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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 741 qualified manufacturers and 353 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.
4806 Active Pharmaceutical Ingredients items

(+)-Ketoprofen

CAS No: 22161-81-5

Formula: C16H14O3

Categories: Active Pharmaceutical Ingredients > Other Chemical Drugs

S-(+)-Ketoprofen is a potent inhibitor of both COX-1 and COX-2 with IC50s of 1.9 and 27 nM, respectively. More

(±)-Menthone

CAS No: 89-80-5

Formula: C10H18O

Categories: Active Pharmaceutical Ingredients > Perfuming

Menthone has a characteristic mint-like odor.More

Neratinib

CAS No: 698387-09-6

Formula: C30H29ClN6O3

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

ChEBI: A quinoline compound having a cyano group at the 3-position, a 3-chloro-4-(2-pyridylmethoxy)anilino group at the 4-position, a 4-dimethylamino-trans-but-2-enamido group at the 6-position, and an ethoxy group at the 7-position.More

Ondansetron hydrochloride dihydrate

CAS No: 103639-04-9

Formula: C18H19N3O.ClH.2H2O

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Ondansetron is a serotonin 5-HT3 receptor antagonist used mainly as anantiemetic (to treat nausea and vomiting), often following chemotherapy.Target: 5- HT3 ReceptorIC50 Value: in vitro: 5-HT evoked transient inward currents (EC50 = 3.4 microM; Hill coefficient = 1.8) that were blocked by the 5-HT3 receptor antagonist ondansetron (IC50 = 103 pM) [1]. The 5-HT3A receptor antagonist ondansetron (0.3 nM) reversibly inhibited the 5-HT (30 microM) signal by 70% and at 3 nM it abolished the reMore

1094 Active Pharmaceutical Ingredients Suppliers

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Robenidine

CAS No: 25875-51-8

Formula: C15H13Cl2N5

Categories: Active Pharmaceutical Ingredients > Veterinary Raw Materials

Coccidiostat (for poultry).More

Butoconazole

CAS No: 64872-76-0

Formula: C19H17Cl3N2S

Categories: Active Pharmaceutical Ingredients > Synthetic Anti-infective Drugs

ChEBI: A member of the class of imidazoles that is 1H-imidazole in which the hydrogen attached to the nitrogen is substituted by a 4-(4-chlorophenyl)-2-[(2,6-dichlorophenyl)sulfanyl]butyl group. An antifungal agent, it is used as its nitrate sa t in gynaecology for treatment of vulvovaginal infections caused by Candida species, particularly Candida albicans.More

8-Methoxypsoralen

CAS No: 298-81-7

Formula: C12H8O4

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

Methoxsalen (8-Methoxypsoralen) is a potent tricyclic furocoumarin suicide inhibitor of CYP (cytochrome P-450), is an agent used to treat psoriasis, eczema, vitiligo and some cutaneous Lymphomas in conjunction with exposing the skin to sunlight.Target: CYP (cytochrome P-450)Methoxsalen is a drug used to treat psoriasis, eczema, vitiligo, and some cutaneous lymphomas in conjunction with exposing the skin to UVA light from lamps or sunlight. Methoxsalen modifies the way skin cells receiveMore

Ebastine

CAS No: 90729-43-4

Formula: C32H39NO2

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

Ebastine(LAS-W 090;RP64305) is a long-acting and selective H1-histamine receptor antagonist.Target: Histamine H1 ReceptorEbastine is a H1 antihistamine with low potential for causing drowsiness. Ebastine (10 mg orally) causes brain histamine H1-receptor occupation of approximately 10%, consistent with its lower incidence of sedative effect, whereas (+)-chlorpheniramine occupied about 50% of brain H1-receptors even at a low but sedative dose of 2 mg; occupancy of (+)-chlorpheniramine wasMore

azelastine hydrochloride

CAS No: 153408-27-6

Formula: C22H24ClN3O·HCl

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

White SolidMore

azelastine hydrochloride

CAS No: 153408-28-7

Formula: C22H24ClN3O·HCl

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

Off-White SolidMore

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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