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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 744 qualified manufacturers and 392 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.
4852 Active Pharmaceutical Ingredients items

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

2-Fluoro-4-methylphenylboronic acid

CAS No: 170981-26-7

Formula: C7H8BFO2

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

Off-White Crystalline PowderMore

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

Gestonorone

CAS No: 2137-18-0

Formula: C20H28O3

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Mezlocillin

CAS No: 51481-65-3

Formula: C21H25N5O8S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

ChEBI: A penicillin in which the substituent at position 6 of the penam ring is a (2R)-2-[3-(methanesulfonyl)-2-oxoimidazolidine-1-carboxamido]-2-phenylacetamido group.More

Mizoribine

CAS No: 50924-49-7

Formula: C9H13N3O6

Categories: Active Pharmaceutical Ingredients > Drugs Influencing Immune Function

Mizoribine(NSC 289637; HE 69; β-Bredinin) is an immunosuppressive agents (IC50=100 uM) that inhibit the proliferation of lymphocytes selectively, via inhibition of IMPDH.IC50 Value:Target: IMPDHin vitro: Unlike azathioprine, Mizoribine is not taken up by nucleic acids in the cell. Instead, after phosphorylation MZR-5 -monophosphate inhibits GMP synthesis by the antagonistic blocking of IMPDH (Ki = 10(-8)M) and GMP- synthetase (Ki =10(-5) M) [1]. Pretreatment of cells with MZR partially,More

β-Propiolactone

CAS No: 57-57-8

Formula: C3H4O2

Categories: Active Pharmaceutical Ingredients > Vitamins and Minerals Medicines

Colorless to light yellow liqui β-Propiolactone is a colorless liquid which slowly hydrolyzes to hydracrylic acid and must be cooled to remain stable.More

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

1136 Active Pharmaceutical Ingredients Suppliers

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Felbamate

CAS No: 25451-15-4

Formula: C11H14N2O4

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

White PowderMore

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

Tobramycin sulphate

CAS No: 49842-07-1

Formula: C18H39N5O13S

Categories: Active Pharmaceutical Ingredients > Antibiotics

Tobramycin sulfate (Nebramycin Factor 6 sulfate) is a parenterally administered, broad spectrum aminoglycoside antibiotic that is widely used in the treatment of moderate to severe bacterial infections due to sensitive organisms[1]. More

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

Fleroxacin

CAS No: 79660-72-3

Formula: C17H18F3N3O3

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

Fleroxacin is a broad-spectrum antimicrobial fluoroquinolone.Target: AntibacterialFleroxacin (Ro 23-6240; AM-833) is a new trifluorinated quinolone exhibiting high activity against a broad spectrum of gram-negative and gram-positive bacteria. Fleroxacin is characterized pharmacokinetically by a long elimination half-life (9 to 10 h) and high concentrations in plasma (e.g., maximum concentration of 2.3 micrograms/ml after an oral dose of 200 mg) [1]. Fleroxacin is effective against HaemopMore

Landiolol hydrochloride

CAS No: 144481-98-1

Formula: C25H39N3O8.ClH

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Landiolol hydrochloride (ONO1101 hydrochloride) is a highly beta1 selective ultra-short acting beta-blocker (β1/β2 selectivity = 255:1, a half-life of 4 min), acts as an adrenoceptor antagonist[1]. More

Diammonium glycyrrhizinate

CAS No: 79165-06-3

Formula: C42H62O16.2H3N

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Diammonium Glycyrrhizinate, isolated from the licorice root, is a widely used anti-inflammatory agent[1]. More

Ethyl imidazole-4-carboxylate

CAS No: 23785-21-9

Formula: C6H8N2O2

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

White to light yellow crystal, powder or crystalline powderMore

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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