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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 744 qualified manufacturers and 391 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.
4851 Active Pharmaceutical Ingredients items

Granisetron

CAS No: 109889-09-0

Formula: C18H24N4O

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

White to yellowish white crystalline powder, odorless, soluble in water, hard to dissolve in methanol, extremely hard to dissolve in ethanol, almost insoluble in ether. Melting Point: 290~292℃. ChEBI: A monocarboxylic acid amide resulting from the formal condensation of the carboxy group of 1-methyl-1H-indazole-3-carboxylic acid with the primary amino group of (3-endo)-9-methyl-9-azabicyclo[3.3.1]nonan-3-amine. A sele tive 5-HT3 receptor antagonist, it is used (generally as the monohydrochlorMore

Ginkgo biloba extract

CAS No: 90045-36-6

Categories: Active Pharmaceutical Ingredients > Antioxidant Ingredient

1. food and health food industry
Flavonoids in Ginkgo biloba has antioxidant activity, thus can be added as an antioxidant into fats and sweets. Total flavonoids are mostly yellow, and have a wide solubility spectrum including both water-solubility and lipid solubility, so it can play a role of coloring agent. People can process Ginkgo biloba into ultrafine powder and add into food. Grinding ginkgo leaf ultra-finely and adding to cakes, biscuits, noodles, candy, ice cream as 5% to 10% can More

Lapatinib

CAS No: 231277-92-2

Formula: C29H26ClFN4O4S

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Lapatinib (GW572016) is a potent EGFR and ErbB2 inhibitor with IC50s of 10.2 and 9.8 nM, respectively. More

Olanzapine

CAS No: 132539-06-1

Formula: C17H20N4S

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

anti-ulcer, gastrointestinal-emptying agent enhances motility in the upper gastrointestinal tractMore

AMINOPHYLLINE

CAS No: 49746-06-7

Formula: C16H24N10O4

Categories: Active Pharmaceutical Ingredients > Respiratory Drugs

white or light yellow granulesMore

Oxiracetam

CAS No: 62613-82-5

Formula: C6H10N2O3

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Oxiracetam is a cyclic derivative of γ-aminobutyric acid (GABA) which has been commonly used as nootropic drug to treat cognitive impairments.More

Hydrogenated castor oil

CAS No: 8001-78-3

Categories: Active Pharmaceutical Ingredients > Viscosity Controlling

Hydrogenated castor oil occurs as a fine, almost white or pale yellow powder or flakes. The PhEur 6.0 describes hydrogenated castor oil as the oil obtained by hydrogenation of virgin castor oil. It consists mainly of the triglyceride of 12-hydroxystearic acid. white flakes or powderMore

1135 Active Pharmaceutical Ingredients Suppliers

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(+)-1,3-Butanediol

CAS No: 24621-61-2

Formula: C4H10O2

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Colorless to light yellow liquiMore

Trisodium phosphate

CAS No: 7601-54-9

Formula: H3O4P.3Na

Categories: Active Pharmaceutical Ingredients > Water Softener

Trisodium phosphate (anhydrous) is a white, granular or crystalline solid, highly soluble in water and produces a strong alkaline solution. On exposure to heat, trisodium phosphate decomposes and produces toxic and corrosive fumes including phosphorous oxides.
The major use for trisodium phosphate is as a cleaning agent, food additive, stain remover, and degreaser. Trisodium phosphate of commercial grade is often partially hydrated and ranges from anhydrous trisodium phosphate, Na3PO4, toMore

Glucagon

CAS No: 16941-32-5

Formula: C153H225N43O49S

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

White or almost white powderProduced by the α cells of the islands of Langerhans and also by the gastric mucosa. It is opposite in effect to insulin. It appears to be a straight-chain polypeptide with a molecular weight of approximately 3500. Small amounts have been detected in commproduced by recombinant DNA technology ismarketed by Novo Nordisk (glucagon [recombinant] hydrochloride,GlucaGen HypoKit, GlucaGen Diagnostic Kit)and by Eli Lilly (glucagon [recombinant] Emergency Kit). The hyperglyMore

(-)-Tetracycline

CAS No: 60-54-8

Formula: C22H24N2O8

Categories: Active Pharmaceutical Ingredients > Antibiotics

Tetracycline is a broad-spectrum antibiotic, exhibiting activity against a wide range of gram-positive and gram-negative bacteria. More

Itraconazole

CAS No: 84625-61-6

Formula: C35H38Cl2N8O4

Categories: Active Pharmaceutical Ingredients > Antimicrobials

Itraconazole is a triazole antifungal agent.IC50 Value: N/ATarget: antifungalin vitro: Itraconazole is pharmacologically distinct from other azole antifungal agents in that it is the only inhibitor in this class that has been shown to inhibit both the hedgehog signaling pathway and angiogenesis[1, 2]. These distinct activities are unrelated to inhibition of the cytochrome P450 lanosterol 14 alpha-demethylase and the exact molecular targets responsible remain unidentified. Functionally, tMore

Topotecan

CAS No: 123948-87-8

Formula: C23H23N3O5

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Topotecan (SKF 104864A; NSC 609669) is a Topoisomerase I inhibitor. The IC50 values of Topotecan at 24 h are 2.73±0.25 μM of U251 cells, 2.95±0.23 μM of U87 cells, 5.46±0.41 μM of GSCs-U251 and 5.95±0.24 μM of GSCs-U87. More

Erythromycin thiocyanate

CAS No: 7704-67-8

Formula: C37H67NO13.CHNS

Categories: Active Pharmaceutical Ingredients > Antibiotics

Erythromycin thiocyanate is a macrolide antibiotic produced by actinomycete Streptomyces erythreus with a broad spectrum of antimicrobial activity. Erythromycin thiocyanate acts by binding to bacterial 50S ribosomal subunits and inhibits RNA-dependent protein synthesis by blockage of transpeptidation and/or translocation reactions, without affecting synthesis of nucleic acid[1]. More

Pramipexole

CAS No: 104632-26-0

Formula: C10H17N3S

Categories: Active Pharmaceutical Ingredients > Antiparkinson Agents

Off-White SolidChEBI: A member of the class of benzothiazoles that is 4,5,6,7-tetrahydro-1,3-benzothiazole in which the hydrogens at the 2 and 6-pro-S-positions are substituted by amino and propylamino groups, respectively.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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