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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

Clavulanic acid

CAS No: 58001-44-8

Formula: C8H9NO5

Categories: Active Pharmaceutical Ingredients > Antibiotics

ChEBI: Antibiotic isolated from Streptomyces clavuligerus. It acts as a suicide inhibitor of bacterial beta-lactamase enzymes.More

2-Fluoro-4-methylphenylboronic acid

CAS No: 170981-26-7

Formula: C7H8BFO2

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Off-White Crystalline PowderMore

Cromolyn

CAS No: 16110-51-3

Formula: C23H16O11

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

ChEBI: A dicarboxylic acid that is the bis-chromone derivative of glycerol. It is effective as a mast cell stabilizer.Solid.More

Clorprenaline

CAS No: 3811-25-4

Formula: C11H16ClNO

Categories: Active Pharmaceutical Ingredients > Respiratory Drugs

This product is a selective β2-receptor stimulant and has antispasmodic and relaxing effects on bronchial smooth muscle. It is used to treat bronchial asthma, asthmatic bronchitis, and bronchitis accompanied by emphysema.More

Ilaprazole

CAS No: 172152-36-2

Formula: C19H18N4O2S

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Ilaprazole (IY-81149) is a proton pump inhibitor; inhibits H+/K+-ATPase with an IC50 of 6.0 μM. More

Salicylsalicylic acid

CAS No: 552-94-3

Formula: C14H10O5

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Salsalate is a nonsteroidal anti-inflammatory drug (NSAID).Target:Salsalate is a medication that belongs to the salicylate and non-steroidal anti-inflammatory drug (NSAID) classes. Relative to other NSAIDs, Salsalate has a weak inhibitory effect on the cyclooxygenase enzyme and decreases the production of several pro inflammatory chemical signals such as interleukin-6, TNF-alpha, and C-reactive protein. Common conditions in which Salsalate may be indicated include inflammatory disordersMore

Tebipenem pivoxil

CAS No: 161715-24-8

Formula: C22H31N3O6S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Tebipenem Pivoxil is a novel oral carbapenem antibiotic.Target: AntibacterialTebipenem is a broad spectrum orally administered antibiotic, from the carbapenem subgroup of beta-lactam antibiotics. It was developed as a replacement drug to combat bacteria that had acquired antibiotic resistance to commonly used antibiotics. Tebipenem is formulated as the ester tebipenem pivoxil due to the better absorption and improved bioavailability of this form. It has performed well in clinical trialsMore

Auranofin

CAS No: 34031-32-8

Formula: C20H34AuO9PS

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Auranofin (SKF-39162) is a thioredoxin reductase (TrxR) inhibitor with an IC50 of 0.2 μM. More

Tandutinib

CAS No: 387867-13-2

Formula: C31H42N6O4

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Tandutinib (MLN518, CT53518) is a potent FLT3 antagonist with IC50 of 0.22 μM, also inhibits PDGFR and c-Kit, 15 to 20-fold higher potency for FLT3 versus CSF-1R and >100-fold selectivity for the same target versus FGFR, EGFR and KDR. IC50 value: 0.22 uM [1]Target: Flt3; PDGFRβ; c-Kitin vitro: Tandutinib has little activity against EGFR, FGFR, KDR, InsR, Src, Abl, PKC, PKA and MAPKs. Tandutinib inhibits IL-3-independent cell growth and FLT3-ITD autophosphorylation with an IC50 of 10-100More

Felbamate

CAS No: 25451-15-4

Formula: C11H14N2O4

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

White PowderMore

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Propacetamol

CAS No: 66532-85-2

Formula: C14H20N2O3

Categories: Active Pharmaceutical Ingredients > Amides

Antipyretics and analgesics are converted into paracetamol in the body. Used to treat pain and fever symptoms of various diseases.More

Naftifine hydrochloride

CAS No: 65473-14-5

Formula: C21H21N.ClH

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Naftifine Hydrochloride is a synthetic, broad spectrum, antifungal agent.Target: AntifungalNaftifine exhibits an interesting in vitro spectrum of activity against dermatophytes (38 strains; minimal inhibitory concentration (MIC) range 0.1 to 0.2 mg/mL), aspergilli (6 strains; MIC range, 0.8 to 12.5 mg/mL), Sporothrix schenckii (2 strains; MICs, 0.8 and 1.5 mg/mL), and yeasts of the genus Candida (77 strains; MIC range, 1.5 to greater than 100 mg/mL) [1]. The MIC of naftifine for C. albicMore

Tanespimycin

CAS No: 75747-14-7

Formula: C31H43N3O8

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

17-AAG is a potent HSP90 inhibitor with an IC50 of 5 nM, having a 100-fold higher binding affinity for tumour cell derived HSP90 than normal cell derived HSP90. More

Gliquidone

CAS No: 33342-05-1

Formula: C27H33N3O6S

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Gliquidone (AR-DF 26) is an anti-diabetic drug in the sulfonylurea class, used in the treatment of diabetes mellitus type 2. More

(αZ)-2-Amino-α-[[2-(1,1-dimethylethoxy)-1,1-dimethyl-2-oxoethoxy]imino]-4-thiazoleacetic acid

CAS No: 86299-47-0

Formula: C13H19N3O5S

Categories: Active Pharmaceutical Ingredients > Antibiotics

SolidMore

Danofloxacin mesylate

CAS No: 119478-55-6

Formula: C20H24FN3O6S

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

Crystalline SolidDanofloxacin is a fluoroquinolone antibiotic and a type II topoisomerase inhibitor. It has a broad antimicrobial spectrum. It can be used as an anti-infective agent for veterinary use only. More

Benztropine mesylate

CAS No: 132-17-2

Formula: C21H25NO.CH4O3S

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Benzotropine is a centrally-acting, antimuscarinic agent used as an adjunct in the treatment of Parkinson's disease.Target: mAChRBenzotropine is a centrally-acting, antimuscarinic agent used as an adjunct in the treatment of Parkinson's disease. It may also be used to treat extrapyramidal reactions, such as dystonia and Parkinsonism, caused by antipsychotics. Symptoms of Parkinson's disease and extrapyramidal reactions arise from decreases in dopaminergic activity which creates an imbalaMore

7-Methylindole

CAS No: 933-67-5

Formula: C9H9N

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

white to slightly beige shiny flakesMore

Pramiracetam

CAS No: 68497-62-1

Formula: C14H27N3O2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Pramiracetam is a nootropic drug derived from piracetam, and is more potent. Pramiracetam reportedly improved cognitive deficits associated with traumatic brain injuries. IC50 Value: Target: in vitro: Pramiracetam sulfate did not exhibit any affinity in vitro for dopaminergic , GABAergic, serotoninergic, adrenergic, muscarinic, adenosine (IC50 > 10 uM), and benzodiazepine receptors (IC50 > 1 uM) binding sites [1].in vivo: In a double-blind, randomized design, two groups of six subjects eMore

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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