. See the controlled substances policy for details.

Why does one substance appear in several therapeutic classes?

Classes follow established pharmacological actions, and many drugs have more than one. Aspirin, for example, is both an analgesic and an antiplatelet agent.

Request for quote

Cannot find the pharmaceuticals and APIs you need?

Post one buy request with the grade, quantity and destination. Matching suppliers send you quotes, and your contact details stay private until you accept one.