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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

Cefaclor monohydrate

CAS No: 70356-03-5

Formula: C15H14ClN3O4S.H2O

Categories: Active Pharmaceutical Ingredients > Antibiotics

Cefaclor monohydrate is an effective antibiotic agent, and specifically binds to penicillin-binding protein 3 (PBP 3)[1]. More

(-)-1-(4-Fluorophenyl)ethanol

CAS No: 101219-73-2

Formula: C8H9FO

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Mexiletine

CAS No: 31828-71-4

Formula: C11H17NO

Categories: Active Pharmaceutical Ingredients > Amides

ChEBI: An aromatic ether which is 2,6-dimethylphenyl ether of 2-aminopropan-1-ol.More

Josamycin

CAS No: 16846-24-5

Formula: C42H69NO15

Categories: Active Pharmaceutical Ingredients > Antibiotics

White or slightly yellowish powder, slightly hygroscopic.ChEBI: A macrolide antibiotic produced by certain strains of Streptomyces narbonensis var. josamyceticus.More

(+)-Cloprostenol sodium

CAS No: 62561-03-9

Formula: C22H28ClNaO6

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

d-Cloprostenol Sodium Salt is the d-enantiomer of Cloprostenol (C587300), an aryl-oxymethyl analog of prostaglandin F2α.More

Indobufen

CAS No: 63610-08-2

Formula: C18H17NO3

Categories: Active Pharmaceutical Ingredients > Blood System Drugs

Indobufen is a platelet aggregation inhibitor. Indobufen is a reversible platelet cyclooxygenase (Cox) activity inhibitor. Indobufen suppresses thromboxane A2 (TxA2) synthesis. Indobufen down-regulates tissue factor (TF) in monocytes[1]. More

1123 Active Pharmaceutical Ingredients Suppliers

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Cefteram

CAS No: 82547-58-8

Formula: C16H17N9O5S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Pale Yellow SolidMore

Limaprost

CAS No: 74397-12-9

Formula: C22H36O5

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Limaprost(OP1206) is a PGE1 analog and potent platelet adhesion inhibitor.Target: OthersLimaprost, an alprostadil (prostaglandin E1) analogue, is a vasodilator that increases blood flow and inhibits platelet aggregation. Limaprost is a n analog of PGE1 with structural modifications intended to give a prolonged half-life and greater potency. It is orally active in both guinea pigs and rats at doses of 100 mg/kg as an inhibitor of ADP and collagen induced platelet aggregation. It is 10-1,0More

Propiverine

CAS No: 60569-19-9

Formula: C23H29NO3

Categories: Active Pharmaceutical Ingredients > Urinary System Drugs

Cefozopran

CAS No: 113359-04-9

Formula: C19H17N9O5S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

White To Pale-Yellow PowderMore

Diflunisal

CAS No: 22494-42-4

Formula: C13H8F2O3

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Diflunisal (MK-647) is a salicylate derivative with nonsteroidal anti-inflammatory and uricosuric properties, which is used alone as an analgesic and in rheumatoid arthritis patients. The mechanism of action of diflunisal is as a Cyclooxygenase (COX) Inhibitor. More

Flomoxef

CAS No: 99665-00-6

Formula: C15H18F2N6O7S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Flomoxef is a oxacephem group antibiotic, with excellent activity against various Gram-positive bacteria[1][2]. More

Sodium sulfathiazole

CAS No: 144-74-1

Formula: C9H9N3O2S2.Na

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Sulfathiazole Sodium is an organosulfur compound that has been used as a short-acting sulfa drug.Target: AntibacterialSulfathiazole (20 μg/L) starts to be degraded between day 31 and day 38 in one of the two batch reactors containing different wastewater matrices. Sulfathiazole is degraded at a substantially faster rate than sulfamethoxazole or sulfamethazine in the nitrification process (S3) [1]. Recovery from spiked manure slurry samples is 64% for Sulfathiazole at pH 9. SulfathiazoleMore

Trichostatin A

CAS No: 58880-19-6

Formula: C17H22N2O3

Categories: Active Pharmaceutical Ingredients > Antibiotics

Trichostatin A is a potent and specific inhibitor of HDAC class I/II, with an IC50 value of 1.8 nM for HDAC. 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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