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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 381 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.
4835 Active Pharmaceutical Ingredients items

Thioguanine

CAS No: 154-42-7

Formula: C5H5N5S

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Crystalline, lyophilized, sterile, endotChEBI: A 2-aminopurine that is the 6-thiono derivative of 2-amino-1,9-dihydro-6H-purine.The drug is available in 40-mg tablets for oral use.Thioguanine is used to treat acute nonlymphocytic leukemia.The mechanism of action involves incorporation of thetriphosphate into DNA and RNA, resulting in inhibition ofprocessing and function. Intracellular phosphorylation is requiredfor activity and inhibition of purine biosynthesis.Resistance can include decreasedMore

Fosfomycin tromethamine

CAS No: 78964-85-9

Formula: C4H11NO3.C3H7O4P

Categories: Active Pharmaceutical Ingredients > Antibiotics

Fosfomycin tromethamine (MK-0955 tromethamine) is a blood-brain barrier penetrating, broad-spectrum antibiotic by irreversibly inhibiting an early stage in cell wall synthesis. Fosfomycin tromethamine shows both in vivo and in vitro activity against a wide range of bacteria, including multidrug-resistant (MDR), extensively drug-resistant (XDR), and pan-drug-resistant (PDR) bacteria[1]. More

Ciprofibrate

CAS No: 52214-84-3

Formula: C13H14Cl2O3

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Ciprofibrate is a peroxisome proliferator-activated receptor agonist.Target: PPARCiprofibrate is a hypolipidemic compound that can induce proliferation of peroxisomes in liver cells of rats. Known to be a PPARα (peroxisome proliferator-activated receptor α) agonist [1, 2]. More

Benserazide hydrochloride

CAS No: 14919-77-8

Formula: C10H15N3O5.ClH

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

White Crystalline SolidChEBI: A hydrochloride that is the monohydrochloride salt of benserazide. An aromatic-L-amino-acid decarboxylase inhibitor (DOPA decarboxylase inhibitor) that does not enter the central nervous system, it is used as an adjunct to levodopa in the treatment of park nsonism. By preventing the conversion of levodopa to dopamine in the periphery, it causes an increase in the amount of levodopa reaching the central nervous system and so reduces the required dose. Benserazide hMore

(±)-Brompheniramine

CAS No: 86-22-6

Formula: C16H19BrN2

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

ChEBI: Pheniramine in which the hydrogen at position 4 of the phenyl substituent is substituted by bromine. A histamine H1 receptor antagonist, brompheniramine is used (commonly as its maleate salt) for the symptomatic relief of allergic cond tions, including rhinitis and conjunctivitis.More

Prasugrel hydrochloride

CAS No: 389574-19-0

Formula: C20H20FNO3S.ClH

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Prasugrel hydrochloride is a platelet inhibitor with IC50 value of 1.8 μM.Target: P2Y12 receptorPrasugrel hydrochloride is a novel platelet inhibitor used for the reduction of thrombotic cardiovascular events (including stent thrombosis) in patients with acute coronary syndrome who are to be managed with PCI [2].Prasugrel hydrochloride reduces the aggregation ("clumping") of platelets by irreversibly binding to P2Y12 receptors. In rat platelets, prasugrel hydrochloride AM inhibited in viMore

1124 Active Pharmaceutical Ingredients Suppliers

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Flunarizine hydrochloride

CAS No: 30484-77-6

Formula: C26H26F2N2.2ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Flunarizine is a selective calcium entry blocker.Target: Calcium ChannelFlunarizine is a drug classified as a calcium channel blocker. Flunarizine is a non-selective calcium entry blocker with other actions including histamine H1 receptor blocking activity. It is effective in the prophylaxis of migraine, occlusive peripheral vascular disease, vertigo of central and peripheral origin, and as an adjuvant in the therapy of epilepsy. It may help to reduce the severity and duration of attacksMore

Quinapril hydrochloride

CAS No: 82586-55-8

Formula: C25H30N2O5.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Quinapril is a prodrug that belongs to the angiotensin-converting enzyme (ACE) inhibitor class of medications.Target: ACEQuinapril is an angiotensin-converting enzyme inhibitor (ACE inhibitor) used in the treatment of hypertension and congestive heart failure. Quinapril is rapidly de-esterified after absorption to quinaprilat (the active diacid metabolite), a potent angiotensin converting enzyme (ACE) inhibitor. Quinapril is now firmly established as an effective and well tolerated ACE iMore

Prazosin hydrochloride

CAS No: 19237-84-4

Formula: C19H21N5O4.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Off-White to Yellow PowderThe antihypertensive effectsof prazosin hydrochloride, 1-(4-amino-6,7-dimethoxy-2-quinazolinyl)-4-(2-furoyl)piperazine monohydrochloride(Minipress), are caused by peripheral vasodilation as a resultof its blockade of 1-adrenergic receptors. In ligand-bindingstudies, prazosin hydrochloride has 5,000-fold greater affinityfor α1-receptors than for some α2-adrenergic receptors.More

(±)-Hydroxyzine

CAS No: 68-88-2

Formula: C21H27ClN2O2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Hydroxyzine is a histamine H1-receptor antagonist.Target: Histamine H1-ReceptorHydroxyzine inhibits carbachol (10 μM)-induced serotonin release by 34% at 10 μM, by 25% 1 μM and by 17% 0.1 μM in pretreated bladder slices for 60 min [1]. Hydroxyzine (0.1 mM) treatment inhibits the progression and severity of EAE by 50% and the extent of mast cell degranulation by 70% in Lewis rats with allergic encephalomyelitis (EAE) [2]. Hydroxyzine (500 ?M) significantly increases transport of etoposideMore

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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