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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 380 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

Desipramine

CAS No: 50-47-5

Formula: C18H22N2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

ChEBI: A dibenzoazepine consisting of 10,11-dihydro-5H-dibenzo[b,f]azepine substituted on nitrogen with a 3-(methylamino)propyl group.More

Faropenem

CAS No: 106560-14-9

Formula: C12H15NO5S

Categories: Active Pharmaceutical Ingredients > Antibiotics

Farom was launched in Japan for use as an antibiotic against common respiratory tract pathogens. It can be prepared by several related routes of about seven steps starting with tetrahydrofuran-2-thiocarboxylic acid and a silylated azetidinone. It is a broad spectrum oral penem antibiotic that is β-lactamase stable. Farom is the most active β-lactam against anaerobes (more than cefaclor, cefixime and amoxicillin) but also has activity against Gram-positive, Gram-negative and enterobacteriaMore

Ceftizoxime

CAS No: 68401-81-0

Formula: C13H13N5O5S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Ceftizoxime is a bacterial inhibitor which acts by interfering with bacterial cell wall synthesis and inhibiting cross-linking of the peptidoglycan. More

Lindane

CAS No: 58-89-9

Formula: C6H6Cl6

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

white powder Lindane is a white to yellow, crystalline powder with a slight, musty odor (pure material is odorless). BHC is a white-to-brownish crystalline solidwith a musty, phosgene-like odor.More

Dimercaprol

CAS No: 59-52-9

Formula: C3H8OS2

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

Dimercaprol (2,3-Dimercapto-1-propanol) is an anti-heavy metal-poisoning drug, which exhibits anti-HIV activity[1]. More

(-)-Lobeline

CAS No: 90-69-7

Formula: C22H27NO2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Crystalline solid; melts at 130°C (266°F);slightly soluble in water, dissolves readily inhot alcohol, ether, chloroform, and benzene.More

Landiolol

CAS No: 133242-30-5

Formula: C25H39N3O8

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Landiolol was launched as iv infusion for the treatment of tachyarrhythmia during surgery. This structurally related derivative of esmolol can be synthesized in 3 linear steps from 3-(4-hydroxyphenyl)propionic acid by successive esterification followed by alkylation of the phenol function with (2S)-glycidyltosylate and opening of the resulting epoxide by the appropriate amine. Landiolol is an ultra short acting PI-adrenergic blocker more cardioselective (βI/β2 = 255) than esmolol (βi/β2 =More

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Nisoldipine

CAS No: 63675-72-9

Formula: C20H24N2O6

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Nisoldipine(BAY-k 5552; Sular) is a calcium channel blocker belonging to the dihydropyridines class, specific for L-type Cav1.2 with IC50 of 10 nM. IC50 value: 10 nMTarget: L-type Cav1.2Nisoldipine is a potent blocker of L-type calcium channels. Nisoldipine binds directly to inactive calcium channels stabilizing their inactive conformation Similar to other DHP CCBs. Nisoldipine displays selectivity for arterial smooth muscle cells due to great number of inactive channels and the α1 subunMore

Cidofovir

CAS No: 113852-37-2

Formula: C8H14N3O6P

Categories: Active Pharmaceutical Ingredients > Phosphines

Cidofovir launched as a first-line treatment for CMV retinitis in AIDS patients. It is a nucleotide analog with potent activity against a broad spectrum of DNA viruses, e.g., HSVl, HSV2, CMV, adenovirus and papillomavirus. Cidofovir can be synthesized by a number of methods, the most efficient involves ring openning of (R)-glycidol with cytosine. Metabolically, cidofovir does not require intracellular activation by virally-encoded enzymes like similar compounds, e.g., aciclovir or ganciclMore

Lomefloxacin hydrochloride

CAS No: 98079-52-8

Formula: C17H19F2N3O3.ClH

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Lomefloxacin HCl is a fluoroquinolone antibiotic.Target: AntibacterialLomefloxacin is a bactericidal fluoroquinolone agent with activity against a wide range of gram-negative and gram-positive organisms. The bactericidal action of lomefloxacin results from interference with the activity of the bacterial enzymes DNA gyrase and topoisomerase IV, which are needed for the transcription and replication of bacterial DNA. DNA gyrase appears to be the primary quinolone target for gram-negative bMore

Pranlukast

CAS No: 103177-37-3

Formula: C27H23N5O4

Categories: Active Pharmaceutical Ingredients > Respiratory Drugs

Off-white solidPranlukast, a novel chromone derivative, was introduced in Japan for the treatment of bronchial asthma and allergic diseases. Pranlukast is a highly potent, selective and competitive antagonist of peptidoleukotrienes with high affinity for the LTD4 receptor. The therapeutic potential of pranlukast in managing irritable bowel syndrome has been suggested. Pranlukast is a common respiratory drug, it belongs to asthma drugs.More

CEPHALEXIN MONOHYDRATE

CAS No: 23325-78-2

Formula: C16H19N3O5S

Categories: Active Pharmaceutical Ingredients > Antibiotics

Cefalexin monohydrate is a cephalosporin antibiotic.Target: AntibacterialCefalexin (INN, BAN) or cephalexin (USAN, AAN) is a first-generation cephalosporin antibiotic introduced in 1967 by Eli Lilly and Company. It is an orally administered agent with a similar antimicrobial spectrum to the intravenous agents cefalotin and cefazolin. It was first marketed as Keflex (Lilly), and is marketed under several other trade names. As of 2008, cefalexin was the most popular cephalosporin antibiotiMore

Diclofenac diethylamine

CAS No: 78213-16-8

Formula: C14H11Cl2NO2.C4H11N

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Diclofenac diethylamine is a potent and nonselective anti-inflammatory agent, acts as a COX inhibitor, with IC50s of 4 nM, 1.3 nM for human COX-1 and COX-2 in CHO cells, and 5.1, 0.84 μM for ovine COX-1 and COX-2, respectively. 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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