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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 735 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

Tylosin phosphate

CAS No: 1405-53-4

Formula: C46H77NO17.xH3O4P

Categories: Active Pharmaceutical Ingredients > Antibiotics

Tylosin phosphate (TS) is a light yellow to yellow liquid substance with a characteristic odor. Tylosin phosphate has an antibacterial effect mainly on Gram-positive bacteria and partly on Gramnegative bacteria and mycoplasma, and has a growth-promoting effect on pigs.More

Bifonazole

CAS No: 60628-96-8

Formula: C22H18N2

Categories: Active Pharmaceutical Ingredients > Anti-seborrheic

Bifonazole is an imidazole antifungal drug.Target: AntifungalBifonazole, a new broad-spectrum antimycotic, interferes with sterol biosynthesis. In dermatophytes bifonazole additionally inhibits directly HMG-CoA-reductase. bifonazole possesses a sequential mode of action, namely inhibition of cytochrome P450-dependent C14-demethylation of sterols and direct inhibition of HMG-CoA-reductase. In vitro bifonazole shows a strongly pH-dependent efficacy. The uptake kinetics of bifonazole have bMore

Chlorpromazine hydrochloride

CAS No: 69-09-0

Formula: C17H19ClN2S.ClH

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Chlorpromazine Hydrochloride is an antagonist of the dopamine D2, 5HT2A, potassium channel andsodium channel. Chlorpromazine binds with D2 and 5HT2A with Kis of 363 nM and 8.3 nM, respectively. More

Alfuzosin hydrochloride

CAS No: 81403-68-1

Formula: C19H27N5O4.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Alfuzosin hydrochloride is an α1 adrenergic receptor antagonist used to treat benign prostatic hyperplasia (BPH).Target: α1 adrenergic receptorAlfuzosin, a new quinazoline derivative, acts as a selective and competitive antagonist of alpha 1-adrenoceptor-mediated contraction of prostatic, prostatic capsule, bladder base and proximal urethral smooth muscle, thereby reducing the tone of these structures. Consequently, urethral pressure and resistance, bladder outlet resistance, bladder insMore

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Valsartan

CAS No: 137863-60-6

Formula: C24H29N5O3

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Used to treat high blood pressureMore

Tropicamide

CAS No: 1508-75-4

Formula: C17H20N2O2

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

Crystalline SolidTropicamide, N-ethyl-2-phenyl-N-(4-pyridylmethyl)hydracrylamide (Mydriacyl), is aneffective anticholinergic for ophthalmic use when mydriasisis produced by relaxation of the sphincter muscle ofthe iris, allowing adrenergic innervation of the radial muscleto dilate the pupil. Its maximum effect is achieved inabout 20 to 25 minutes and lasts for about 20 minutes,with complete recovery in about 6 hours. Its action ismore rapid in onset and wears off more rapidly thanthat of most oMore

Cefoperazone

CAS No: 62893-19-0

Formula: C25H27N9O8S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Cefoperazone is a cephalosporin antibiotic for inhibition of rMrp2-mediated [3H]E217βG uptake with IC50 of 199 μM.Target: AntibacterialCefoperazone is a sterile, semisynthetic, broad-spectrum, parenteral cephalosporin antibiotic for intravenous or intramuscular administration. After intravenous administration of 2 g of Cefoperazone, levels in serum rang from 202μg/mL to 375 μg/mL depending on the period of drug administration. After intramuscular injection of 2 g of Cefoperazone, the meaMore

Tirofiban

CAS No: 144494-65-5

Formula: C22H36N2O5S

Categories: Active Pharmaceutical Ingredients > Cardiovascular Agents

ChEBI: A member of the class of piperidines that is L-tyrosine in which a hydrogen attached to the amino group is replaced by a butylsulfonyl group and in which the hydrogen attached to the phenolic hydroxy group is replaced by a 4-(piperidin-4-y )butyl group.Tirofiban is a nonpeptide that appears unrelatedchemically to eptifibatide, but actually has many similarities.The chemical architecture incorporates a systemthat is mimicking the RGD moiety that is present in eptifibatide.This can be seeMore

Amorolfine

CAS No: 78613-35-1

Formula: C21H35NO

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

ChEBI: A member of the class of morpholines that is cis-2,6-dimethylmorpholine in which the hydrogen attached to the nitrogen is replaced by a racemic 2-methyl-3-[p-(2-methylbutan-2-yl)phenyl]propyl group. An inhibitor of the action f squalene monooxygenase, Delta14 reductase and D7-D8 isomerase and an antifungal agent, it is used (generally as its hydrochloride salt) for the topical treatment of fungal nail and skin infections.More

Deferasirox

CAS No: 201530-41-8

Formula: C21H15N3O4

Categories: Active Pharmaceutical Ingredients > Blood System Drugs

Deferasirox (ICL 670) is an orally available iron chelator used for the management of transfusional iron overload. More

Etamsylate

CAS No: 2624-44-4

Formula: C6H6O5S.C4H11N

Categories: Active Pharmaceutical Ingredients > Blood System Drugs

Ethamsylate is a haemostatic drug, also inhibits biosynthesis and action of those prostaglandins.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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