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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

Benzoyl peroxide

CAS No: 94-36-0

Formula: C14H10O4

Categories: Active Pharmaceutical Ingredients > Oxidising

white powder or crystals Benzoyl peroxide is an odorless, white or colorless crystalline powder.More

Aprepitant

CAS No: 170729-80-3

Formula: C23H21F7N4O3

Categories: Active Pharmaceutical Ingredients > Antiemetics

Off-White to Light Yellow Cyrstalline SolidAprepitant is an antiemetic chemical compound that belongs to “substance P” antagonists (SPA) with its effect being blocking the neurokinin 1(Nk1) receptor. It is used for the prevention of acute and delayedchemotherapy-induced nausea and vomiting(CINV) and for prevention ofpostoperative nausea and vomiting. It can also be used for the treatment of cyclic vomiting syndrome and late-stage chemotherapy induced vomiting occurring during cancer treatment.More

Arbidol

CAS No: 131707-23-8

Formula: C22H25BrN2O3S.ClH

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Arbidol (Umifenovir) hydrochloride is an broad-spectrum antiviral chemical agent which can inhibit cell entry of enveloped viruses by blocking viral fusion with host cell membraneIC50 value:Target: Antiviral; Anti-influenza agentin vitro: Arbidol was found to present potent inhibitory activity against enveloped and non-enveloped RNA viruses, including FLU-A, RSV, HRV 14 and CVB3 when added before, during, or after viral infection, with 50% inhibitory concentration (IC50) ranging from 2.7More

Chenodeoxycholic acid

CAS No: 474-25-9

Formula: C24H40O4

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Chenodeoxycholic Acid is a hydrophobic primary bile acid that activates nuclear receptors (FXR) involved in cholesterol metabolism. More

Diclazuril

CAS No: 101831-37-2

Formula: C17H9Cl3N4O2

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Off-White SolidDiclazuril (molecular formula: C17H9Cl3N4O2, Trade name: Vecoxan) belongs to a kind of coccidiostat and potent antiprotozoal agents. It is mainly used for the treatment, control, prevention and improvements of Coccidal infections. It alleviates the symptoms of the patients by interrupting the life cycle of the parasites. It induces the morphological changes and attenuates the mitochondrial transmembrane potential in meroites. It can prevent congenital toxoplasmosis and have anticMore

Drospirenone

CAS No: 67392-87-4

Formula: C24H30O3

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Drospirenone(Dihydrospirorenone) is a synthetic progestin that is an analog to spironolactone.Target: Progesterone ReceptorDrospirenone is a novel progestin under clinical development that is similar to the natural hormone progesterone, combining potent progestogenic with antimineralocorticoid and antiandrogenic activities. drospirenone was devoid of glucocorticoid activity. Both progestins did not show any antiglucocorticoid action. Furthermore, drospirenone and progesterone both showedMore

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Flunixin meglumine

CAS No: 42461-84-7

Formula: C14H11F3N2O2.C7H17NO5

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Flunixin Meglumine is a potent inhibitor of COX used as analgesic agent with anti-inflammatory and antipyretic activity. Target: COXFlunixin meglumine is a potent, non-narcotic, non-steroidal analgesic agent with anti-inflammatory and antipyretic activity. It is a potent inhibitor of the enzyme cyclooxygenase. Flunixin meglumine therapy significantly (P less than or equal to 0.05) reduced rectal temperatures and quarter signs of inflammation and improved clinically graded depression whenMore

Trichlorobenzene

CAS No: 12002-48-1

Formula: C6H3Cl3

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Pantoprazole

CAS No: 102625-70-7

Formula: C16H15F2N3O4S

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

ChEBI: A member of the class of benzimidazoles that is 1H-benzimidazole substituted by a difluoromethoxy group at position 5 and a [(3,4-dimethoxypyridin-2-yl)methyl]sulfinyl group at position 2.Pantoprazole, an irreversible proton pump inhibitor, reached its first market worldwide in Germany for acute treatment of gastric and duodenal ulcers and gastroesophageal reflux disease. Proton pump inhibitors are more effective than other strategies in inhibiting acid secretion since they functionMore

Ritonavir

CAS No: 155213-67-5

Formula: C37H48N6O5S2

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

White or almost white powder.ChEBI: An L-valine derivative that is an antiretroviral drug from the protease inhibitor class used to treat HIV infection and AIDS, it is often used as a fixed-dose combination with another protease inhibitor, lopinavir. Also used in combination with dasabuvir sodium hydrate, ombitasvir and paritaprevir (under the trade name Viekira Pak) for treatment of chronic hepatitis C virus genotype 1 infection as well as cirrhosis of the liver.Norvir was launched in GermanyMore

Sertraline hydrochloride

CAS No: 79559-97-0

Formula: C17H17Cl2N.ClH

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Sertraline hydrochloride is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class.Target: SSRISertraline is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class. It was introduced to the market by Pfizer in 1991. Sertraline is primarily prescribed for major depressive disorder in adult outpatients as well as obsessive–compulsive, panic, and social anxiety disorders in both adults and children. In 2011, it was the second-most prescribed antidMore

Famciclovir

CAS No: 104227-87-4

Formula: C14H19N5O4

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Off-White PowderChEBI: 2-Amino-9H-purine in which the hydrogen at position 9 is substituted by a 4-acetoxy-3-(acetoxymethyl)but-1-yl group. A prodrug of the antiviral penciclovir, it is used for the treatment of acute herpes zoster (shingles), for the treatmen or suppression of recurrent genital herpes in immunocompetent patients and for the treatment of recurrent mucocutaneous herpes simplex infections in HIV infected patients.Famciclovir, an effective oral prodrug of the antiviral penciclovMore

Acitretin

CAS No: 55079-83-9

Formula: C21H26O3

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

Acitretin(Ro 10-1670) is a second-generation, systemic retinoid that has been used in the treatment of psoriasis.Target: RAR/RXRAcitretin is a second-generation, systemic retinoid that has been approved for the treatment of psoriasis since 1997. It can be considered one of the treatments of choice for pustular and erythrodermic psoriasis. However, the efficacy of acitretin as a monotherapy for plaque psoriasis is less, although it is often used in combination therapy with other systemicMore

(-)-Phenylephrine hydrochloride

CAS No: 61-76-7

Formula: C9H13NO2.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

(R)-(-)-Phenylephrine hydrochloride is a selective α1-adrenoceptor agonist with pKis of 5.86, 4.87 and 4.70 for α1D, α1B and α1A receptors respectively. More

Heparin

CAS No: 9005-49-6

Formula:

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Heparin is a highly sulfated glycosaminoglycan,that is widely used as an injectable anticoagulant, and has the highest negative charge density of any known biological molecule. 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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