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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 745 qualified manufacturers and 393 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.
4850 Active Pharmaceutical Ingredients items

Metoprolol succinate

CAS No: 98418-47-4

Formula: C15H25NO3.1/2C4H6O4

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Metoprolol Succinate (Toprol XL) is a selective β1 receptor blocker used in treatment of several diseases of the cardiovascular system, especially hypertension.IC50 value:Target: β1 receptor More

Diphenidol

CAS No: 972-02-1

Formula: C21H27NO

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

ChEBI: A tertiary alcohol that is butan-1-ol substituted by two phenyl groups at position 1 and a piperidin-1-yl group at position 4.More

Ferrous carbonate

CAS No: 563-71-3

Formula: CH2O3.Fe

Categories: Active Pharmaceutical Ingredients > Blood System Drugs

With monobasic acids relatively simple carboxylate salts are formed. Iron(II) formate crystallizes as the green dihydrate; the white acetate Fe(OCOCH3)2.4H20 is very soluble in water with some hydrolysis, the solution being readily oxidized. White solid; odorless; gray solid. Decomposes yielding CO2 + FeO at 2C. Insol in H 2O; sol acids to give CO2; sol in H2O saturated with CO 2 to give Fe(HCO3)2 which then oxidizes.More

Acipimox

CAS No: 51037-30-0

Formula: C6H6N2O3

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Acipimox is a niacin derivative used as a hypolipidemic agent.Target: Acipimox is a niacin derivative used as a hypolipidemic agent. It is used in low doses and may have less marked adverse effects, although it is unclear whether the recommended dose is as effective as are standard doses of nicotinic acid. Acipimox inhibits the production of triglycerides by the liver and the secretion of VLDL, which leads indirectly to a modest reduction in LDL and increase in HDL. Long-term administratMore

Clindamycin palmitate hydrochloride

CAS No: 25507-04-4

Formula: C34H63ClN2O6S.ClH

Categories: Active Pharmaceutical Ingredients > Antibiotics

White SolidMore

Mafenide acetate

CAS No: 13009-99-9

Formula: C7H10N2O2S.C2H4O2

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Crystalline Solid4-(Aminomethyl)benzenesulfonamide acetate (Sulfamylon)is a homologue of the sulfanilamide molecule. It is not atrue sulfanilamide-type compound, as it is not inhibited byPABA. Its antibacterial action involves a mechanism thatdiffers from that of true sulfanilamide-type compounds. This compound is particularly effective against Clostridiumwelchii in topical application and was used duringWorld War II by the German army for prophylaxis ofwounds. It is not effective orally. More

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Thiotepa

CAS No: 52-24-4

Formula: C6H12N3PS

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Thio-TEPA is a DNA alkylating agent, with antitumor activity. More

Imipenem monohydrate

CAS No: 74431-23-5

Formula: C12H17N3O4S.H2O

Categories: Active Pharmaceutical Ingredients > Antibiotics

Imipenem monohydrate, a member of the carbapenem class of antibiotics isolated from the soil organism Streptomyces cattleya[1], is an intravenous β-lactam antibiotic effective against a wide range of Gram-positive and Gram-negative bacteria, including several multi-drug resistant bacterial species. Imipenem acts as cell wall-targeting antibiotic[2][3]. More

Cefetamet pivoxil hydrochloride

CAS No: 111696-23-2

Formula: C20H25N5O7S2.ClH

Categories: Active Pharmaceutical Ingredients > Antibiotics

Cefetamet pivoxil hydrochloride, an ester prodrug of cefetamet, is an orally active cephalosporin introduced for the treatment of community-acquired respiratory and urinary tract infections. Roche indicated that this drug will possibly be the first third-generation cephalosporin to be launched in some counrries. It is reportedly useful in penicillin-resistant pneumococci, gonococci and H. influenzae infections, but ineffective against Staphylococci, P. aeruginosa and some non-fermenters.More

Netilmicin sulfate

CAS No: 56391-57-2

Formula: C21H41N5O7.5/2H2O4S

Categories: Active Pharmaceutical Ingredients > Antibiotics

Netilmicin Sulfate is an active aminoglycoside antibiotic against most Gram-negative and some Gram-positive bacteria, including certain strains resistant to gentamicin. More

Saracatinib

CAS No: 379231-04-6

Formula: C27H32ClN5O5

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Saracatinib (AZD0530) is a potent Src family inhibitor with IC50s of 2.7 to 11 nM for c-Src, Lck, c-YES, Lyn, Fyn, Fgr, and Blk and shows high selectivity over other tyrosine kinases. More

Cefeprime dihydrochloride

CAS No: 107648-80-6

Formula: C19H25ClN6O5S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Used to treat a variety of bacterial infections including severe infectionsMore

1-(4-Hydroxyphenyl)-1-pentanone

CAS No: 2589-71-1

Formula: C11H14O2

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

white to light beige powderMore

Gatifloxacin sesquihydrate

CAS No: 180200-66-2

Formula: C19H22FN3O4.3/2H2O

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Gatifloxacin sesquihydrate (AM-1155; BMS-206584; PD135432) is a potent fluoroquinolone antibiotic with broad-spectrum antibacterial activity. Gatifloxacin sesquihydrate inhibits bacterial type II topoisomerases (IC50=13.8 μg/ml for S. aureus topoisomerase IV) and E. coli DNA gyrase (IC50 = 0.109 μg/ml)[1]. Gatifloxacin sesquihydrate can be used to treat bacterial conjunctivitis in vivo. More

1,2,3,9-Tetrahydro-4(H)-carbazol-4-one

CAS No: 15128-52-6

Formula: C12H11NO

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Corticosterone

CAS No: 50-22-6

Formula: C21H30O4

Categories: Active Pharmaceutical Ingredients > Antibiotics

Corticosterone is an adrenocortical steroid that has modest but significant activities as a mineralocorticoid and a glucocorticoid. 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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