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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

Sulfapyridine

CAS No: 144-83-2

Formula: C11H11N3O2S

Categories: Active Pharmaceutical Ingredients > Antibiotics

White to Off-White SolidChEBI: A sulfonamide consisting of pyridine with a 4-aminobenzenesulfonamido group at the 2-position.Odorless or almost odorless white or yellowish-white crystalline powder. Very slightly bitter taste. Aqueous solution is neutral. Sulfapyridine’s plasma half-life is 9 hours.This compound is a white, crystalline, odorless, and tastelesssubstance. It is stable in air but slowly darkens on exposureto light. It is soluble in water (1:3,500), in alcohol(1:440), and in acetoneMore

Elcatonin Acetate

CAS No: 60731-46-6

Formula: C148H244N42O47

Categories: Active Pharmaceutical Ingredients > Fluid, Electrolyte, and Acid-base Balance

Elcatonin (Carbocalcitonin) is a synthetic analog of eel calcitonin. Elcatonin increases bone mineral density, inhibits bone resorption and processes a central analgesic effect[1]. More

Thiocolchicoside

CAS No: 602-41-5

Formula: C27H33NO10S

Categories: Active Pharmaceutical Ingredients > Anesthetic Agents

Thiocolchicoside is a competitive γ-aminobutyric acid type A (GABAA) receptor antagonist and glycine receptor agonist in the central nervous system. Thiocolchicoside is a semisynthetic sulfur derivative of colchicoside. Thiocolchicoside is a muscle relaxant and has anti-inflammatory, and analgesic properties[1]. More

Deoxycorticosterone acetate

CAS No: 56-47-3

Formula: C23H32O4

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Deoxycorticosterone acetate is a steroid hormone produced by the adrenal gland that possesses mineralocorticoid activity and acts as a precursor to aldosterone. More

Dofetilide

CAS No: 115256-11-6

Formula: C19H27N3O5S2

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Dofetilide(Tikosyn) is a class III antiarrhythmic agent.Target: Potassium ChannelIn patients with congestive heart failure and reduced left ventricular function, dofetilide was effective in converting atrial fibrillation, preventing its recurrence, and reducing the risk of hospitalization for worsening heart failure. Dofetilide had no effect on mortality [1]. dofetilide preferentially blocks open (or activated) channels and that the fast inactivation may competitively slow the binding kiMore

Landiolol hydrochloride

CAS No: 144481-98-1

Formula: C25H39N3O8.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Landiolol hydrochloride (ONO1101 hydrochloride) is a highly beta1 selective ultra-short acting beta-blocker (β1/β2 selectivity = 255:1, a half-life of 4 min), acts as an adrenoceptor antagonist[1]. More

2-ETHYLPHENYLBORONICACID

CAS No: 90002-36-1

Formula: C8H11BO2

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

White solidMore

Lonidamine

CAS No: 50264-69-2

Formula: C15H10Cl2N2O2

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Lonidamine is an orally administered small molecule hexokinase inactivator.Target: OthersLonidamine is a derivative of indazole-3-carboxylic acid, which for a long time, has been known to inhibit aerobic glycolysis in cancer cells. It seems to enhance aerobic glycolysis in normal cells, but suppress glycolysis in cancer cells. This is most likely through the inhibition of the mitochondrially bound hexokinase. Later studies in Ehrlich ascites tumor cells showed that lonidamine inhibits boMore

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Fleroxacin

CAS No: 79660-72-3

Formula: C17H18F3N3O3

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

Fleroxacin is a broad-spectrum antimicrobial fluoroquinolone.Target: AntibacterialFleroxacin (Ro 23-6240; AM-833) is a new trifluorinated quinolone exhibiting high activity against a broad spectrum of gram-negative and gram-positive bacteria. Fleroxacin is characterized pharmacokinetically by a long elimination half-life (9 to 10 h) and high concentrations in plasma (e.g., maximum concentration of 2.3 micrograms/ml after an oral dose of 200 mg) [1]. Fleroxacin is effective against HaemopMore

5-Bromo-5-nitro-1,3-dioxane

CAS No: 30007-47-7

Formula: C4H6BrNO4

Categories: Active Pharmaceutical Ingredients > Cosmetic Preservative

White solidMore

Wogonin

CAS No: 632-85-9

Formula: C16H12O5

Categories: Active Pharmaceutical Ingredients > Bleaching Agent

Wogonin is a naturally occurring mono-flavonoid, can inhibit the activity of CDK8 and Wnt, and exhibits anti-inflammatory and anti-tumor effects. More

Ethyl imidazole-4-carboxylate

CAS No: 23785-21-9

Formula: C6H8N2O2

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

White to light yellow crystal, powder or crystalline powderMore

Besifloxacin hydrochloride

CAS No: 405165-61-9

Formula: C19H21ClFN3O3.ClH

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Besifloxacin hydrochloride is a fourth-generation fluoroquinolone antibiotic. IC50 Value:Target: AntibacterialBesifloxacin has been found to inhibit production of pro-inflammatory cytokines in vitro. Besifloxacin is a novel 8-chloro-fluoroquinolone agent with potent, bactericidal activity against prevalent and drug-resistant pathogens.besifloxacin is the most potent agent tested against gram-positive pathogens and anaerobes and is generally equivalent to comparator fluoroquinolones in acMore

Amikacin sulfate salt

CAS No: 149022-22-0

Formula: C22H43N5O13.2H2O4S

Categories: Active Pharmaceutical Ingredients > Antibiotics

Anti-infectives, used to treat urinary tract infections, sepsis, skin infections, bone and joint infections, pneumonia and lower respiratory tract infections caused by sensitive bacteriaMore

TRANILAST

CAS No: 53902-17-3

Formula: C18H17NO5

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

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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