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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.
4831 Active Pharmaceutical Ingredients items

Benzyl alcohol

CAS No: 100-51-6

Formula: C7H8O

Categories: Active Pharmaceutical Ingredients > Dissolving Agent

Benzyl Alcohol is a colorless, transparent liquid that gives off a mildly aromatic smell and is pleasant. Its chemical formula is C7H8O. As an important organic solvent and chemical raw material, it has been widely used in many fields. Benzyl Alcohol is particularly common in the pharmaceutical, fragrance and cosmetic industries, where it is commonly used as a solvent and preservative to ensure product stability and extend shelf life. Benzyl Alcohol plays a vital role in the production of products such as synthetic fragrances, medicines and detergents. Not only is it able to dissolve various ingredients efficiently, but it also imparts a unique aroma to the final product. In addition, Benzyl Alcohol can be used in the preparation of other chemicals, such as benzoic acid and Benzyl Alcohol ester, which also have a wide range of industrial and scientific applications. In industrial production, Benzyl Alcohol is widely used as a cleaning agent and diluent due to its good solubility and low toxicity. It can effectively remove various stains and impurities, while being relatively safe for the environment and the human body. Because of its unique chemical properties, Benzyl Alcohol is indispensable in many fine chemical products and has become an integral part of modern industrial production.More

Acetaminophen

CAS No: 103-90-2

Formula: C8H9NO2

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Acetaminophen, also known by its common name paracetamol, is a widely utilized medication that serves as an effective analgesic, which means it alleviates pain, and an antipyretic, which refers to its ability to reduce fever. This compound is characterized by its chemical formula C8H9NO2. It is one of the most popular and frequently used over-the-counter drugs available on the market today, and it comes in a variety of formulations to suit different needs and preferences. These formulations can include tablets, capsules, syrups, and even suppositories, making it accessible and convenient for individuals seeking relief from minor aches and pains or the discomfort of fever.More

Albendazole

CAS No: 54965-21-8

Formula: C12H15N3O2S

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Albendazole is a member of the benzimidazole compounds used as a drug indicated for the treatment of a variety of worm infestations.Target: AntiparasiticAlbendazole, marketed as Albenza (United States), Eskazole, Zentel, Andazol and Alworm, is a benzimidazole drug used for the treatment of a variety of parasitic worm infestations. Although this use is widespread in the United States, the U.S. Food and Drug Administration (FDA) has not approved albendazole for this indication. It is markeMore

Choline chloride

CAS No: 67-48-1

Formula: C5H14NO.Cl

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Choline chloride is an organic compound and a quaternary ammonium salt, an acyl group acceptor and choline acetyltransferase substrate, also is an important additive in feed especially for chickens where it accelerates growth.More

Poly(vinylpyrrolidone)

CAS No: 9003-39-8

Formula: (C6H9NO)x

Categories: Active Pharmaceutical Ingredients > Film Forming

Polyvinylpyrrolidone is a compound which has been widely tested and used in human and veterinary medicine as an effective wound healing accelerator and disinfectant when combined with iodine and other compounds.More

Sodium benzoate

CAS No: 532-32-1

Formula: C7H6O2.Na

Categories: Active Pharmaceutical Ingredients > Anticorrosive

Sodium benzoate is a white crystalline powder that is the sodium salt of benzoic acid. It is highly soluble in water and exhibits antimicrobial properties, making it an effective preservative. Sodium benzoate has a low toxicity level and is generally recognized as safe for use in food products.More

Natamycin

CAS No: 7681-93-8

Formula: C33H47NO13

Categories: Active Pharmaceutical Ingredients > Cosmetic Preservative

Natamycin (pimaricin) is an antifungal macrolide polyene that binds to cell membrane sterols.Target: AntifungalNatamycin (INN), also known as pimaricin and sometimes sold as Natacyn, is a naturally occurring antifungal agent produced during fermentation by the bacterium Streptomyces natalensis, commonly found in soil. Natamycin has a very low solubility in water; however, natamycin is effective at very low levels. There is an MIC (minimum inhibitory concentration) of less than 10 ppm forMore

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Vildagliptin

CAS No: 274901-16-5

Formula: C17H25N3O2

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Vildagliptin (LAF-237; NVP-LAF 237) inhibits DPP-4 with IC50 of 2.3 nM.IC50 Value: 2.3 nM[1]Target: DPP-4in vitro: Vildagliptin is an N-substituted glycyl-2-cyanopyrrolidine (figure 2). It is a potent competitive and reversible inhibitor of human and rodent DPP-4 in vitro, with a median inhibitory concentration (IC50) ~2-3 nmol/L. Importantly, vildagliptin inhibits DPP-4 with high specificity relative to other similar peptidases where its IC50 exceeds 200 mol/L [1].in vivo: Compared to aMore

Cyproheptadine hydrochloride

CAS No: 969-33-5

Formula: C21H21N.ClH

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

Cyproheptadine is a histamine receptor antagonist for 5-HT2 receptor with IC50 of 0.6 nM. Target: 5-HT2 ReceptorCyproheptadine is a serotonin antagonist and a histamine H2 blocker used as antipruritic, appetite stimulant, antiallergic, and for the post-gastrectomy dumping syndrome, etc. Inhibitory effects of cyclobenzaprine, amitriptyline, and cyproheptadine on mono- and polysynaptic reflex potentials are due to the inhibition of descending serotonergic systems through 5-HT(2) receptorsMore

Sodium saccharin dihydrate

CAS No: 6155-57-3

Formula: C7H5NO3S.2H2O.Na

Categories: Active Pharmaceutical Ingredients > Flavouring

dihydrate granular Saccharin sodium occurs as a white, odorless or faintly aromatic,efflorescent, crystalline powder. It has an intensely sweet taste, witha metallic or bitter aftertaste that at normal levels of use can bedetected by approximately 25% of the population. The aftertastecan be masked by blending saccharin sodium with other sweeteners.Saccharin sodium can contain variable amounts of water.More

Tadalafil

CAS No: 171596-29-5

Formula: C22H19N3O4

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

White to Off-White Cyrstalline SolidChEBI: A pyrazinopyridoindole that is 2,3,6,7,12,12a-hexahydropyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione substituted at position 2 by a methyl group and at position 6 by a 1,3-benzodioxol-5-yl group (the 6R,12aRTadalafil (market name “Cialis” or “Adcirca”) is a kind of PDE5 inhibitor used for the treatment of erectile dysfunction, benign prosta1,3-benzodioxol-5-yl)-2,3,6,7,12,12a-hexahydro-2-methyl-pyrazino[1', 2' :1,6]pyrido[3,4-b]indole-1,4-dione (CiaMore

Barium carbonate

CAS No: 513-77-9

Formula: CH2O3.Ba

Categories: Active Pharmaceutical Ingredients > Diagnostic Agents

Industrial product is white powder. Almost insoluble in water, soluble in alcohol, soluble in acid and ammonium chloride solution.More

Poly(vinyl alcohol)

CAS No: 9002-89-5

Formula: (C2H4O)x

Categories: Active Pharmaceutical Ingredients > Film Forming

Polyvinyl alcohol is a hydrolysis product of polyvinyl acetate, rather than by the polymerization of monomers; the molecular backbone contains
. The specific gravity of this product 1.25 to 1.35 and the melting point is 212 ~ 267 ℃. It is soluble in hot water and hot dimethyl sulfoxide. Animal experiments show that polyvinyl alcohol, without stimulation, causes no significant toxicity upon subcutaneous, intramuscular, intravenous injection. Polyvinyl alcohol resin products appear as white More

Atorvastatin calcium

CAS No: 134523-03-8

Formula: C33H35FN2O5.1/2Ca

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

1. A selective, competitive HMG-CoA reductase inhibitor. The only drug in its class specfically indicated for lowering both elevated LDL-cholesterol and triglycerides in patients with hypercholesterolemia
2. A selective, competitive HMG-CoA reductase inhibitor. Atorvastatin is the only drug in its class specfically indicated for lowering both elevated LDL-cholesterol and triglycerides in patients with hypercholesterolemia.
3. Antihyperlipidemic, HMGCoA reductase inhibitor
4. DMSO anMore

Levamisole hydrochloride

CAS No: 16595-80-5

Formula: C11H12N2S.ClH

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Levamisole Hcl is an anthelmintic and immunomodulator belonging to a class of synthetic imidazothiazole derivatives.IC50 value: Target: Levamisole suppresses the production of white blood cells, resulting in neutropenia and agranulocytosis. With the increasing use of levamisole as an adulterant, a number of these complications have been reported among cocaine users [1] [2]. Levamisole reversibly and noncompetitively inhibits most isoforms of alkaline phosphatase (e.g., human liver, bone,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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