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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

Potassium chloride

CAS No: 7447-40-7

Formula: ClK

Categories: Active Pharmaceutical Ingredients > Viscosity Controlling

Potassium chloride, KCI, also known as potassium muriate and sylvite, is a colorless crystalline solid with a salty taste that melts at 776°C (1420 OF). It is soluble in water, but insoluble in alcohol. Potassium chloride is used in fertilizers, pharmaceuticals, photography, and as a salt substitute.

potassium chloride powder Potassium chloride occurs as odorless, colorless crystals or a whitecrystalline powder, with an unpleasant, saline taste. The crystallattice is a face-cenMore

Vanillin

CAS No: 121-33-5

Formula: C8H8O3

Categories: Active Pharmaceutical Ingredients > Fragrance Ingredient

Vanillin, an organic compound that is primarily recognized as the main constituent of vanilla bean extract, stands out as a white crystalline solid. This compound is celebrated for its unique and sweet aromatic scent as well as its delightful flavor, making it a highly sought-after ingredient in the culinary and fragrance industries. Its presence is ubiquitous in a wide array of food products, ranging from baked goods to dairy items, where it imparts a rich vanilla essence. Additionally, vanillin plays a crucial role in the fragrance industry, where it is utilized to create the familiar and beloved vanilla scent in perfumes, candles, and other aromatic products. Its versatility and the pleasant associations people have with its aroma and taste have solidified vanillin's status as an essential component in both the food and fragrance sectors.More

Oxytocin

CAS No: 50-56-6

Formula: C43H66N12O12S2

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Oxytocin (α-Hypophamine) is a mammalian neurohypophysial hormone; its actions are mediated by specific, high-affinity oxytocin receptors; ligand of oxytocin receptor. More

8-Hydroxyquinoline

CAS No: 148-24-3

Formula: C9H7NO

Categories: Active Pharmaceutical Ingredients > Antimicrobials

Cream-colored crystalsChEBI: A monohydroxyquinoline that is quinoline substituted by a hydroxy group at position 8. Its fungicidal properties are used for the control of grey mould on vines and tomatoes.White to off-white or faintly yellow crystalline powder. Phenolic odor.More

Febuxostat

CAS No: 144060-53-7

Formula: C16H16N2O3S

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Crystalline SolidFebuxostat, a selective xanthine oxidase inhibitor, was launched for the chronic management of hyperuricemia in patients with gout. Hyperuricemia is defined as a serum uric acid concentration exceeding the limit of solubility. It predisposes affected persons to gout, a disease characterized by the formation of crystals of monosodium urate or uric acid from supersaturated fluids in joints and other tissues. Crystal deposition is asymptomatic, but it is revealed by bouts ofMore

Chlorpheniramine maleate

CAS No: 113-92-8

Formula: C16H19ClN2.C4H4O4

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

Chlorpheniramine maleate is an histamine H1 receptor antagonist with IC50 of 12 nM.Target: Histamine H1 ReceptorChlorpheniramine inhibits the proliferation of MCF-7, MDA-MB 231, and Ehrlich cells in a dose-response manner, and significantly reduces the ornithine decarboxylase mRNA translation by 50%-70% at the 250 μM [1]. Chlorpheniramine displaces of [3H]pyrilamine from human histamine receptor subtype 1 expressed in CHO cells with IC50 of 66 nM. Chlorpheniramine displays antimalarial aMore

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Oleuropein

CAS No: 32619-42-4

Formula: C25H32O13

Categories: Active Pharmaceutical Ingredients > Antioxidant Ingredient

Oleuropein, found in olive leaves and oil, exerts antioxidant, anti-inflammatory and anti-atherogenic effects through direct inhibition of PPARγ transcriptional activity[1]. Oleuropein induces apoptosis in breast cancer cells via the p53-dependent pathway and through the regulation of Bax and Bcl2 genes. Oleuropein also inhibits aromatase[2]. More

Dyclonine hydrochloride

CAS No: 536-43-6

Formula: C18H28ClNO2

Categories: Active Pharmaceutical Ingredients > Anesthetic Agents

Dyclonine is an oral anaesthetic found in Sucrets, an over the counter throat lozenge.Target: Sodium ChannelDyclonine is an oral anaesthetic that is the active ingredient of Sucrets, an over the counter throat lozenge. It is also found in some varieties of the Cepacol sore throat spray. It is a local anesthetic, used topically as the hydrochloride salt. Dyclonine hydrochloride has been found to possess, in addition to its topical anesthetic properties, significant bactericidal and fungicMore

Telmisartan

CAS No: 144701-48-4

Formula: C33H30N4O2

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

White or off-white crystalline powder, odorless and tasteless. Soluble in chloroform, slightly soluble in methanol, very slightly soluble in acetone, practically insoluble in water. Slightly soluble in 0.1mol/L hydrochloric acid, soluble in 0.1mol/L sodium hydroxide.Absorption coefficient(E1%1cm):509~541. White or off white crystalline powder. ChEBI: A member of the class of benzimidazoles used widely in the treatment of hypertension.More

Zinc chloride

CAS No: 7646-85-7

Formula: Cl2Zn

Categories: Active Pharmaceutical Ingredients > Oral Care

White granular crystal or powder of hexagonal system, highly soluble in water, soluble in methanol, ethanol, glycerine, acetone, diethyl ether but Insoluble in liquid ammonia. More

(1-Hydroxyethylidene)-1,1-diphosphonic acid

CAS No: 2809-21-4

Formula: C2H8O7P2

Categories: Active Pharmaceutical Ingredients > Water Stabilizer

Etidronic acid is a bisphosphonate used in detergents, water treatment, cosmetics and pharmaceutical treatment.Target: OthersEtidronic Acid is a chelating agent and may be added to bind to or counter the effects of substances such as arsenic, iron, or other metal ions that can occur in the presence of some soaps. Etidronic acid also acts to retard oxidation of fatty acids. For clarification, a chelator, or chelating agent is a binding component added to many cosmetics, beauty products, aMore

Gefitinib

CAS No: 184475-35-2

Formula: C22H24ClFN4O3

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Light-Yellow Crystalline PowderGefitinib was introduced in Japan as a daily oral monotherapy for the treatment of inoperable or recurrent non-small cell lung cancers (NSCLC). This anilinoquinazoline derivative can be synthesized in 6 steps starting from 6,7-dimethoxyquinazolin-4(3H)-one by successive monodemethylationlacetylation of the 6-hydroxy-group followed by chlorination and reaction with 3-chloro-4-fluoroaniline, finally deacetylation and alkylation with 3-(4-morpholinyl)propylbromiMore

(±)-Chloroquine diphosphate

CAS No: 50-63-5

Formula: C18H26ClN3.2H3O4P

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Chloroquine (diphosphate) is an antimalarial and anti-inflammatory drug widely used to treat malaria and rheumatoid arthritis. Chloroquine is an inhibitor of autophagy and toll-like receptors (TLRs). 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:

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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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