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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

Proserine

CAS No: 51-60-5

Formula: C12H19N2O2.CH3O4S

Categories: Active Pharmaceutical Ingredients > Amides

Neostigmine methyl sulfate is a reversible inhibitor of acetylcholinesterase, can not cross the blood-brain barrier. More

Leucomycin, (2R,3R)-2,3-dihydroxybutanedioate (1:?)

CAS No: 37280-56-1

Formula: C4H6O6.xUnspecified

Categories: Active Pharmaceutical Ingredients > Antibiotics

It belongs to antibiotics and is used to treat upper respiratory tract infections, pneumonia, gonorrhea, acute mastitis, whooping cough, tonsillitis, sepsis, etc.More

6-Bromo-1-hexanol

CAS No: 4286-55-9

Formula: C6H13BrO

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

colourless or light yellow liquidMore

Atazanavir sulfate

CAS No: 229975-97-7

Formula: C38H52N6O7.H2O4S

Categories: Active Pharmaceutical Ingredients > Antibiotics

Atazanavir sulfate is a sulfate salt form of atazanavir that is an highly potent HIV-1 protease inhibitor.Target: HIV-1 protease inhibitorAtazanavir sulfate is a sulfate salt form of atazanavir that is an highly potent HIV-1 protease inhibitor. It has a pharmacokinetic profile that supports once-daily dosing and has demonstrated a unique resistance profile and superior virologic potency compared with other antiretrovirals in vitro. In subjects with HIV, atazanavir (400 mg once daily) proMore

(±)-Brompheniramine maleate

CAS No: 980-71-2

Formula: C16H19BrN2.C4H4O4

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

Brompheniramine maleate is a histamine H1 receptors antagonist.Target: Histamine H1 ReceptorBrompheniramine maleate, is an antihistamine drug of the propylamine (alkylamine) class. It is readily available over the counter and is indicated for the treatment of the symptoms of the common cold and allergic rhinitis. It is a first-generation antihistamine. Brompheniramine has antidepressant properties, inhibiting reuptake of the neurotransmitter serotonin. Based on this knowledge, Arvid CarlMore

2-Ethoxybenzamide

CAS No: 938-73-8

Formula: C9H11NO2

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

2-Ethoxybenzamide is widely used as an antipyretic anodyne. More

Cinchonidine

CAS No: 485-71-2

Formula: C19H22N2O

Categories: Active Pharmaceutical Ingredients > Antibiotics

Cinchonidine (α-Quinidine) is a cinchona alkaloid found in Cinchona officinalis and Gongronema latifolium. A building block used in asymmetric synthesis in organic chemistry. Weak inhibitor of serotonin transporter (SERT) with Kis of 330, 4.2, 36, 196, 15 μM for dSERT, hSERT, hSERT I172M, hSERT S438T, hSERT Y95F, respectively. Antimalarial activities[1]. More

Imipramine

CAS No: 50-49-7

Formula: C19H24N2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

SolidMore

Chlorobutanol

CAS No: 57-15-8

Formula: C4H7Cl3O

Categories: Active Pharmaceutical Ingredients > Cosmetic Preservative

White or almost white, crystalline powder or colourless crystals, sublimes readily Volatile, colorless or white crystals with a musty, camphoraceous odor.More

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Loxoprofen sodium

CAS No: 80382-23-6

Formula: C15H18O3.Na

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

ChEBI: A hydrate that is the dihydrate form of loxoprofen sodium. The parent acid, loxoprofen, is a prodrug that is rapidly converted to its active trans-alcohol metabolite following oral administration.More

Edoxaban tosylate

CAS No: 480449-71-6

Formula: C24H30ClN7O4S.C7H8O3S

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Edoxaban(DU-176) is an oral factor Xa (FXa) inhibitor in clinical development for stroke preventionIC50 Value:Target: factor XaEdoxaban is an oral factor Xa (FXa) inhibitor in clinical development for stroke prevention in patients with atrial fibrillation, an elderly population that frequently receives aspirin (ASA) and/or nonsteroidal anti-inflammatory drugs for concurrent illnesses[1].in vitro: Edoxaban PK was not affected by concomitant low-dose ASA or naproxen, but high-dose ASA incrMore

Tolperisone hydrochloride

CAS No: 3644-61-9

Formula: C16H23NO.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Tolperisone is a centrally acting muscle relaxant, is indicated for use in the treatment of pathologically increased tone of the cross-striated muscle caused by neurological diseases (damage of the pyramidal tract, multiple sclerosis, myelopathy, encephalomyelitis) and of spastic paralysis and other encephalopathies manifested with muscular dystonia. More

Eprosartan

CAS No: 133040-01-4

Formula: C23H24N2O4S

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Light-Yellow SolidChEBI: A member of the class of imidazoles and thiophenes that is an angiotensin II receptor antagonist used for the treatment of high blood pressure.Teveten was launched in Germany for the treatment of hypertension. There are several ways in which it has been prepared, the shortest of which is four steps; beginning with displacement of 2-butyl-4-chloroimidazole-5-carboxaldehyde with methyl 4-(bromomethyl)benzoate. Teveten is an angiotensin Ⅱ antagonist selective for thMore

Trestolone

CAS No: 3764-87-2

Formula: C19H28O2

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Trestolone, also known as Trestolone, is a synthetic androgen compound with the formula C19H26O2. This compound usually appears as a white to yellowish crystalline powder and is widely used in scientific research and drug development. Trestolone has attracted attention for its significant androgen activity, which effectively mimics the action of natural androgens, resulting in strong masculine characteristics in the male body. Due to its powerful androgen effect, Trestolone has an important place in male hormone replacement therapy. It can help restore normal physiological function in men who have insufficient androgen levels in their bodies due to disease, surgery or other reasons. In addition, Trestolone is used to treat certain medical conditions, such as hypogonadism and certain types of sexual development disorders. By supplementing with Trestolone, patients can have relief from associated symptoms and improve quality of life. In terms of drug development, Trestolone's research is not limited to its androgen activity, but also to its potential anti-tumor effects. Scientists are exploring its potential for use in the treatment of prostate cancer and other androgen-related cancers. Although Trestolone has a wide range of medical applications, its use still needs to be carried out under the guidance of a medical professional to ensure safety and effectiveness.More

2,3,4,4′-Tetrahydroxybenzophenone

CAS No: 31127-54-5

Formula: C13H10O5

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Yellow powderMore

L-Glutamic acid, N-[4-[2-(2-amino-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]-, sodium salt (1:2)

CAS No: 150399-23-8

Formula: C20H21N5O6.2Na

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Crystalline SolidChEBI: An organic sodium salt that is the disodium salt of N-{4-[2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl}-L-glutamic acid. Inhibits thymidylate synthase (TS), 4 1 dihydrofolate reductase (DHFR), and glycinamide ribonucleotide formyltransferase (GARFT).Pemetrexed disodium (marketed as ALIMTA®, “pemetrexed”) is a novel, multi-targeted antifolate. It suppresses tumor growth by impeding both DNA synthesis and folate metabolism. Pemetrexed disodiuMore

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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