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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

Cholic acid

CAS No: 81-25-4

Formula: C24H40O5

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

This agent exist in the bile cattle, sheep, pig. It is a colorless sheet or white crystalline powder. Some have a bitter to sweet taste. Its melting point is 198℃, specific rotation is (c = 0.6, ethanol) +37°. 1g cholic acid dissolved in about 300ml ethanol or acetone, 7ml glacial acetic acid. A small amount of cholic acid is soluble in water. The monohydrate was a white flake crystal. In 1927, H.Wieland (Germany) research accomplished bile acid composition, and won the Nobel Prize in chemistryMore

Mitiglinide

CAS No: 145375-43-5

Formula: C19H25NO3

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Antineoplastic.More

(-)-Thyroxine

CAS No: 51-48-9

Formula: C15H11I4NO4

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

L-Thyroxine (Levothyroxine; T4) is a synthetic hormone in the treatment of hypothyroidism. DIO enzymes convert biologically active thyroid hormone (Triiodothyronine,T3) from L-Thyroxine (T4). More

6-Mercaptopurine

CAS No: 50-44-2

Formula: C5H4N4S

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

6-Mercaptopurine is a purine analogue which acts as an antagonist of the endogenous purines and has been widely used as antileukemic agent and immunosuppressive drug. More

Spectinomycin

CAS No: 1695-77-8

Formula: C14H24N2O7

Categories: Active Pharmaceutical Ingredients > Antibiotics

ChEBI: An organic heterotricyclic antibiotic that is active against gram-negative bacteria and used (as its dihydrochloride pentahydrate) to treat gonorrhea. It is produced by the bacterium Streptomyces spectabilis.More

Axitinib

CAS No: 319460-85-0

Formula: C22H18N4OS

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Axitinib is a multi-targeted tyrosine kinase inhibitor with IC50s of 0.1, 0.2, 0.1-0.3, 1.6 nM for VEGFR1, VEGFR2, VEGFR3 and PDGFRβ, respectively. More

Vinblastine sulfate

CAS No: 143-67-9

Formula: C46H58N4O9.H2O4S

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Vinblastine sulfate is a cytotoxic alkaloid used against various cancer types. Vinblastine sulfate inhibits the formation of microtubule and suppresses nAChR with an IC50 of 8.9 μM. More

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Leflunomide

CAS No: 75706-12-6

Formula: C12H9F3N2O2

Categories: Active Pharmaceutical Ingredients > CNS Agents

Leflunomide is a pyrimidine synthesis inhibitor, inhibiting dihydroorotate dehydrogenase, and acts as a disease-modifying antirheumatic drug. More

Bendamustine

CAS No: 97832-05-8

Formula: C16H21Cl2N3O2.HCl

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Nimesulide

CAS No: 51803-78-2

Formula: C13H12N2O5S

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Nimesulide is a selective COX-2 inhibitor, with IC50s of 70 nM-70 μM in a time-dependent manner, but it shows no effect on COX-1 (IC50 >100 μM). Nimesulide has potent anti-inflammatory, analgesic and antipyretic properties. More

Chloramine-T

CAS No: 127-65-1

Formula: C7H8ClNO2S.Na

Categories: Active Pharmaceutical Ingredients > Antimicrobials

white or yellow powder with a chlorine-like odourChEBI: An organic sodium salt derivative of toluene-4-sulfonamide with a chloro substituent in place of an amino hydrogen.More

Dacarbazine

CAS No: 4342-03-4

Formula: C6H10N6O

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Dacarbazine(DTIC-Dome; DTIC) is an antineoplastic agent. It has significant activity against melanomas.Target: Nucleoside antimetabolite/analogApproved: May 1975Dacarbazine (DTIC) is the only single-agent approved by the Food and Drug Administration for treating metastatic melanoma. With DTIC as single agent, an approximately 20% objective response rate can be achieved with median response duration of 5 to 6 months and complete response rates of 5% [1]. Dacarbazine (DTIC) has activity inMore

Fasudil hydrochloride

CAS No: 105628-07-7

Formula: C14H17N3O2S.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Fasudil hydrochloride, a novel calcium antagonistic vasodilator, was marketedfor the treatment of cerebral vasospasm following subarachnoid hemorrhage(SAH). Fasudil is also a potent inhibitor of myosin light chain kinase and protein kinaseC. In contrast to other calcium channel blockers, which regulate the influx of calciumions through the cell membrane but not involved in the intracellular regulatorymechanism of the calcium, fasudil was suggested to have an intracellular mode ofactMore

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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