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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

Alosetron

CAS No: 122852-42-0

Formula: C17H18N4O

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

crystalline powderChEBI: A pyrido[4,3-b]indole compound having a 5-methyl-1H-imidazol-4-ylmethyl group at the 2-position.More

Rofecoxib

CAS No: 162011-90-7

Formula: C17H14O4S

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Off-White (Pale Yellow) Crystalline PowderChEBI: A butenolide that is furan-2(5H)-one that is substituted by a phenyl group at position 3 and by a p-(methylsulfonyl)phenyl group at position 4. A selective cyclooxygenase 2 inhibitor, it was used from 1999 to 2004 for the tr atment of ostoarthritis, but was withdrawn following concerns about an associated increased risk of heart attack and stroke.Rofecoxib ts a non-steroidal anti-inflammatory drug (NSAID) launched in Mexico, its first market, fMore

Diminazene

CAS No: 536-71-0

Formula: C14H15N7

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

ChEBI: A triazene derivative that is triazene in which each of the terminal nitrogens is substituted by a 4-carbamimidoylphenyl group.More

Oxaprozin

CAS No: 21256-18-8

Formula: C18H15NO3

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Oxaprozin is an inhibitor of both COX-1 and COX-2 with IC50s of 2.2 μM and 36 μM for human platelet COX-1 and IL-1-stimulated human synovial cell COX-2, respectively. Oxaprozin also inhibits the activation of NF-κB. More

Octyl gallate

CAS No: 1034-01-1

Formula: C15H22O5

Categories: Active Pharmaceutical Ingredients > Antioxidant Ingredient

White powderChEBI: A gallate ester obtained by condensation of the carboxy group of gallic acid with the hydroxy group of octanol.Octyl gallate is the ester formed by 1-octanol and gallic acid. It can be used as an antioxidant and preservative to be supplemented to the food. It has been demonstrated to be an effective fungicide being capable of inhibiting the growth of S. cerevisiae and Z. bailii as it can inhibit the fluidity of the cell membrane through acting as a nonionic surface-active ageMore

Naltrexone hydrochloride

CAS No: 16676-29-2

Formula: C20H23NO4.ClH

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

White Crystalline PowderNaltrexone hydrochloride is a potent, long-acting, orally-effective narcotic antagonist useful in the management of narcotic addiction.More

Itopride hydrochloride

CAS No: 122892-31-3

Formula: C20H26N2O4.ClH

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Crystalline SolidItopride, a gastroprokinetic benzamide derivative was launched in Japan for the relief of gastrointestinal symptoms in patients with chronic gastritis. ltopride is a dopamine D2-receptor antagonist that stimulates acetylcholine (Ach) release on the postganglionic cholinergic neurons to cause Ach accumulation at muscarinic receptors and, therefore, enhances Ach-induced gastric contractions. More

Acetylcholine chloride

CAS No: 60-31-1

Formula: C7H16NO2.Cl

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Acetylcholine is a neurotransmitter that can induce the opening of calcium channels. Target: Calcium Channel; nAChR; mAChRAcetylcholine in vertebrates is the major transmitter at neuromuscular junctions, autonomic ganglia, parasympathetic effector junctions, a subset of sympathetic effector junctions, and at many sites in the central nervous system. It is generally not used as an administered drug because it is broken down very rapidly by cholinesterases, but it is useful in some ophthalMore

Sodium fluoride

CAS No: 7681-49-4

Formula: FNa

Categories: Active Pharmaceutical Ingredients > Antiplaque

Sodium Fluoride is an inorganic salt of fluoride, used as an insecticide. It is also used to fluorinate water supplies, as a wood preservative, in cleaning compounds, manufacture of glass, and for many other uses. More

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Guanfacine

CAS No: 29110-47-2

Formula: C9H9Cl2N3O

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Guanfacine is a selective α2A receptor agonist.Target: α2A ReceptorGuanfacine is a sympatholytic. It is a selective α2A receptor agonist. These receptors are concentrated heavily in the prefrontal cortex and the locus coeruleus, with the potential to improve attention resulting from interaction with receptors in the former. Guanfacine lowers both systolic and diastolic blood pressure by activating the central nervous system α2A norepinephrine autoreceptors, which results in reduced peripMore

Sulfaquinoxaline

CAS No: 59-40-5

Formula: C14H12N4O2S

Categories: Active Pharmaceutical Ingredients > Amides

Sulfaquinoxaline is an antimicrobial for veterinary use, with activity against a broad spectrum of Gram-negative and Gram-positive bacteria. Sulfaquinoxaline is used to prevent coccidiosis and bacterial infections[1][2]. More

Pyridoxamine

CAS No: 85-87-0

Formula: C8H12N2O2

Categories: Active Pharmaceutical Ingredients > Vitamins and Minerals Medicines

Pyridoxylamine is an advanced glycation end production (AGEs) and lipoxidation end products (ALEs) inhibitor, to protect against diabetes-induced retinal vascular lesions. More

Amodiaquine

CAS No: 86-42-0

Formula: C20H22ClN3O

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Cyrstalline SolidMore

Enduracidin

CAS No: 11115-82-5

Formula:

Categories: Active Pharmaceutical Ingredients > Antibiotics

Enduracidin is a fermentation-derived cyclodepsipeptide antibiotic produced by Streptomyces fungicidicus. Enduracidin consists of two components: Enduracidin A and Enduracidin B.Enduracidin is used as a feed additive for animals.More

Amorolfine hydrochloride

CAS No: 78613-38-4

Formula: C21H35NO.ClH

Categories: Active Pharmaceutical Ingredients > Antibiotics

Amorolfine hydrochloride is a antifungal reagent.Target: AntifungalAmorolfine is an antifungal showing activity against fungi pathogenic to plants, animals and humans. Amorolfine possesses a broad antifungal spectrum including dermatophytes, yeasts, dimorphic fungi and moulds and is not only fungistatic but fungicidal against most species [1]. At 0.2, 2 and 5 micrograms/ml amorolfine did not have any significant inhibitory or enhancing effect on phagocytosis whether following simultaneouMore

Nifuratel

CAS No: 4936-47-4

Formula: C10H11N3O5S

Categories: Active Pharmaceutical Ingredients > Nitro Compounds

Nifuratel(NF 113, SAP 113) is a broad antibacterial spectrum agent, which is used as an antibacterial, antifungal, and antiprotozoal (Trichomonas).IC50 Value: 0.125-1 μg/mL(MIC, A. vaginae) [1]Target: Antibacterial; Antiprotozoal in vitro: In vitro, nifuratel is able to inhibit the growth of A. vaginae, with a MIC range of 0.125-1 μg/mL; it is active against G. vaginalis and does not affect lactobacilli [1].in vivo: Patients were randomized to receive a 2-week course of bismuth subcitratMore

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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