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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 740 qualified manufacturers and 369 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.
4829 Active Pharmaceutical Ingredients items

Rasagiline

CAS No: 136236-51-6

Formula: C12H13N

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Rasagiline(AGN1135;TVP1012) is a new MAO-B inhibitor for the treatment of idiopathic Parkinson's disease. Target: Monoamine Oxidase (MAO)-BRasagiline (N-propargyl-1-(R)-aminoindan) is a novel, highly potent irreversible monoamine oxidase (MAO)-B inhibitor, anti-Parkinsonian drug. Rasagiline is effective as monotherapy or adjunct to L-Dopa for patients with early and late Parkinson's disease (PD) [1]. Rasagiline inhibits MAO-B more potently than selegiline and has the advantage of once-daMore

Argatroban

CAS No: 141396-28-3

Formula: C23H38N6O6S

Categories: Active Pharmaceutical Ingredients > Blood System Drugs

Argatroban monohydrate is a direct, selective thrombin inhibitor.Target: ThrombinArgatroban may have a complementary effect for preventing thrombus formation without aggravating bleeding tendency because of its monotarget specificity to thrombin. Administration (0.5 to 2 micrograms/kg/min) of argatroban is a safe anticoagulant for left heart bypass in repairs of traumatic aortic rupture associated with multiple organ injuries [1]. Argatroban, as compared with heparin, appears to enhanceMore

Clonidine

CAS No: 4205-90-7

Formula: C9H9Cl2N3

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Clonidine is an alpha 2-adrenergic agonist which is used extensively in anesthesia research[1]. More

Coluracetam

CAS No: 135463-81-9

Formula: C19H23N3O3

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Coluracetam(MKC-231) is a new choline uptake enhancer.IC50 value:Target:in vitro: MKC-231 (10(-10)-10(-6) moll) significantly increased high affinity choline uptake (HACU) when it was incubated with the hippocampal synaptosomes of ethylcholine mustard aziridinium ion (AF64A) treated rats, but not of normal rats. MKC-231 did not affect the AChE activity, [3H]- quinuclidinyl benzilate binding, and [3H]-pirenzepine binding [1].in vivo: Oral administration of MKC-231 (1-10 mg/kg) significantMore

21R-Argatroban

CAS No: 121785-71-5

Formula: C23H36N6O5S

Categories: Active Pharmaceutical Ingredients > Blood System Drugs

The 21R-stereoisomerMore

1109 Active Pharmaceutical Ingredients Suppliers

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Ornidazole

CAS No: 16773-42-5

Formula: C7H10ClN3O3

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Crystalline SolidChEBI: A C-nitro compound that is 5-nitroimidazole in which the hydrogens at positions 1 and 2 are replaced by 3-chloro-2-hydroxypropyl and methyl groups, respectively. It is used in the treatment of susceptible protozoal infections and for thetreatment of anaerobic bacterial infections.Ornidazole is prescribed for the treatment of certain protozoan infections, post-surgery infections and bacterial infections. The action of this drug is based on its potential to inhibit the dMore

Erythromycin ethyl succinate

CAS No: 1264-62-6

Formula: C43H75NO16

Categories: Active Pharmaceutical Ingredients > Antibiotics

ERYTHROMYCIN ETHYLSUCCINATE is crystals Erythromycin ethylsuccinate (EES, Pediamycin, EryPed) isthe ethylsuccinate mixed ester of erythromycin in which the2'-hydroxyl group of the desosamine is esterified. It isabsorbed as the ester and hydrolyzed slowly in the body toform erythromycin. It is somewhat acid labile, and itsabsorption is enhanced by the presence of food. The ester isinsoluble in water but soluble in alcohol and ether.More

Bendamustine hydrochloride

CAS No: 3543-75-7

Formula: C16H21Cl2N3O2.ClH

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Bendamustine hydrochloride is a DNA cross-linking agent that causes DNA breaks, with alkylating and antimetabolite properties. More

cefprozil

CAS No: 121123-17-9

Formula: C18H21N3O6S

Categories: Active Pharmaceutical Ingredients > Antibiotics

Cefprozil Monohydrate (Cefzil) is a second-generation cephalosporin type antibiotic.Target: AntibacterialCefprozil, sometimes spelled cefproxil and marketed under the trade name Cefzil, is a second-generation cephalosporin type antibiotic. In Europe it is marketed using the trade names Procef and Cronocef. It can be used to treat bronchitis, ear infections, skin infections, and other bacterial infections. It comes as a tablet and as a liquid suspension. From Wikipedia. More

Histamine

CAS No: 51-45-6

Formula: C5H9N3

Categories: Active Pharmaceutical Ingredients > Diagnostic Agents

Histamine is an organic nitrogenous compound involved in local immune responses as well as regulating physiological function in the gut and acting as a neurotransmitter.More

Nintedanib

CAS No: 656247-17-5

Formula: C31H33N5O4

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

BIBF 1120 is a potent triple angiokinase inhibitor for VEGFR1/2/3, FGFR1/2/3 and PDGFRα/β with IC50s of 34 nM/13 nM/13 nM, 69 nM/37 nM/108 nM and 59 nM/65 nM, respectively. More

Loxoprofen

CAS No: 68767-14-6

Formula: C15H18O3

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Loxoprofen is a non-steroidal anti-inflammatory drug.Target: COXLoxoprofen is a non-steroidal anti-inflammatory drug in the propionic acid derivatives group, which also includes ibuprofen and naproxen among others. Loxoprofen is a non-selective cyclooxygenase inhibitor, and works by reducing the synthesis of prostaglandins from arachidonic acid. More

Epinastine

CAS No: 80012-43-7

Formula: C16H15N3

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

Epinastine(WAL801) is an antihistamine and mast cell stabilizer that is used in eye drops to treat allergic conjunctivitis.Target: Histamine ReceptorEpinastine shows a high affinity to H1-receptors in receptor binding studies in the guinea pig ileum. Epinastine inhibits histamine-induced reactions in the skin or the lung of rats, dogs and guinea pigs [1]. Epinastine is able to displace specific [3H]NC-5Z binding at low concentrations in the locust nervous tissue. Epinastine binds to theMore

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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