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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 740 qualified manufacturers and 369 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.
4829 Active Pharmaceutical Ingredients items

Maraviroc

CAS No: 376348-65-1

Formula: C29H41F2N5O

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Maraviroc is a selective CCR5 antagonist with activity against human HIV. More

Tazarotene

CAS No: 118292-40-3

Formula: C21H21NO2S

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

It is as white-like or pale yellow solid. White SolidChEBI: The ethyl ester of tazarotenic acid. A prodrug for tazarotenic acid, it is used for the treatment of psoriasis, acne, and sun-damaged skin.Tazarotene belongs to a third generation prescription topical retinoid. It is marketed in different forms including cream (brand name: Avage), foam (brand name: Fabuir) and gel (brand name: Tazorac). It is mainly used for the treatment of psoriasis, acne, and sun damaged skin. The detailed mechMore

Benzathine penicillin

CAS No: 1538-09-6

Formula: C16H20N2.2C16H18N2O4S

Categories: Active Pharmaceutical Ingredients > Antibiotics

White or almost white powder.Benzathine penicillin and procaine penicillin is an antibiotic that fights bacteria in your body. Benzathine penicillin and procaine penicillin is used to treat many different types of severe infections, including strep and staph infections, diphtheria, meningitis, gonorrhea, and syphilis. It is also used to prevent rheumatic fever. It is given by injection into a muscle. Belonging to a penicillin-class drug, its mechanism of action is inhibiting the cell wall synthMore

Dibucaine hydrochloride

CAS No: 61-12-1

Formula: C20H30ClN3O2

Categories: Active Pharmaceutical Ingredients > Anesthetic Agents

Dibucaine Hydrochloride is a local anesthetic of the amide type now generally used for surface anesthesia.Target: Sodium ChannelDibucaine is an amide local anesthetic. Dibucaine reduced the degradation of BSA-gold complex in the reservosomes, which was not caused either by an inhibition of the whole proteolytic activity of the parasite or by a reduction on the expression levels of cruzipain [1].Dibucaine, a quaternary ammonium compound, inhibited SChE to a minimum within 2 min in a reverMore

Lomerizine

CAS No: 101477-55-8

Formula: C27H30F2N2O3

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

antimigraine, cerebral vasodilator, Ca channel blockerMore

(+)-Dioscin

CAS No: 19057-60-4

Formula: C45H72O16

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Dioscin(CCRIS 4123; Collettiside III) is a natural steroid saponin derived from several plants, showing potent anti-cancer effect against a variety of tumor cell lines. IC50 value:Target: Anticancer agentin vitro: dioscin (1, 2 and 4 μmol/L) could significantly inhibit the viability of LNCaP cells in a time- and concentration-dependent manner. Flow cytometry revealed that the apoptosis rate was increased after treatment of LNCaP cells with dioscin for 24 h, indicating that apoptosis wasMore

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Benzbromarone

CAS No: 3562-84-3

Formula: C17H12Br2O3

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Benzbromarone is a highly effective and well tolerated non-competitive inhibitor of xanthine oxidase, used as an uricosuric agent, used in the treatment of gout. More

Teniposide

CAS No: 29767-20-2

Formula: C32H32O13S

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Teniposide is a podophyllotoxin derivative, acts as a topoisomerase II inhibitor, and used as a chemotherapeutic agent. More

L-Tyrosine, 3-hydroxy-α-methyl-, hydrate (2:3)

CAS No: 41372-08-1

Formula: C10H13NO4.3/2H2O

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

L-(-)-α-Methyldopa hydrate is an alpha-adrenergic agonist (selective for α2-adrenergic receptors) psychoactive drug used as a sympatholytic or antihypertensive.Target: alpha-adrenergic agonistMethyldopa is an alpha-adrenergic agonist (selective for α2-adrenergic receptors) psychoactive drug used as a sympatholytic or antihypertensive. Its use is now mostly deprecated following the introduction of alternative safer classes of agents. However, it continues to have a role in otherwise diffiMore

(±)-Tolperisone

CAS No: 728-88-1

Formula: C16H23NO

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Central muscle relaxants and vasodilators.More

Xenon

CAS No: 7440-63-3

Formula: Xe

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

Colorless, odorless gas or liquid. Gas (at STP) has d 5.8971 g/L (air = 1.29 g/L), dielectric constant 1.0012 (25C) (1 atm); liquid has bp ?108.12C (1 mm Hg), d (at bp) of 1.987 g/cc; liquefaction temp?106.9C.Chemically unreactive but not completely inert. Noncombustible.More

(±)-Hydroxyzine

CAS No: 68-88-2

Formula: C21H27ClN2O2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Hydroxyzine is a histamine H1-receptor antagonist.Target: Histamine H1-ReceptorHydroxyzine inhibits carbachol (10 μM)-induced serotonin release by 34% at 10 μM, by 25% 1 μM and by 17% 0.1 μM in pretreated bladder slices for 60 min [1]. Hydroxyzine (0.1 mM) treatment inhibits the progression and severity of EAE by 50% and the extent of mast cell degranulation by 70% in Lewis rats with allergic encephalomyelitis (EAE) [2]. Hydroxyzine (500 ?M) significantly increases transport of etoposideMore

Indocyanine green

CAS No: 3599-32-4

Formula: C43H48N2O6S2.Na

Categories: Active Pharmaceutical Ingredients > Diagnostic Agents

Cardiogreen is a low toxicic fluorescent agent that has been widely used in medical diagnostics, such as determining cardiac output, hepatic function, and liver blood flow, and for ophthalmic angiography.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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