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Home > Active Pharmaceutical Ingredients
In the chemical industry, API is Active Pharmaceutical Ingredients, meaning the active ingredients in pharmaceutical products. It is the core substance for producing the intended therapeutic effect. The quality of Active Pharmaceutical Ingredients is critical to the safety and efficacy of the final pharmaceutical product. Therefore, the production of API chemicals involves strict regulatory guidelines and standards, such as GMP (Good Manufacturing Practices) and GLP (Good Laboratory Practices). On ECHEMI, you can select API chemical products on your demand from various active pharmaceutical ingredient manufacturers and distributors.

Active Pharmaceutical Ingredients Suppliers

Buying Active Pharmaceutical Ingredients (APIs) can still be challenging, especially when quality, compliance, and supply stability matter most. On ECHEMI, you can access 743 qualified manufacturers and 379 verified distributors across China, India, the USA, Europe, and other regions. Compare API specifications, review compliance standards, and connect directly with reliable suppliers to support your pharmaceutical production and research needs.
Explore active pharmaceutical ingredients for your specific needs now.
4831 Active Pharmaceutical Ingredients items

Abacavir

CAS No: 136470-78-5

Formula: C14H18N6O

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Abacavir is a powerful nucleoside analog reverse transcriptase inhibitor (NRTI) used to treat HIV and AIDS. IC50 value:Target: NRTI; reverse transcriptase inhibitorAbacavir is a nucleoside reverse transcriptase inhibitor marketed since 1999 for the treatment of infection with the human immunodeficiency virus type 1 (HIV). Despite its clinical efficacy, abacavir administration has been associated with serious and sometimes fatal toxic events. Abacavir has been reported to undergo bioactivMore

Etodolac

CAS No: 41340-25-4

Formula: C17H21NO3

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Etodolac is a non-steroidal anti-inflammatory compound that is a non-selective inhibitor of COX (IC50=53.5 nM)IC50 value: 53.5 nMTarget: COX1; COX2Post-marketing studies demonstrated that etodolac inhibition of cyclooxygenase is somewhat COX-2 selective similar to celecoxib and other "COX-2 inhibitors." Unlike rofecoxib, both etodolac and celecoxib can fully inhibit COX-1 and are designated as having "preferential selectivity" toward COX-2. The (inactive against COX) r-enantiomer of etodMore

Rebamipide

CAS No: 90098-04-7

Formula: C19H15ClN2O4

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Rebamipide is an inducer of endogenous prostaglandin and a oxygen-derived free radical scavenger.Target: OthersRebamipide is the first anti-gastric ulcer and antigastritis drug that not only increases endogenous prostaglandin in gastric mucosa but also scavenges oxygen-derived free radicals and inhibits their production. The inhibitory effect of rebamipide on lipid peroxidation induced by a free radical initiator was also demonstrated by the in vitro system using rat gastric mucosal homoMore

Amiodarone

CAS No: 1951-25-3

Formula: C25H29I2NO3

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

ChEBI: A member of the class of 1-benzofurans that is 1-benzofuran substituted by a butyl group at position 2 and a 4-[2-(diethylamino)ethoxy]-3,5-diiodobenzoyl group at position 3. It is a cardiovascular drug used for the treatment of cardiac dysrhythmias.Amiodarone, 2-butyl-3-benzofuranyl-4-[2-(diethylamino)ethoxy]-3,5-diiodophenyl ketone (Cordarone),was introduced as an antianginal agent. It has very pronouncedclass III action and is especially effective in maintainingsinus rhythm in patienMore

Diacerein

CAS No: 13739-02-1

Formula: C19H12O8

Categories: Active Pharmaceutical Ingredients > Drugs Influencing Immune Function

Yellow Crystalline SolidDiacerein is a disease-modifying antirheumatic drug (DMARD), reported to beuseful in the treatment of various inflammatory conditions, includingosteoarthritis. It forms water soluble chelates with calcium and copper, actingultimately to reduce the activity of lysosomal enzymes and decrease the formationof rheumatoid factor.Diacerein is a novel interleukin (IL)-1 inhibitor , the chemical name is diacetyl rhein,it is a compound of anthraquinones, the product can iMore

Alfacalcidol

CAS No: 41294-56-8

Formula: C27H44O2

Categories: Active Pharmaceutical Ingredients > Vitamins and Minerals Medicines

Alfacalcidol (1-hydroxycholecalciferol; Alpha D3; 1.alpha.-Hydroxyvitamin D3) is a non-selective VDR activator medication. IC50 value: Target: VDR activatorAlfacalcidol (1-hydroxycholecalciferol; Alpha D3; 1.alpha.-Hydroxyvitamin D3) improves mechanical bone strength and bone mass; suppresses osteoclastic bone resorption in vivo. More

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Chlorzoxazone

CAS No: 95-25-0

Formula: C7H4ClNO2

Categories: Active Pharmaceutical Ingredients > Anesthetic Agents

Chlorzoxazone is a centrally acting muscle relaxant used to treat muscle spasm and the resulting pain or discomfort. It acts on the spinal cord by depressing reflexes.Chlorzoxazone is currently being used as a marker substrate in vitro/vivo studies to quantify cytochrome P450 2E1 (CYP2E1) activity in humans. More

Dasatinib monohydrate

CAS No: 863127-77-9

Formula: C22H26ClN7O2S.H2O

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

ChEBI: A hydrate that is the monohydrate of dasatinib. It is used for the treatment of chronic, accelerated, or myeloid or lymphoid blast phase chronic myeloid leukemia. Note that the name 'dasatinib' is used to refer to the monohydrate (USAN) as well as to anhyd ous dasatinib (INN).More

Loperamide

CAS No: 53179-11-6

Formula: C29H33ClN2O2

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

ChEBI: A synthetic piperidine derivative, effective against diarrhoea resulting from gastroenteritis or inflammatory bowel disease.More

Flibanserin

CAS No: 167933-07-5

Formula: C20H21F3N4O

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Flibanserin is a novel multifunctional serotonin agonist and antagonist (MSAA) that improves sexual functioning in premenopausal women who suffer from reduced sexual interest and desire.IC50 value:Target: serotoninin vivo: The multifunctional serotonergic agent Flibanserin is both a serotonin 1A agonist and a serotonin 2A antagonist. Flibanserin theoretically improves sexual functioning by enhancing downstream release of dopamine and norepinephrine while reducing serotonin release in theMore

Osthol

CAS No: 484-12-8

Formula: C15H16O3

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Osthole is a natural antihistamine alternative. Osthole may be a potential inhibitor of histamine H1 receptor activity.More

Anifostine trihydrate

CAS No: 112901-68-5

Formula: C5H17N2O4PS

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

Protectant (topical); radioprotector.More

Angiotensin

CAS No: 1407-47-2

Formula:

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

A peptide found in the blood, important in its effect on blood pressure. Both a decapeptide and an octapeptide are known. Their amino acid sequences and hence the complete structures have been established.More

2,2,2-Trifluoroethanol

CAS No: 75-89-8

Formula: C2H3F3O

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Boiling point is 73.6℃, melting point is-43.5℃, refractive index is 1.2940, density (25 ℃) is 1.383g/cm3, enthalpy of evaporation is 37.8kJ/mol.More

Active Pharmaceutical Ingredients Market

Market report will help you efficiently source API chemicals! ECHEMI can provide export and import data of API products you need to monitor and analyze the API market!
  • Phytosterol:

    40.0Yuan/kg -

Frequently Asked Questions

Are APIs safe to store and transport?

APIs must be handled according to regulatory and safety guidelines. Proper storage conditions, protective equipment, and transportation protocols are required to maintain stability and prevent contamination or hazards.

What industries use APIs?

APIs are widely used in pharmaceutical, veterinary, nutraceutical, and chemical research industries. They are essential for manufacturing medications, supplements, and experimental formulations.

How can I buy active pharmaceutical ingredients in bulk?

You can find certified API manufacturers and traders on ECHEMI. They provide detailed product information, CAS numbers, and safety data sheets (SDS) to ensure safe and reliable bulk purchases.

What are the top selling APIs on ECHEMI?

The top selling APIs on ECHEMI include Veterinary Raw Materials, Anesthetic Agents, Antiallergic Drugs, Feed Additives, Hormones and Endocrine Drugs, Digestive System Drugs, Vitamins and Minerals, Synthetic Anti-infective Drugs, Respiratory Drugs, and other chemical drugs.

What are active pharmaceutical ingredients?

Active Pharmaceutical Ingredients, also known as APIs, are the main active ingredients in a pharmaceutical drug to provide the intended therapeutic effect. APIs can be chemically synthesized or obtained from natural sources like plants and animals. After identifying the API, it is combined with other inactive ingredients to create a drug product that can be taken in different forms, such as tablets, capsules or injections.

What are the most common active pharmaceutical ingredients?

Here are some examples of common API chemicals.

1) Paracetamol (Acetaminophen) - a pain reliever and fever reducer

2) Ibuprofen - a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain, fever, and inflammation

3) Aspirin - a medication used to reduce pain, fever, and inflammation and also used as a blood thinner

4) Amoxicillin - an antibiotic used to treat bacterial infections

5) Metformin - an oral medication for type 2 diabetes that lowers blood sugar levels

6) Omeprazole - a proton-pump inhibitor (PPI) used to reduce stomach acid production

7) Atorvastatin - a medication used to lower cholesterol levels in the blood

8) Sertraline - an antidepressant medication belonging to the class of selective serotonin reuptake inhibitors (SSRIs)

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