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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

Pralidoxime iodide

CAS No: 94-63-3

Formula: C7H9N2O.I

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

Pralidoxime iodide is a reactivator of acetylcholinesterase (AChE). Pralidoxime iodide reactivates nerve agent, which inhibits AChE via direct nucleophilic attack by the oxime moiety on the phosphorus center of the bound nerve agent. Pralidoxime iodide is an antidote for organophosphate poisoning[1][2]. More

Raltegravir

CAS No: 518048-05-0

Formula: C20H21FN6O5

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Raltegravir is a potent integrase (IN) inhibitor, used to treat HIV infection. More

Terazosin

CAS No: 63590-64-7

Formula: C19H25N5O4

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Terazosin is a selective alpha1-antagonist used for treatment of symptoms of benign prostatic hyperplasia (BPH).Target: Alpha-1 Adrenergic ReceptorTerazosin is selective for alpha 1A-adrenoceptors which appear to dominate in the human prostate; the therapeutic relevance of this selectivity remains to be assessed in clinical studies [1]. Administration of terazosin 1 mg orally for 28 d. Terazosin initially shifted the dose-response curve of phenylephrine to the right, with a significant iMore

Cefuroxime axetil

CAS No: 64544-07-6

Formula: C20H22N4O10S

Categories: Active Pharmaceutical Ingredients > Antibiotics

Cefuroxime Axetil, a prodrug of the cephalosporin cefuroxime and an oarl broad spectrum antibiotic, inhibits several gram-positive and gram-negative organisms, including those most frequently associated with various common community-acquired infections[1]. More

Salinomycin

CAS No: 53003-10-4

Formula: C42H70O11

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Salinomycin is an anticoccidial drug with potent anti-bacterial activity and an novel anticancer agent targeting human cancer stem cells. More

Diprophylline

CAS No: 479-18-5

Formula: C10H14N4O4

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Dyphylline acts as an adenosine receptor antagonist and phosphodiesterase inhibitor, which is used in the treatment of respiratory disorders.Target: Adenosine Receptor; PDEDyphylline (trade names Dilor, Lufyllin), also known as diprophylline, is a xanthine derivative with bronchodilator and vasodilator effects. It is used in the treatment of respiratory disorders like asthma, cardiac dyspnea, and bronchitis. It acts as an adenosine receptor antagonist and phosphodiesterase inhibitor. More

Bupropion

CAS No: 34911-55-2

Formula: C13H18ClNO

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

vasoconstrictor;non-selective agonist of all adrenergic receptorsMore

Magnesium ascorbyl phosphate

CAS No: 113170-55-1

Formula: C6H9O9P.3/2Mg

Categories: Active Pharmaceutical Ingredients > Antioxidant Ingredient

L-Ascorbic acid 2-phosphate magnesium (2-Phospho-L-ascorbic acid magnesium) is a long-acting vitamin C derivative that can stimulate collagen formation and expression[1]. L-Ascorbic acid 2-phosphate magnesium (2-Phospho-L-ascorbic acid magnesium) can be used as a culture medium supplement for the osteogenic differentiation of human adipose stem cells (hASCs). L-Ascorbic acid 2-phosphate magnesium (2-Phospho-L-ascorbic acid magnesium) increases alkaline phosphatase (ALP) activity and exprMore

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Doramectin

CAS No: 117704-25-3

Formula: C50H74O14

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

So the effect of doramectin to drive and to kill the parasites is stronger than ivermectin, and it can be effective to prevent the parasite reinfection.More

Butenafine hydrochloride

CAS No: 101827-46-7

Formula: C23H27N.ClH

Categories: Active Pharmaceutical Ingredients > Amides

Butenafine hydrochloride is a synthetic benzylamine antifungal, works by inhibiting the synthesis of sterols by inhibiting squalene epoxidase.IC50 Value: Target: Antifungal; squalene epoxidaseButenafine Hydrochloride, a benzylamine derivative, is an antifungal which is used to control dermal fungal infections such as athletes foot and ring worm. Butenafine Hydrochloride is squalene epoxidase inhibitor, inhibits the synthesis of ergosterol needed in fungal cell membranes. The drug has excMore

Tropisetron

CAS No: 89565-68-4

Formula: C17H20N2O2

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

ChEBI: An indolyl carboxylate ester obtained by formal condensation of the carboxy group of indole-3-carboxylic acid with the hydroxy group of tropine.More

Dichlorvos

CAS No: 62-73-7

Formula: C4H7Cl2O4P

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Dichlorvos is available as an oily colourless to amber liquid with an aromatic chemical odour. It is slightly soluble in water but soluble in kerosene, ethanol, chloroform, and acetone and miscible with alcohol, aromatic and chlorinated hydrocarbon solvents, aerosol propellants, and other non-polar solvents. Dichlorvos in contact with strong acids or alkalis undergoes decomposition and releases hazardous products toxic gases and vapours such as phosphorus, chlorinated oxides, and carbon monoxidMore

(+)-Evodiamine

CAS No: 518-17-2

Formula: C19H17N3O

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Evodiamine is an alkaloid isolated from the fruit of Evodia rutaecarpa Bentham with diverse biological activities including anti-inflammatory, anti-obesity, and antitumor. More

Levocetirizine dihydrochloride

CAS No: 130018-87-0

Formula: C21H25ClN2O3.2ClH

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Levocetirizine dihydrochloride,(R)-[2-[4-[(4-chlorophenyl) phenylmethyl]-1-piperazinyl] ethoxy] acetic acid dihydrochloride, (Xyzal) is awhite, crystalline powder and is water soluble. ThisR-enantiomer is has a 30-fold higher affinity than the S-enantiomer,and dissociates more slowly from H1-receptors.Pharmacologically, it displays the same receptor and CNSselecitivity profile as the racemate, cetirizine,and thus the same therapeutic advantages.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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