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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

Hyodeoxycholic acid

CAS No: 83-49-8

Formula: C24H40O4

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Hyodeoxycholic acid is a secondary bile acid formed in the small intestine by the gut flora, and acts as a TGR5 (GPCR19) agonist, with an EC50 of 31.6 µM in CHO cells. More

Atropine sulfate monohydrate

CAS No: 5908-99-6

Formula: C17H23NO3.1/2H2O4S.1/2H2O

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Atropine sulfate monohydrate is a competitive muscarinic acetylcholine receptor antagonist.Target: mAChRAtropine is a naturally occurring tropane alkaloid extracted from deadly nightshade (Atropa belladonna), Jimson weed (Datura stramonium), mandrake (Mandragora officinarum) and other plants of the family Solanaceae. Atropine is a competitive antagonist of the muscarinic acetylcholine receptors (acetylcholine being the main neurotransmitter used by the parasympathetic nervous system). AtMore

Lopinavir

CAS No: 192725-17-0

Formula: C37H48N4O5

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

White Crystalline SolidChEBI: A dicarboxylic acid amide in which a parent structure of amphetamine is substituted on nitrogen by a (2,6-dimethylphenoxy)acetyl group and on the carbon alpha to nitrogen by a (1S,3S)-1-hydroxy-3-{[(2S)-3- ethyl-2-(2-oxotetrahydropyrimidin-1(2H)-yl)butanoyl]amino}-4-phenylbutyl group. An antiretroviral of the protease inhibitor class. It is used against HIV infections as a fixed-dose combination with another protease inhibitor, ritonavir.Lopinavir, the sixth HIV pMore

Hexylresorcinol

CAS No: 136-77-6

Formula: C12H18O2

Categories: Active Pharmaceutical Ingredients > Antimicrobials

slightly red powderPale-yellow viscous liquid (that becomes solid on standing at room temperature) or a peach colored powder. Pungent faintly fatty odor. Sharp astringent taste.More

PODOPHYLLOTOXIN

CAS No: 4354-76-1

Formula: C22H22O8

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

White Crystalline PowderMore

Gastrodin

CAS No: 62499-27-8

Formula: C13H18O7

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Gastrodin, a main constituent of a Chinese herbal medicine Tianma, has been known to display anti-inflammatory effects. Gastrodin, has long been used for treating dizziness, epilepsy, stroke and dementia. More

Cefotiam

CAS No: 61622-34-2

Formula: C18H23N9O4S3

Categories: Active Pharmaceutical Ingredients > Antibiotics

ChEBI: A cephalosporin with ({1-[2-(dimethylamino)ethyl]-1H-tetrazol-5-yl}sulfanyl)methyl and (2-amino-1,3-thiazol-4-yl)acetamido substituents at positions 3 and 7, respectively, of the cephem skeleton. A third generation beta-lactam cephalospo in antibiotic, it is active against a broad spectrum of both Gram positive and Gram negative bacteria.More

1123 Active Pharmaceutical Ingredients Suppliers

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Ethyl ferulate

CAS No: 4046-02-0

Formula: C12H14O4

Categories: Active Pharmaceutical Ingredients > Antioxidant Ingredient

Ethyl ferulate, a naturally lipophilic derivative of ferulic acid originally derived from giant fennel (F. communis), induces heme oxygenase-1 (HO-1) and protects rat neurons against oxidative stress[1]. Ethyl ferulate also protects neurons against amyloid β peptide (1-42)-induced oxidative stress and neurotoxicity[2]. More

Coenzyme B12

CAS No: 13870-90-1

Formula: C72H100CoN18O17P

Categories: Active Pharmaceutical Ingredients > Antioxidant Ingredient

ChEBI: A member of the class of cobalamins that is vitamin B12 in which the cyano group is replaced by a 5'-deoxyadenos-5'-yl moiety. It is one of the two metabolically active form of vitamin B12.More

Naphazoline hydrochloride

CAS No: 550-99-2

Formula: C14H14N2.ClH

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

White crystalline powder. Melting point 255-260 ℃. 40 grams of the product can be dissolved in 100 ml of water . It is soluble in alcohol, slightly soluble in chloroform, insoluble in ether and benzene. Odorless, bitter taste. White or almost white, crystalline powder.More

Cinnarizine

CAS No: 298-57-7

Formula: C26H28N2

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Cinnarizine is an antihistamine and a calcium channel blocker, promote cerebral blood flow, used to treat cerebral apoplexy, post-trauma cerebral symptoms, and cerebral arteriosclerosis. More

Fingolimod hydrochloride

CAS No: 162359-56-0

Formula: C19H33NO2.ClH

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

White SolidChEBI: The hydrochloride salt of 2-amino-2-[2-(4-octylphenyl) ethyl]-1,3-propanediol (fingolimod).Approved by the U.S. FDA in September 2010, fingolimod (also referredto as FTY720) is the first approved oral therapy for the relapsing-remittingform ofmultiple sclerosis (RRMS). Because of fingolimod’s structuralresemblance to sphingosine, a metabolite of sphingolipids that constitutesthe cell membrane of all eukaryotic cells, it was hypothesized thatfingolimod may be affectinMore

D-Tetrandrine

CAS No: 518-34-3

Formula: C38H42N2O6

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Tetrandrine is a bis-benzyl-isoquinoline alkaloid, which inhibits voltage-gated Ca2+ current (ICa) and Ca2+-activated K+ current. 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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