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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

Telithromycin

CAS No: 191114-48-4

Formula: C43H65N5O10

Categories: Active Pharmaceutical Ingredients > Antibiotics

Pale Beige SolidTelithromycin was first launched in Germany as a once-daily oral treatment for respiratory infections including community-acquired pneumonia, acute bacterial exacerbations of chronic bronchitis, acute sinusitis and tonsillitis/pharyngitis. This semisynthetic derivative of the natural macrolide erythromycin is the first marketed ketolide, a new class of antibiotics featuring a C3-ketone instead of the L-cladinose group. The 14-membered ring antibacterial agent prevents bacteMore

Triprolidine

CAS No: 486-12-4

Formula: C19H22N2

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

ChEBI: An N-alkylpyrrolidine that is acrivastine in which the pyridine ring is lacking the propenoic acid substituent. It is a sedating antihistamine that is used (generally as the monohydrochloride monohydrate) for the relief of the symptoms o uticaria, rhinitis, and various pruritic skin disorders.More

Cefmenoxime

CAS No: 65085-01-0

Formula: C16H17N9O5S3

Categories: Active Pharmaceutical Ingredients > Antibiotics

ChEBI: A third-generation cephalosporin antibiotic, bearing a 2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino group at the 7beta-position and a [(1-methyl-1H-tetrazol-5-yl)sulfanyl]methyl group at the 3-position.More

Guaiazulene

CAS No: 489-84-9

Formula: C15H18

Categories: Active Pharmaceutical Ingredients > Perfuming

Guaiazulene is present in several essential oils of medicinal and aromatic plants, with antioxidant activity. Guaiazulene has in vitro cytotoxic activity against neuron and N2a neuroblastom (N2a-NB) cells[1][2]. More

MAFENIDEACETATE

CAS No: 7761-27-5

Formula: C9H14N2O4S

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Rifapentine

CAS No: 61379-65-5

Formula: C47H64N4O12

Categories: Active Pharmaceutical Ingredients > Antibiotics

Rifapentine (Priftin; DL 473) is an antibiotic compound used in the treatment of tuberculosis.Target: AntibacterialRifapentine inhibits DNA-dependent RNA polymerase activity in susceptible cells. Specifically, it interacts with bacterial RNA polymerase but does not inhibit the mammalian enzyme. A review of alternative regimens for prevention of active tuberculosis in HIV-negative individuals with latent TB found that a weekly, directly observed regimen of rifapentine with isoniazid for tMore

1122 Active Pharmaceutical Ingredients Suppliers

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Saquinavir

CAS No: 127779-20-8

Formula: C38H50N6O5

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

ChEBI: An aspartic acid derivative obtained by formal condensation of the primary amino group of (2S,3R)-4-[(3S,4aS,8aS)-3-(tert-butylcarbamoyl)octahydroisoquinolin- (1H)-yl]-3-hydroxy-1-phenylbutan-2-ylamine with the carboxy group of N2(-quinolin-2-ylcarbonyl)-L-asparagine. An inhibitor of HIV-1 protease.Saquinavir mesylate, the first HIV protease inhibitor to reach the market, was launched in the U.S.A.. It is indicated for use in combination with approved nucleoside analogs for the treatmMore

Sodium tetraborate pentahydrate

CAS No: 12179-04-3

Formula: B4Na2O7.5H2O

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Borax is a noncombustible (an inherent fire retardant), bluish-gray or green, odorless crystalline powder or granules.White odorless crystals or free-flowing powder. Density: 1.82 g cm-3. Soluble in water (38 g / L H2O at 20°C). Used in the manufacture of fiberglass insulation and sodium perborate bleach.More

Acridinium, 3,6-diamino-10-methyl-, chloride, mixt. with 3,6-acridinediamine

CAS No: 8048-52-0

Formula: C14H14N3.C13H11N3.Cl

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Acriflavine is a fluorescent dye for labeling high molecular weight RNA. It is also a topical antiseptic. More

Procarbazine

CAS No: 671-16-9

Formula: C12H19N3O

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Procarbazine is a white to pale yellow crystal- line powder with a slight odor.More

Hydralazine hydrochloride

CAS No: 304-20-1

Formula: C8H8N4.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Hydralazine Hydrochloride is a direct-acting vasodilator that is used as an antihypertensive agent.Target: OthersHydralazine (apresoline) is a direct-acting smooth muscle relaxant used to treat hypertension by acting as a vasodilator primarily in arteries and arterioles. By relaxing vascular smooth muscle, vasodilators act to decrease peripheral resistance, thereby lowering blood pressure and decreasing afterload. However, this only has a short term effect on blood pressure, as the systeMore

(-)-Lobeline hydrochloride

CAS No: 134-63-4

Formula: C22H27NO2.ClH

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Lobeline hydrochloride, a nicotinic receptor agonist, acting as a potent antagonist at both α3β2 and α4β2 neuronal nicotinic receptor subtypes. More

(R)-5-(2-Aminopropyl)-2-methoxybenzenesulfonamide

CAS No: 112101-81-2

Formula: C10H16N2O3S

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Cediranib

CAS No: 288383-20-0

Formula: C25H27FN4O3

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Cediranib maleate (AZD-2171 maleate) is a highly potent, orally available VEGFR tyrosine kinase inhibitor with IC50s of <1, <3, 5, 5, 36, 2 nM for Flt1, KDR, Flt4, PDGFRα, PDGFRβ, c-Kit, respectively. 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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