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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

Eprazinone

CAS No: 10402-90-1

Formula: C24H32N2O2

Categories: Active Pharmaceutical Ingredients > Respiratory Drugs

ChEBI: A member of the class of piperazines in which the two amino hydrogens of piperazine are replaced by 2-benzoylpropyl and 2-ethoxy-2-phenylethyl groups.More

(+)-Cepharanthine

CAS No: 481-49-2

Formula: C37H38N2O6

Categories: Active Pharmaceutical Ingredients > Blood System Drugs

Cepharanthine, an alkaloid derived from Stephania cepharantha Hayata, with possesses anti-inflammatory and antioxidative activities[1][2][3]. Cepharanthine attenuates muscle and kidney injuries induced by limb ischemia/reperfusion (I/R)[3]. Cepharanthine induces autophagy, apoptosis and cell cycle arrest in breast cancer cells[4]. Cepharanthine inhibits the HIV-1 entry process by reducing plasma membrane fluidity[5]. More

Zinc undecylenate

CAS No: 557-08-4

Formula: C11H20O2.1/2Zn

Categories: Active Pharmaceutical Ingredients > Opacifying

10-Undecenoic acid zinc salt is a natural or synthetic fungistatic fatty acid, is used topically in creams against fungal infections, eczemas, ringworm, and other cutaneous conditions. The zinc provides an astringent action. More

Ferrous carbonate

CAS No: 563-71-3

Formula: CH2O3.Fe

Categories: Active Pharmaceutical Ingredients > Blood System Drugs

With monobasic acids relatively simple carboxylate salts are formed. Iron(II) formate crystallizes as the green dihydrate; the white acetate Fe(OCOCH3)2.4H20 is very soluble in water with some hydrolysis, the solution being readily oxidized. White solid; odorless; gray solid. Decomposes yielding CO2 + FeO at 2C. Insol in H 2O; sol acids to give CO2; sol in H2O saturated with CO 2 to give Fe(HCO3)2 which then oxidizes.More

Swertiamarin

CAS No: 17388-39-5

Formula: C16H22O10

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Swertiamarin, a secoiridoid glycoside found in genera of Enicostemma Species, confers anti-hyperglycemic and anti-hyperlipidemic effects[1]. More

Isoconazole nitrate

CAS No: 24168-96-5

Formula: C18H14Cl4N2O.HNO3

Categories: Active Pharmaceutical Ingredients > Antibiotics

Isoconazole nitrate is a broad-spectrum antimicrobial agent with a highly effective antimycotic and gram-positive antibacterial activity, a rapid rate of absorption and low systemic exposure potential. Isoconazole nitrate is effective against pathogens involved in dermatomycoses, with minimum inhibitory concentrations well below the concentration of ISN in skin and hair follicles. More

Molsidomine

CAS No: 25717-80-0

Formula: C9H14N4O4

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Molsidomine is an orally active, long acting vasodilating drug, metabolized in the liver to the active metabolite linsidomine, which is an unstable compound that releases nitric oxide (NO) upon decay as the actual vasodilating compound. More

1122 Active Pharmaceutical Ingredients Suppliers

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Desipramine hydrochloride

CAS No: 58-28-6

Formula: C18H22N2.ClH

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Desipramine hydrochloride is an inhibitor of norepinephrine transporter (NET), 5-HT transporter (SERT) and dopamine transporter (DAT) with Kis of 4, 61 and 78,720 nM, respectively. More

Diethyl 1,1-cyclobutanedicarboxylate

CAS No: 3779-29-1

Formula: C10H16O4

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Colourless OilMore

4-Ethyl-4,9-dihydroxy-1H-pyrano[3′,4′:6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione

CAS No: 64439-81-2

Formula: C20H16N2O5

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

(±)-10-Hydroxycamptothecin, an indole alkaloid isolated from Camptotheca acuminate, inhibits the activity of topoisomerase I and has a broad spectrum of anticancer activity. More

4,5-Bis(2-methoxyethoxy)-2-nitrobenzonitrile

CAS No: 236750-65-5

Formula: C13H16N2O6

Categories: Active Pharmaceutical Ingredients > Antineoplastics

Ceftazidime pentahydrate

CAS No: 78439-06-2

Formula: C22H22N6O7S2.5H2O

Categories: Active Pharmaceutical Ingredients > Antibiotics

Ceftazidime pentahydrate (GR20263 pentahydrate) is a third generation cephalosporin administered intravenously or intramuscularly. Ceftazidime pentahydrate has a broad spectrum of in vitro activity against Gram-positive and Gram-negative aerobic bacteria. Ceftazidime pentahydrate is particularly active against Enterobacteriaceae (including beta-lactamase-positive strains) and is resistant to hydrolysis by most beta-lactamases[1]. More

Cefamandole

CAS No: 34444-01-4

Formula: C18H18N6O5S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Cefamandole is a second-generation broad-spectrum cephalosporin antibiotic. As the antibiotic is broken down in the body, it releases free NMTT, which can cause hypoprothrombinemia. 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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