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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

Terbinafine hydrochloride

CAS No: 78628-80-5

Formula: C21H25N.ClH

Categories: Active Pharmaceutical Ingredients > Hydrocarbons and Derivatives

Terbinafine hydrochloride (TDT 067 hydrochloride) is an antifungal medication used to treat fungal infections. It is a potent non-competitive inhibitor of squalene epoxidase from Candida with a Ki of 30 nM. More

Ammonium carbonate

CAS No: 506-87-6

Formula: CH2O3.2H3N

Categories: Active Pharmaceutical Ingredients > Respiratory Drugs

It is matte orthorhombic crystalline powder. It has strong ammonia odor. It usually can not get anhydrous salt, industrial salt is actually a complex of ammonium bicarbonate and ammonium carbamate. The amount of ammonia is 31%, The amount of carbon dioxide is 56%. It is soluble in water, insoluble in ethanol, carbon disulfide, and concentrated ammonia. It is unstable in the air, it will gradually become ammonium bicarbonate and ammonium carbamate. When be dried at 58℃, it can easily decompose, More

Ferrous fumarate

CAS No: 141-01-5

Formula: C4H4O4.Fe

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Anti-anemia drugs are used to treat iron-deficiency anemia, and are also widely used in food and feed additives. Ferrous fumarate is used as a food iron fortifier, and its absorption effect is better than that of inorganic iron. China stipulates that it can be used for table salt and filling sugar, the usage amount is 1800-1600mg/kg; in high-iron grains and their products (the daily limit is 50g for such foods), it is 520-580mg/kg; in dairy products and infant foods 180-300mg/kg; in cereals and More

Amantadine hydrochloride

CAS No: 665-66-7

Formula: C10H17N.ClH

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Amantadine Hydrochloride is an antiviral and an antiparkinsonian drug.Target: Influenza VirusAmantadine is an antiviral that is used in the prophylactic or symptomatic treatment of influenza A. It is also used as an antiparkinsonian agent, to treat extrapyramidal reactions, and for postherpetic neuralgia. Amantadine binding of M2, based on studies of a peptide representing the M2 transmembrane segment in dodecylphosphocholine micelles. Amantadine competes with protons for binding to theMore

Dimetridazole

CAS No: 551-92-8

Formula: C5H7N3O2

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Dimetridazole is a nitroimidazole class drug that combats protozoan infections.Target: AntiparasiticDimetridazole (DMZ) is a 5-nitroimidazole drug traditionally used for the prevention and treatment of histomoniasis in turkeys, trichomoniasis in pigeons, genital trichomoniasis in cattle and the prevention and treatment of haemorrhagic enteritis in pigs. More

Theobromine

CAS No: 83-67-0

Formula: C7H8N4O2

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Theobromine is a methylxanthine found in cacao beans which can inhibit adenosine receptor A1 (AR1) signaling.More

Diclofenac sodium

CAS No: 15307-79-6

Formula: C14H11Cl2NO2.Na

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Diclofenac Sodium is a potent and nonselective anti-inflammatory agent, acts as a COX inhibitor, with IC50s of 4 nM, 1.3 nM for human COX-1 and COX-2 in CHO cells, and 5.1, 0.84 μM for ovine COX-1 and COX-2, respectively. More

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Amlexanox

CAS No: 68302-57-8

Formula: C16H14N2O4

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

AmLexanox is a specific inhibitor of IKKε and TBK1, and inhibits the IKKε and TBK1 activity determined by MBP phosphorylation with an IC50 of approximately 1-2 μM.More

Trimebutine maleate

CAS No: 34140-59-5

Formula: C22H29NO5.C4H4O4

Categories: Active Pharmaceutical Ingredients > Anesthetic Agents

Trimebutine maleate is a drug with antimuscarinic and weak mu opioid agonist effects.Target: Opioid ReceptorTrimebutine is an agonist of peripheral mu, kappa and delta opiate receptors, used as spasmolytic agent for treatment of both acute and chronic abdominal pain [1]. The major product from drug metabolism of trimebutine in human beings is nor-trimebutine, which comes from removal of one of the methyl groups attached to nitrogen. Trimebutine exerts its effects in part due to causing aMore

Iopromide

CAS No: 73334-07-3

Formula: C18H24I3N3O8

Categories: Active Pharmaceutical Ingredients > Diagnostic Agents

Iopromide is a water-soluble, non-ionic, monomeric, low-osmolar, iodine-based contrast medium for intravascular administration.More

Streptogramin

CAS No: 11006-76-1

Formula:

Categories: Active Pharmaceutical Ingredients > Feed Additive

Virginiamycin complex is defined as a mixture of 75% ostreogrycin A (virginiamycin M1) and 25% virginiamycin S1, together with the less abundant S analogues. As the two major components have quite different solubilities, these proportions are not readily achieved or used. BioAustralis has isolated and re-combined the individual components to provide the defined components of virginiamycin complex. The composition of the complex is important as Virginiamycin S1 acts a synergist, binding to the coMore

Adenine

CAS No: 73-24-5

Formula: C5H5N5

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Adenine is a purine derivative and a nucleobase with a variety of roles in biochemistry. Target: Nucleoside antimetabolite/analogAdenine is a nucleobase with a variety of roles in biochemistry including cellular respiration, in the form of both the energy-rich adenosine triphosphate (ATP) and the cofactors nicotinamide adenine dinucleotide (NAD) and flavin adenine dinucleotide (FAD), andprotein synthesis, as a chemical component of DNA and RNA. The shape of adenine is complementary to eiMore

(±)-Camphor

CAS No: 76-22-2

Formula: C10H16O

Categories: Active Pharmaceutical Ingredients > Plasticiser

Camphor is a white crystalline solid with a strong, characteristic odor. It has the molecular formula C₁₀H₁₆O, a melting point of about 175°C, and is slightly soluble in water but highly soluble in alcohol and organic solvents. It should be stored in a cool, dry place away from heat sources.More

Ibuprofen

CAS No: 15687-27-1

Formula: C13H18O2

Categories: Active Pharmaceutical Ingredients > Flocculant

Colourless, Crystalline SolidChEBI: A monocarboxylic acid that is propionic acid in which one of the hydrogens at position 2 is substituted by a 4-(2-methylpropyl)phenyl group.Ibuprofen is a white, crystalline anti-infl ammatory drug used in numerous medications. It is the active ingredient marketed under various trade names including Advil, Motrin, and Nurofen. Ibuprofen is a nonsteroidal anti-infl ammatory drug (NSAID) used as a pain reliever (analgesic), fever reducer (antipyretic), and inflMore

Bortezomib

CAS No: 179324-69-7

Formula: C19H25BN4O4

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Yellow SolidChEBI: L-Phenylalaninamide substituted at the amide nitrogen by a 1-(dihydroxyboranyl)-3-methylbutyl group and at Nalpha by a pyrazin-2-ylcarbonyl group. It is a dipeptidyl boronic acid tha reversibly inhibits the 26S proteasome.Bortezomib, a modified dipeptidyl boronic acid, is a therapeutic proteasome inhibitors used for the treatment of cancers. It is indicated for the treatment of relapsed multiple myeloma and mantle cell lymphoma. It is capable of inhibiting the mammalian 26SMore

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!
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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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