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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

Rabeprazole sodium

CAS No: 117976-90-6

Formula: C18H21N3O3S.Na

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Rebeprazole sodium is White Crystalline Solid Rebeprazole sodium was launched as Pariet in Japan, its first market, for the treatment of peptic ulcers including gastric and duodenal ulcers. From 4-chloro- 2,3-dimethylpyridine N-oxide, a six step synthesis allows access to the basic skeleton after successive condensations. Rabeprazole, a structural analog of Omeprazole, the first compound to have been marketed in this class up to now, is reported to be a more potent inhibitor of gastric H+/K+-aMore

2,6-Dimethylpiperidine

CAS No: 504-03-0

Formula: C7H15N

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Nanofin is neuropathic blocker, with antihypertensive effect, used for mild to moderate hypertension. More

Fluphenazine

CAS No: 69-23-8

Formula: C22H26F3N3OS

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

ChEBI: A member of the class of phenothiazines that is 10H-phenothiazine having a trifluoromethyl subsitituent at the 2-position and a 3-[4-(2-hydroxyethyl)piperazin-1-yl]propyl group at the N-10 position.More

Disodium phosphonomycin

CAS No: 26016-99-9

Formula: C3H8NaO4P

Categories: Active Pharmaceutical Ingredients > Antibiotics

Fosfomycin sodium (MK-0955 sodium) is a blood-brain barrier penetrating, broad-spectrum antibiotic by irreversibly inhibiting an early stage in cell wall synthesis. Fosfomycin sodium shows both in vivo and in vitro activity against a wide range of bacteria, including multidrug-resistant (MDR), extensively drug-resistant (XDR), and pan-drug-resistant (PDR) bacteria[1]. More

Isoconazole

CAS No: 27523-40-6

Formula: C18H14Cl4N2O

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

White or almost white powder.More

Nefopam

CAS No: 13669-70-0

Formula: C17H19NO

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Analgesic.More

Moroxydine

CAS No: 3731-59-7

Formula: C6H13N5O

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

antiviralMore

1109 Active Pharmaceutical Ingredients Suppliers

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Ethionamide

CAS No: 536-33-4

Formula: C8H10N2S

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Ethionamide(2-ethylthioisonicotinamide) is an antibiotic used in the treatment of tuberculosis.Target: AntibacterialEthionamide is a second-line antitubercular agent that inhibits mycolic acid synthesis. It also may be used for treatment of leprosy. Ethionamide is a prodrug. It is activated by the enzyme EthA, a mono-oxygenase in Mycobacterium tuberculosis, and binds NAD+ to form an adduct which inhibits InhA in the same way as isoniazid. Expression of the ethA gene is controlled by EthRMore

Metoprolol succinate

CAS No: 98418-47-4

Formula: C15H25NO3.1/2C4H6O4

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Metoprolol Succinate (Toprol XL) is a selective β1 receptor blocker used in treatment of several diseases of the cardiovascular system, especially hypertension.IC50 value:Target: β1 receptor More

Diphenidol

CAS No: 972-02-1

Formula: C21H27NO

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

ChEBI: A tertiary alcohol that is butan-1-ol substituted by two phenyl groups at position 1 and a piperidin-1-yl group at position 4.More

Clindamycin palmitate hydrochloride

CAS No: 25507-04-4

Formula: C34H63ClN2O6S.ClH

Categories: Active Pharmaceutical Ingredients > Antibiotics

White SolidMore

D-Camphoric acid

CAS No: 124-83-4

Formula: C10H16O4

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

(1R,3S)-Camphoric Acid is used primarily as a reagent in syntheses of crystalline structures. It is used in the preparation of polymeric transition metal dipyridylamine D-camphorate complexes.More

Epothilone B

CAS No: 152044-54-7

Formula: C27H41NO6S

Categories: Active Pharmaceutical Ingredients > Antibiotics

Epothilone B is a microtubule stabilizer with a Ki of 0.71μM. It acts by binding to the αβ-tubulin heterodimer subunit which causes decreasing of αβ-tubulin dissociation. 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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