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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 744 qualified manufacturers and 391 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.
4851 Active Pharmaceutical Ingredients items

Mitoxantrone

CAS No: 65271-80-9

Formula: C22H28N4O6

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Mitoxantrone is a topoisomerase II inhibitor; also inhibits protein kinase C (PKC) activity with an IC50 of 8.5 μM. More

Podophyllotoxin

CAS No: 518-28-5

Formula: C22H22O8

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Podophyllotoxin is a potent inhibitor of microtubule assembly and DNA topoisomerase II.IC50 Value:Target: Topoisomerase II; Microtubule/TubulinPodophyllotoxin, a kind of non-alkaloid toxin lignan extracted from the roots and rhizomes of Podophyllum plant, has been shown to inhibit the growth of various carcinoma cells. Podophyllotoxin is a natural product that inhibits the polymerization of tubulin and has served as a prototype for the development of diverse antitumor agents in clinicalMore

Methimazole

CAS No: 60-56-0

Formula: C4H6N2S

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Methimazole(Tapazole, Northyx) is an antithyroid medicine.Target: OthersMethimazole is an antithyroid drug, and part of the thioamide group. Like its counterpart propylthiouracil, a major side effect of treatment is agranulocytosis. Methimazole is a drug used to treat hyperthyroidism, a condition that occurs when the thyroid gland begins to produce an excess of thyroid hormone. The drug may also be taken before thyroid surgery to lower thyroid hormone levels and minimize the effects of tMore

Scopolamine hydrobromide

CAS No: 114-49-8

Formula: C17H21NO4.BrH

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Scopolamine hydrobromide is a high affinity (nM) muscarinic antagonist. 5-HT3 receptor-responses are reversibly inhibited by Scopolamine with an IC50 of 2.09 μM. More

Secnidazole

CAS No: 3366-95-8

Formula: C7H11N3O3

Categories: Active Pharmaceutical Ingredients > Antibiotics

Secnidazole is a nitroimidazole anti-infective drug. More

Valsartan

CAS No: 137862-53-4

Formula: C24H29N5O3

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Valsartan (CGP-48933) is an angiotensin II receptor antagonist for treatment of high blood pressure and heart failure. More

Diltiazem

CAS No: 42399-41-7

Formula: C22H26N2O4S

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

ChEBI: A 5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetate in which both stereocentres have S configuration. A calcium-channel blocker and vasodilator, it is used as the hydrochloride in the m nagement of angina pectoris and hypertension.More

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Haloperidol

CAS No: 52-86-8

Formula: C21H23ClFNO2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Haloperidol is a potent dopamine D2 receptor antagonist, widely used as an antipsychotic. More

Doxepin

CAS No: 1668-19-5

Formula: C19H21NO

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

ChEBI: A dibenzooxepine that is 6,11-dihydrodibenzo[b,e]oxepine substituted by a 3-(dimethylamino)propylidene group at position 11. It is used as an antidepressant drug.More

Fluvoxamine

CAS No: 54739-18-3

Formula: C15H21F3N2O2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Fluvoxamine is an antidepressant which functions pharmacologically as a selective serotonin reuptake inhibitor.Target: SSRIsFluvoxamine is effective in inhibiting 5-ht uptake by blood platelets and brain synaptosomes. The antagonism by fluvoxamine of the reserpine-induced lowering of the pentamethylenetetrazole convulsive threshold can be regarded as due to an effect upon 5-HT uptake. In contrast to the effects of desmethylimipramine and imipramine, no stimulatory effects are found in raMore

Dihydrostreptomycin

CAS No: 128-46-1

Formula: C21H41N7O12

Categories: Active Pharmaceutical Ingredients > Antibiotics

Antibacterial.More

Cefpodoxime

CAS No: 80210-62-4

Formula: C15H17N5O6S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Off-White SolidMore

Econazole nitrate

CAS No: 24169-02-6

Formula: C18H15Cl3N2O.HNO3

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

Econazole nitrate (Spectazole) is an imidazole class antifungal medication.Target: AntifungalEconazole nitrate is an antifungal medication of the imidazole class. It is used as a cream to treat skin infections such as athlete's foot, tinea, pityriasis versicolor, ringworm, and jock itch. In each of these tests the activity of econazole was compared with that of different reference drugs. Vaginal candidiasis in rats was cured after oral administration of econazole. Toxicity and teratogeniMore

(+)-Ethambutol

CAS No: 74-55-5

Formula: C10H24N2O2

Categories: Active Pharmaceutical Ingredients > Amides

Ethambutol is a bacteriostatic antimycobacterial agent, which obstructs the formation of cell wall by inhibiting arabinosyl transferases.Target: AntibacterialEthambutol directly affects two polymers, arabinogalactan (AG) and lipoarabinomannan (LAM) in Mycobacterium smegmatis. In M. smegmatis, Ethambutol inhibits synthesis of arabinan completely and inhibits AG synthesis most likely as a consequence of this; more than 50% of the cell arabinan is released from the bacteria following EthambMore

Pefloxacin

CAS No: 70458-92-3

Formula: C17H20FN3O3

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

ChEBI: A quinolone that is 4-oxo-1,4-dihydroquinoline which is substituted at positions 1, 3, 6 and 7 by ethyl, carboxy, fluorine, and 4-methylpiperazin-1-yl groups, respectively.More

Benazepril hydrochloride

CAS No: 86541-74-4

Formula: C24H28N2O5.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Benazepril hydrochloride, an angiotensin converting enzyme inhibitor, which is a medication used to treat high blood pressure.Target: angiotensin converting enzyme (ACE)Benazepril hydrochloride is a medication used to treat high blood pressure (hypertension), congestive heart failure, and chronic renal failure. Upon cleavage of its ester group by the liver, benazepril hydrochloride is converted into its active form benazeprilat, a non-sulfhydryl angiotensin-converting enzyme (ACE) inhibiMore

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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