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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

Piracetam

CAS No: 7491-74-9

Formula: C6H10N2O2

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Piracetam is a cyclic derivative of the neurotransmitter gamma-aminobutyric acid (GABA), used in treatment of a wide range of cognitive disorders.Target: OthersPiracetam is able to significantly decrease the fusogenic and destabilising effect of Abeta 29-42, in a concentration-dependent manner. Preincubation of piracetam, at a piracetam/peptide ratio of 960, during 20 min before the addition of Abeta 29-42 prevents almost completely the mixture of the two fluorescent probes. PreincubatioMore

LINCOMYCIN HYDROCHLORIDE

CAS No: 17017-22-0

Formula: C18H34N2O6S

Categories: Active Pharmaceutical Ingredients > Antibiotics

An epimer of Lincomycin (L466200); a 6-amino, 6-deoxy-octopyraninose with strong antibiotic activity. A less potent bactericidal than its (7R)-epimer.More

Baclofen

CAS No: 1134-47-0

Formula: C10H12ClNO2

Categories: Active Pharmaceutical Ingredients > Anesthetic Agents

White powder. Melting point: 206-208 °C. Dissolve using hot water, the aqueous solution was neutral, almost insoluble in alcohol, ether, acetone and other organic solvents, easily soluble in acidic, alkaline aqueous solution. The melting point of Chlorobenzene aminobutyric acid hydrochloride: 179-181 °C. Off-White SolidChEBI: A monocarboxylic acid that is butanoic acid substituted by an amino group at position 4 and a 4-chlorophenyl group at position 3. It acts as a central nervous system depMore

Cytarabine

CAS No: 147-94-4

Formula: C9H13N3O5

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Cytarabine is a chemotherapy drug used to treat acute myeloid leukaemia, acting by inhibiting DNA synthesis with an IC50 of 16 nM. More

CeftazidiMe

CAS No: 72558-82-8

Formula: C22H22N6O7S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Ceftazidime(GR20263) is an antibiotic useful for the treatment of a number of bacterial infections.Target: AntibacterialCeftazidime is an antibiotic useful for the treatment of a number of bacterial infections. It is a third-generation cephalosporin. As with all antibiotics, ceftazidime is not used to treat viral infections. Cephalosporins have activity against Gram-positive and Gram-negative bacteria. The balance of activity tips toward Gram-positive organisms for earlier generations; lMore

Domperidone

CAS No: 57808-66-9

Formula: C22H24ClN5O2

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Domperidone is a dopamine blocker and an antidopaminergic reagent.Target: Dopamine ReceptorDomperidone is a useful alternative to metoclopramide for treatment of gastroparesis due to better tolerability. Effectiveness and side-effects from domperidone may be influenced by patient-related factors including polymorphisms in genes encoding drug-metabolizing enzymes, drug transporters, and domperidone targets [1]. Domperidone is a dopamine D(2) receptor antagonist, which has been used as antMore

Memantine

CAS No: 19982-08-2

Formula: C12H21N

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

ChEBI: A primary aliphatic amine that is the 3,5-dimethyl derivative of 1-aminoadamantane. A low to moderate affinity uncompetitive (open-channel); NMDA receptor antagonist which binds preferentially to the NMDA receptor-operated cation channels.More

Tamsulosin

CAS No: 106133-20-4

Formula: C20H28N2O5S

Categories: Active Pharmaceutical Ingredients > Urinary System Drugs

Tamsulosin hydrochloride is the first in the class of potent and selective α- 1Aadrenoceptor antagonists introduced for the treatment of dysuria associated with benign prostatic hypertrophy (BPH). In a clinical study, significant improvement in irritative and obstructive symptoms has been reported for tamsulosin treated patients with BPH. ln vitro studies in human penile erectile tissue and vas deferens indicated that tamsulosin may be ofuse in treating male sexual dysfunction.Tamsulosin (FloMore

(+)-Camptothecin

CAS No: 7689-03-4

Formula: C20H16N2O4

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Campathecin is a potent DNA enzyme topoisomerase I inhibitor, with an IC50 of 679 nM.More

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Toltrazuril

CAS No: 69004-03-1

Formula: C18H14F3N3O4S

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Toltrazuril is an antiprotozoal agent that acts upon Coccidia parasites.Target: AntiparasiticToltrazuril is an antiprotozoal agent that acts upon Coccidia parasites. Toltrazuril induces changes in the fine structure of coccidian development stages that are mainly due to a swelling of the endoplasmatic reticulum and of the Golgi apparatus and to abnormalities in the peri-nuclear space, disturbance in nuclear division. Treated with toltrazuril showed a considerably lower mean opg to that oMore

(+)-Chlorpheniramine

CAS No: 25523-97-1

Formula: C16H19ClN2

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

Antihistaminic.More

Dopamine

CAS No: 51-61-6

Formula: C8H11NO2

Categories: Active Pharmaceutical Ingredients > Amides

dopamine: A catecholamine thatis a precursor in the synthesis of noradrenalineand adrenaline. It alsofunctions as a neurotransmitter inthe brain.More

Linoleic acid

CAS No: 60-33-3

Formula: C18H32O2

Categories: Active Pharmaceutical Ingredients > Antistatic

Liquid at room temperature, colorless Linoleic acid occurs as a colorless to light-yellow-colored oil.More

Fenbendazole

CAS No: 43210-67-9

Formula: C15H13N3O2S

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Fenbendazole is a broad spectrum benzimidazole anthelmintic used against gastrointestinal parasites.Target: AntiparasiticFenbendazole is a broad spectrum benzimidazole anthelmintic used against gastrointestinal parasites including: giardia, roundworms, hookworms, whipworms, the taenia species of tapeworms(It is effective against the Taenia species of tapeworm but not against the common tapeworm, Dipylidium caninum.), pinworms, aelurostrongylus, paragonimiasis, strongyles and strongyloideMore

Prasugrel

CAS No: 150322-43-3

Formula: C20H20FNO3S

Categories: Active Pharmaceutical Ingredients > Blood System Drugs

Prasugrel is a third-generation thienopyridine that has been developed and launched for the prevention of atherothrombotic events in patients with ACS or following PCI. While the second-generation agent clopidogrel was an improvement over the first-generation ticlopidine, which suffered from gastrointestinal adverse effects and the risk of neutropenia with prolonged use, its delayed onset of action and considerable interpatient variability prompted the search for the next-generation thienMore

Menadione

CAS No: 58-27-5

Formula: C11H8O2

Categories: Active Pharmaceutical Ingredients > Fragrance Ingredient

Menadione, a synthetic naphthoquinone, can be converted to active vitamin K2 in vivo.Target: OthersMenadione (Vitamin K3) is a synthetic analogue of of 1,4-naphthoquinone with a methyl group in the 2-position. Menadione is used as a phosphatase inhibitor and an inhibitor of mitochondrial DNA polymerase γ (pol γ). Menadione can be used as an oxidative injury (free radical generator) inducing agent [1].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!
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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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