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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 740 qualified manufacturers and 376 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.
4830 Active Pharmaceutical Ingredients items

Amitriptyline

CAS No: 50-48-6

Formula: C20H23N

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

ChEBI: An organic tricyclic compound that is 10,11-dihydro-5H-dibenzo[a,d][7]annulene substituted by a 3-(dimethylamino)propylidene group at position 5.More

Aluminum potassium sulfate dodecahydrate

CAS No: 7784-24-9

Formula: Al.2H2O4S.12H2O.K

Categories: Active Pharmaceutical Ingredients > Flocculant

white to colourless crystals Aluminum is the most commonly available element in homes and workplaces. Aluminum is readily available for human ingestion through the use of food additives, antacids, buffered aspirin, astringents, nasal sprays, and antiperspirants; from drinking water; from automobile exhaust and tobacco smoke; and from using aluminum foil, aluminum cookware, cans, ceramics, and fi reworks. Workers who are at risk for toxicity are those in refi neries, foundries and also weldMore

Nevirapine

CAS No: 129618-40-2

Formula: C15H14N4O

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Crystalline SolidChEBI: A dipyridodiazepine that is 5,11-dihydro-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepine which is substituted by methyl, oxo, and cyclopropyl groups at positions 4, 6, and 11, respectively. A non-nucleoside reverse tr nscriptase inhibitor with activity against HIV-1, it is used in combination with other antiretrovirals for the treatment of HIV infection.Nevirapine (Viramune) is more than 90% absorbed by theoral route and is widely distributed throughout the body. ItdistributeMore

Cyproterone

CAS No: 2098-66-0

Formula: C22H27ClO3

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

White SolidMore

Linezolid

CAS No: 165800-03-3

Formula: C16H20FN3O4

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

White SolidChEBI: An organofluorine compound that consists of 1,3-oxazolidin-2-one bearing an N-3-fluoro-4-(morpholin-4-yl)phenyl group as well as an acetamidomethyl group at position 5. A synthetic antibacterial agent that inhibits bacterial protein synt esis by binding to a site on 23S ribosomal RNA of the 50S subunit and prevents further formation of a functional 70S initiation complex.Linezolid reached the US market for the treatment of patients with infections caused by serious Gram-posiMore

1116 Active Pharmaceutical Ingredients Suppliers

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Sulfamethoxazole

CAS No: 723-46-6

Formula: C10H11N3O3S

Categories: Active Pharmaceutical Ingredients > Amides

Sulfamethoxazole is a sulfonamide bacteriostatic antibiotic.Target: AntibacterialSulfonamides are structural analogs and competitive antagonists of para-aminobenzoic acid (PABA). They inhibit normal bacterial utilization of PABA for the synthesis of folic acid, an important metabolite in DNA synthesis. The effects seen are usually bacteriostatic in nature. Folic acid is not synthesized in humans, but is instead a dietary requirement. This allows for the selective toxicity to bacterial ceMore

Baicalin

CAS No: 21967-41-9

Formula: C21H18O11

Categories: Active Pharmaceutical Ingredients > Antioxidant Ingredient

Baicalin is a flavonoid glycoside isolated from Scutellaria baicalensis. Baicalin reduces the expression of NF-κB. More

Polymyxin B

CAS No: 1404-26-8

Formula:

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Choline bitartrate

CAS No: 87-67-2

Formula: C5H14NO.C4H5O6

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Choline (bitartrate) is an essential nutrient, often associated with the B vitamins but not yet officially defined as a B vitamin[1]. Choline (bitartrate) plays an important role in synthesis of the neurotransmitter acetylcholine[2]. More

Repaglinide

CAS No: 135062-02-1

Formula: C27H36N2O4

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

White crystalline powder, odorless. Crystallization from ethanol-water (2:1), melting point 126-128℃. Crystallization from neutral water, melting point 130~131℃. [α]D20+6.97℃ (C=0.975, methanol); [α]D20+7.45°(C=1.06, methanol). Acute toxicity LD50. Rat (g/kg): > 1 oral.More

Dapsone

CAS No: 80-08-0

Formula: C12H12N2O2S

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Dapsone is a sulfone active against a wide range of bacteria but mainly employed for its actions against mycobacterium leprae.Target: AntibacterialDapsone is an antibacterial most commonly used in combination with rifampicin and clofazimine as multidrug therapy (MDT) for the treatment of Mycobacterium leprae infections (leprosy). Dapsone antagonized all of the I/R end points measured, showing a remarkable ability to decrease markers of damage through antioxidant, antiinflammatory, and anMore

Ethinylestradiol

CAS No: 57-63-6

Formula: C20H24O2

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Ethynyl estradiol is an orally bio-active estrogen used in almost all modern formulations of combined oral contraceptive pills.Target: Estrogen ReceptorEthinyl estradiol (EE), also sometimes written as ethinylestradiol, ethynyl estradiol, or ethinyl estradiol, is a derivative of 17β-estradiol (E2), the major endogenous estrogen in humans. EE is an orally bioactive estrogen used in many formulations of combined oral contraceptive pills. It is one of the most commonly used medications forMore

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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