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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

Valnemulin hydrochloride

CAS No: 133868-46-9

Formula: C31H52N2O5S.HCl

Categories: Active Pharmaceutical Ingredients > Antibiotics

Valnemulin hydrochloride is a pleuromutilin antibiotic which inhibits protein synthesis in bacteria by binding the peptidyl transferase enzyme in the 50s ribosomal subunit. More

(2E)-3-[3-(4-Fluorophenyl)-1-(1-methylethyl)-1H-indol-2-yl]-2-propenal

CAS No: 93957-50-7

Formula: C20H18FNO

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Paroxetine hydrochloride hemihydrate

CAS No: 110429-35-1

Formula: C19H20FNO3.ClH.1/2H2O

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

White or almost white, crystalline powder.More

1,3,5-Triazine-2,4-diamine, 6-(2,5-dichlorophenyl)-, (2Z)-2-butenedioate (1:1)

CAS No: 84504-69-8

Formula: C9H7Cl2N5.C4H4O4

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Irsogladine is a PDE4 inhibitor and muscarinic acetylcholine receptor binder.Target: PDE4; mACHRIrsogladine treatment (300 and 500 mg/kg/day) resulted in a dose-dependent reduction of angiogenesis in wild-type mice by 21 and 45.3% (P < 0.02, P < 0.001), in tPA-deficient mice by 42.6 and 46% (P < 0.001, P < 0.001), and in uPA-deficient mice by 27.2 and 46% (P < 0.05, p < 0.001), respectively. Irsogladine inhibits bFGF-induced angiogenesis in wild-type, tPA-knockout, and uPA-knockout miceMore

1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid, 3-[[(3S,5S)-5-[[(aminosulfonyl)amino]methyl]-3-pyrrolidinyl]thio]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-, hydrate (1:1), (4R,5S,6S)-

CAS No: 364622-82-2

Formula: C15H24N4O6S2.H2O

Categories: Active Pharmaceutical Ingredients > Antibiotics

Doripenem monohydrate is a new member of the carbapenem class of beta-lactam antibiotics with broad-spectrum coverage of Gram-positive, Gram-negative and anaerobic pathogens.Target: AntibacterialDoripenem is an ultra-broad-spectrum injectable antibiotic. It is a beta-lactam and belongs to the subgroup of carbapenems. It was launched by Shionogi Co. of Japan under the brand name Finibax in 2005 and is being marketed outside Japan by Johnson & Johnson. It is particularly active against PseMore

4′-Formylacetanilide thiosemicarbazone

CAS No: 104-06-3

Formula: C10H12N4OS

Categories: Active Pharmaceutical Ingredients > Semicarbazides

SolidMore

Rabeprazole sodium

CAS No: 117976-90-6

Formula: C18H21N3O3S.Na

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Rebeprazole sodium is White Crystalline Solid Rebeprazole sodium was launched as Pariet in Japan, its first market, for the treatment of peptic ulcers including gastric and duodenal ulcers. From 4-chloro- 2,3-dimethylpyridine N-oxide, a six step synthesis allows access to the basic skeleton after successive condensations. Rabeprazole, a structural analog of Omeprazole, the first compound to have been marketed in this class up to now, is reported to be a more potent inhibitor of gastric H+/K+-aMore

2,6-Dimethoxybenzoic acid

CAS No: 1466-76-8

Formula: C9H10O4

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

2,6-Dimethoxybenzoic acid is a member of organic compounds known as o-methoxybenzoic acids and derivatives. More

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Bicuculline

CAS No: 485-49-4

Formula: C20H17NO6

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

(+)-Bicuculline is a light-sensitive competitive antagonist of GABA-A receptor. More

(+)-Sparteine

CAS No: 492-08-0

Formula: C15H26N2

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

(+)-Sparteine is a natural alkaloid acting as a ganglionic blocking agent. (+)-Sparteine competitively blocks nicotinic ACh receptor in the neurons. More

Rifamycin S

CAS No: 13553-79-2

Formula: C37H45NO12

Categories: Active Pharmaceutical Ingredients > Antibiotics

Rifamycin S is a quinone and an antibiotic agnet against Gram-positive bacteria (including MRSA). Rifamycin S is the oxidized forms of a reversible oxidation-reduction system involving two electrons. Rifamycin S generates reactive oxygen species (ROS) and inhibits microsomal lipid peroxidation. Rifamycin S can be used for tuberculosis and leprosy[1][2][3]. More

Sulfadimidine sodium

CAS No: 1981-58-4

Formula: C12H14N4O2S.Na

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Sulfamethazine sodium (Sulfadimidine sodium) is an antimicrobial that is widely used to treat and prevent various animal diseases (such as gastrointestinal and respiratory tract infections). In China and the European Commission, the maximum residue level for Sulfamethazine sodium in animal product is set at 100 µg/kg[1][2]. More

Norgestimate

CAS No: 35189-28-7

Formula: C23H31NO3

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Norgestimate, a synthetic progesterone analog, is an orally active progestin with highly selective progestational activity and minimal androgenicity. Norgestimate is used for an oral contraceptive[1][2]. More

Clofibrate

CAS No: 637-07-0

Formula: C12H15ClO3

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Clofibrate is an agonist of PPAR, with EC50s of 50 μM, ∼500 μM for murine PPARα and PPARγ, and 55 μM, ∼500 μM for human PPARα and PPARγ, respectively. More

Indium chloride

CAS No: 12672-70-7

Formula: Cl.In

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

Indium trichloride (InCl3) is a white, odorless, and highly deliquescent powder. Its particles are flake or plate-shaped and highly soluble in water and mineral acids.Indium trichloride is used as a starting compound for the synthesis of other inorganic and organic indium compounds, for example TMI (tri-methyl indium), which is the most widely used metal-organic precursor for indium.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!
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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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