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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 380 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

Chondroitin 4-sulfate

CAS No: 24967-93-9

Formula: H2O4S.Unspecified

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

ChEBI: A chondroitin sulfate in which the site of sulfation is carbon 4 of the N-acetylgalactosamine (GalNAc) sugar.More

Ketotifen fumarate

CAS No: 34580-14-8

Formula: C19H19NOS.C4H4O4

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

Ketotifen (fumarate) is a second-generation noncompetitive H1-antihistamine and mast cell stabilizer, which is used to prevent asthma attacks.Target: Histamine Receptor Ketotifen is a second-generation noncompetitive H1-antihistamine and mast cell stabilizer. It is most commonly sold as a salt of fumaric acid,ketotifen fumarate, and is available in two forms. In its ophthalmic form, it is used to treat allergic conjunctivitis, or the itchy red eyes caused by allergies. In its oral form,More

Hydroquinone

CAS No: 123-31-9

Formula: C6H6O2

Categories: Active Pharmaceutical Ingredients > Bleaching Agent

white needle-like crystals or crystalline powder Hydroquinone, a colorless, hexagonal prism, has been reported to be a good antimitotic and tumor-inhibiting agent. It is a reducing agent used in a photographic developer, which polymerizes in the presence of oxidizing agents. In the manufacturing industry it may occur include bacteriostatic agent, drug, fur processing, motor fuel, paint, organic chemicals, plastics, stone coating, and styrene monomers.ChEBI: A benzenediol comprising benzeneMore

Chondroitin sulfate

CAS No: 9007-28-7

Formula: H2O4S.xUnspecified

Categories: Active Pharmaceutical Ingredients > Antistatic

Chondroitin sulfate, one of five classes of glycosaminoglycans, has been widely used in the treatment of osteoarthritis. Chondroitin sulfate reduces inflammation mediators and the apoptotic process and is able to reduce protein production of inflammatory cytokines, iNOS and MMPs. More

Trichloroisocyanuric acid

CAS No: 87-90-1

Formula: C3Cl3N3O3

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

TCCA has an excellent bactericidal property and is a new generation of broad-spectrum, high efficiency, low-toxicity fungicides, bleacher and anti-shrinking agent. It is mainly used in the disinfection and sterilization of drinking water, industrial water recycling, swimming pool, restaurants, hotels, public places, homes, hospitals, eggs and prevention of fish diseases. It has a killing effect on almost all fungi, bacteria, viruses, and spores. It is safe and convenient to use. This product caMore

Ivermectin

CAS No: 70288-86-7

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Ivermectin is a widely used antiparasitic agent in human and veterinary medicine. It is a positive allosteric effector of P2X4 and the α7 neuronal nicotinic acetylcholine receptor (nAChRs). More

Rutin

CAS No: 153-18-4

Formula: C27H30O16

Categories: Active Pharmaceutical Ingredients > Antioxidant Ingredient

Pale-Yellow Crystalline SolidChEBI: A rutinoside that is quercetin with the hydroxy group at position C-3 substituted with glucose and rhamnose sugar groups.More

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Chlorogenic acid

CAS No: 327-97-9

Formula: C16H18O9

Categories: Active Pharmaceutical Ingredients > Antioxidant Ingredient

Chlorogenic acid is a major phenolic compound in coffee and tea. It plays several important and therapeutic roles such as antioxidant activity, antibacterial, hepatoprotective, cardioprotective, anti-inflammatory, antipyretic, neuroprotective, anti-obesity, antiviral, anti-microbial, anti-hypertension. More

Trichloroethylene

CAS No: 79-01-6

Formula: C2HCl3

Categories: Active Pharmaceutical Ingredients > Anesthetic Agents

Trichloroethylene (TCE)  is a clear, colorless, nonflammable (at room temperature) stable toxic liquid with chloroform-like odor (ATSDR, 2011). It is slightly soluble in water, is soluble in greases and common organic solvents, and boils at 87°C (190 F).
On contact with air, it slowly decomposes and forms phosgene, hydrogen chloride, and dichloroacetyl chloride. Trichloroethylene in contact with water becomes corrosive and forms dichloroacetic acid and hydrochloric acid. It is soluble in More

Doxorubicin hydrochloride

CAS No: 25316-40-9

Formula: C27H29NO11.ClH

Categories: Active Pharmaceutical Ingredients > Antineoplastics

Doxorubicin hydrochloride is a cytotoxic anthracycline antibiotic for the treatment of multiple cancers. The possible mechanisms by which doxorubicin acts in the cancer cell are intercalation into DNA and disruption of topoisomerase-II-mediated DNA repair. More

Diphenhydramine hydrochloride

CAS No: 147-24-0

Formula: C17H21NO.ClH

Categories: Active Pharmaceutical Ingredients > Hair Conditioning

White or almost white, crystalline powder.ChEBI: The hydrochloride salt of diphenhydramine.Diphenhydramine hydrochloride is an antihistamine drug having the chemical name 2-(Diphenylmethoxy)- N,N-dimethylethylamine hydrochloride. It occurs as a white, crystalline powder, is freely soluble in water and alcohol and has a molecular weight of 291.82.More

Barite

CAS No: 13462-86-7

Formula: Ba.H2O4S

Categories: Active Pharmaceutical Ingredients > Diagnostic Agents

solidbarium sulphate: An insolublewhite solid, BaSO4, that occurs naturallyas the mineral barytes (orheavy spar) and can be prepared as aprecipitate by adding sulphuric acidto barium chloride solution; r.d. 4.50;m.p. 1580°C. The rhombic formchanges to a monoclinic form at1149°C. It is used as a raw materialfor making other barium salts, as apigment extender in surface coatingmaterials (called blanc fixe), and in the glass and rubber industries.More

Hantzsch ester

CAS No: 1149-23-1

Formula: C13H19NO4

Categories: Active Pharmaceutical Ingredients > Feed Additive

Used as a feed additive; it is a novel multifunctional feed additive that can significantly promote the growth of livestock, poultry, fish, shrimp, cattle, sheep and other animals, and improve production and reproduction performance; as a hydrogen source, it is used in organic catalytic reducing amines Chemical reaction and conjugate reduction reaction.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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