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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 392 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.
4844 Active Pharmaceutical Ingredients items

Azasetron hydrochloride

CAS No: 123040-16-4

Formula: C17H20ClN3O3.ClH

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

White to Off-White SolidNazasetron (azasetron) hydrochloride is the fourth in the class of highly potent 5-HT3 receptor antagonists to reach the market for prophylaxis of severe nausea and vomiting induced by cytotoxic chemotherapy and by total body X-radiation. Nazasetron is devoid of dopamine D2 receptor blocking activity and therefore is free of the extrapyrimidal side effects associated with other commonly used antiemetics such as metoclopramide and domperidone. More

Ethacridine

CAS No: 442-16-0

Formula: C15H15N3O

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

This product is a disinfectant and antiseptic.More

Flavoxate

CAS No: 15301-69-6

Formula: C24H25NO4

Categories: Active Pharmaceutical Ingredients > Urinary System Drugs

ChEBI: A carboxylic ester resulting from the formal condensation of 3-methylflavone-8-carboxylic acid with 2-(1-piperidinyl)ethanol.More

Selumetinib

CAS No: 606143-52-6

Formula: C17H15BrClFN4O3

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

ChEBI: A member of the class of benzimidazoles that is 1-methyl-1H-benzimidazole which is substituted at positions 4, 5, and 6 by fluorine, (4-bromo-2-chlorophenyl)amino, and N-(2-hydroxyethoxy)aminocarbonyl groups, respectiv ly. It is a MEK1 and MEK2 inhibitor.More

Buscopan

CAS No: 149-64-4

Formula: C21H30NO4.Br

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Scopolamine butylbromide is a competitive antagonist of muscarinic acetylcholine receptor (mAChR) with an IC50 of 55.3 ± 4.3 nM.Target: mAChRScopolamine (USAN), also known as levo-duboisine and hyoscine, sold as Scopoderm, is a tropane alkaloid drug with muscarinic antagonist effects. It is among the secondary metabolites of plants from Solanaceae (nightshade) family of plants, such as henbane, jimson weed (Datura), angel's trumpets (Brugmansia), and corkwood (Duboisia). Scopolamine exerMore

2,4-Thiazolidinedione, 5-[[4-[2-(methyl-2-pyridinylamino)ethoxy]phenyl]methyl]-, (2Z)-2-butenedioate (1:1)

CAS No: 155141-29-0

Formula: C18H19N3O3S.C4H4O4

Categories: Active Pharmaceutical Ingredients > Antibiotics

White To Off-White SolidRosiglitazone maleate, belongs to a novel class of thiazolidine diones launched for the treatment of non-insulin-dependent diabetes mellitus (NIDDM), a disease characterized by a pancreatic β-cell defect and insulin resistance in the liver and peripheral tissues. The racemic base can be obtained by KnSvenagel condensation between 2, 4-thiazolidinedione and the corresponding 4-substituted benzaldehyde (itself prepared in 2 steps from 2-chloropyridine), followed by rMore

1136 Active Pharmaceutical Ingredients Suppliers

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actinomycin D

CAS No: 50-76-0

Formula: C62 H86 N12 O16

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Actinomycin D inhibits DNA repair with an IC50 of 0.42 μM. More

Cloprostenol

CAS No: 40665-92-7

Formula: C22H29ClO6

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Prostaglandin.More

Fluvastatin

CAS No: 93957-54-1

Formula: C24H26FNO4

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Fluvastatin (Leschol) inhibits HMG-CoA reductase activity with IC50 of 8 nM.IC50 value: 8 nMTarget: HMG-CoA reductaseFluvastatin is a competitive inhibitor of hydroxymethylglutaryl-coenzyme A reductase (HMGCR), the enzyme that catalyzes the conversion of HMG-CoA to mevalonic acid, the rate-limiting step in cholesterol biosynthesis. Human hepatocellular carcinoma cell (HCC) studies indicate that Fluvastatin induces G2/M phase arrest. In the presence of Fluvastatin, HCC cells show a decreaMore

Sulindac

CAS No: 38194-50-2

Formula: C20H17FO3S

Categories: Active Pharmaceutical Ingredients > Antioxidant Ingredient

Sulindac is a non-steroidal antiinflammatory agent, acts as a COX-2 inhibitor, and inhibits overexpression of COX-2. More

Fluorescein isothiocyanate

CAS No: 27072-45-3

Formula: C21H11NO5S

Categories: Active Pharmaceutical Ingredients > Diagnostic Agents

5(6)-FITC (Fluorescein isothiocyanate) is an amine-reactive derivative of fluorescein dye that has wide-ranging applications as a label for antibodies and other probes, for use in fluorescence microscopy, flow cytometry and immunofluorescence-based assays such as Western blotting and ELISA.More

Aluminium phosphate

CAS No: 7784-30-7

Formula: AlO4P

Categories: Active Pharmaceutical Ingredients > Phosphorus Compounds

White or almost white powder. Aluminum orthophosphate is a white crystalline solid which is often used in liquid or gel form Aluminum phosphate adjuvant is a white hydrogel that sediments slowly and forms a clear supernatant.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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