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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

Papaverine

CAS No: 58-74-2

Formula: C20H21NO4

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

White crystalline powder; obtained asorthorhombic prisms from an alcohol–ethermixture; melts at 147°C (296.6°F); sublimesunder vacuum; insoluble in water; soluble inacetone, glacial acetic acid, and benzene.More

Staurosporine

CAS No: 62996-74-1

Formula: C28H26N4O3

Categories: Active Pharmaceutical Ingredients > Antineoplastics

Staurosporine is a potent and non-selective inhibitor of protein kinases with IC50s of 6 nM, 15 nM, 2 nM, and 3 nM for PKC, PKA, c-Fgr, and Phosphorylase kinase respectively. More

(±)-Tetrahydrozoline

CAS No: 84-22-0

Formula: C13H16N2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Procainamide hydrochloride

CAS No: 614-39-1

Formula: C13H21N3O.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Procainamide hydrochloride is an anti-arrhythmic agent and is used to treat cardiac arrhythmia; induces rapid block of the batrachotoxin(BTX)-activated sodium channels of the heart muscle and acts as antagonist to long gating closures. More

Isradipine

CAS No: 75695-93-1

Formula: C19H21N3O5

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Isradipine(Dynacirc) is a calcium channel blocker with an IC50 of 34±8 μM.Target: Calcium ChannelIsradipine(Dynacirc) is a calcium channel blocker with an IC50 of 34±8 μM.It is usually prescribed for the treatment of high blood pressure in order to reduce the risk of stroke and heart attack[1]. Isradipine belongs to the dihydropyridine (DHP) class of calcium channel blockers (CCBs), the most widely used class of CCBs. It is structurally related to felodipine, nifedipine, and nimodipine aMore

Fumagillin

CAS No: 23110-15-8

Formula: C26H34O7

Categories: Active Pharmaceutical Ingredients > Antibiotics

Fumagillin(NSC9168) is a complex biomolecule and used as an antimicrobial agent.Target: AntiparasiticFumagillin is an active amebicide and anti-infective isolated from the fungus Aspergillus fumigatus. Fumagillin does exhibit some side effects that have deterred its acceptance as a viable treatment, but the current body of research on the synthesis of novel analogs of this molecule shows an exciting and promising revival of this drug as both an anti-infective and antiangiogenic agent [1]More

Tebipenem

CAS No: 161715-21-5

Formula: C16H21N3O4S2

Categories: Active Pharmaceutical Ingredients > Antibacterials

Tebipenem is an orally available carbapenem antibiotic, shows broad-spectrum activity against Gram-positive and -negative bacteria, except for Pseudomonas aeruginosa. More

Prothionamide

CAS No: 14222-60-7

Formula: C9H12N2S

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Protionamide is Yellow Solid More

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METHACYCLINE HYDROCHLORIDE

CAS No: 3963-45-9

Formula: C22H23ClN2O8

Categories: Active Pharmaceutical Ingredients > Antibiotics

Antibiotic drugs for gastrointestinal infections, urinary tract infections, respiratory tract infections, etc.More

Phenelzine

CAS No: 51-71-8

Formula: C8H12N2

Categories: Active Pharmaceutical Ingredients > Hydrazine or Hydroxylamine Derivatives

Phenelzine is a non-selective and irreversible monoamine oxidase inhibitor (MAOI), used as an antidepressant and anxiolytic. More

Vitamin E nicotinate

CAS No: 16676-75-8

Formula: C35H53NO3

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

This product is a peripheral vasodilator. It can directly act on the blood vessel wall, has the effect of promoting blood circulation, continuously and steadily increasing blood flow, and can inhibit the biosynthesis of cholesterol. It is used for hypertension, cerebral arteriosclerosis, cerebral stroke, concussion and sequelae of brain trauma, headache, dizziness, central retinitis and other vascular disorders. It can also be used for abnormal lipid metabolism, coronary artery insufficiency andMore

Cefoperazone sodium

CAS No: 62893-20-3

Formula: C25H28N9NaO8S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Cefoperazone sodium salt is a cephalosporin antibiotic for inhibition of rMrp2-mediated [3H]E217βG uptake with IC50 of 199 μM.Target: AntibacterialCefoperazone is a sterile, semisynthetic, broad-spectrum, parenteral cephalosporin antibiotic for intravenous or intramuscular administration. After intravenous administration of 2 g of Cefoperazone, levels in serum rang from 202μg/mL to 375 μg/mL depending on the period of drug administration. After intramuscular injection of 2 g of CefoperazMore

Alendronic acid

CAS No: 66376-36-1

Formula: C4H13NO7P2

Categories: Active Pharmaceutical Ingredients > Phosphines

Alendronic acid, a bisphosphonate, is a farnesyl diphosphate synthase (FDPS) inhibitor. Alendronic acid inhibits osteoclast-mediated bone resorption. Alendronic acid shows efficacy in postmenopausal osteoporosis, malignant hypercalcemia and Paget’s disease[1]. More

Vindesine

CAS No: 53643-48-4

Formula: C43H55N5O7

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

SolidMore

Melitracen

CAS No: 5118-29-6

Formula: C21H25N

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Antidepressant.More

Berenil

CAS No: 908-54-3

Formula: C14H15N7.2C4H7NO3

Categories: Active Pharmaceutical Ingredients > Triazenes

Diminazene aceturate (Diminazene diaceturate) is an anti-trypanosome agent for livestock. The main biochemical mechanism of the trypanocidal actions of Diminazene aceturate is by binding to trypanosomal kinetoplast DNA (kDNA) in a non-intercalative manner through specific interaction with sites rich in adenine-thymine base pairs. Diminazene aceturate is also an angiotensin-converting enzyme 2 (ACE2) activator and has strong and potent anti-inflammatory properties[1][2][3]. 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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