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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

Ceftibuten

CAS No: 97519-39-6

Formula: C15H14N4O6S2

Categories: Active Pharmaceutical Ingredients > Antibiotics

Ceftibuten(Sch39720) is a third-generation cephalosporin antibiotic.IC50:Target: AntibacterialCeftibuten displayed high activity against Haemophilus influenzae and Branhamella catarrhalis. There was reduced activity against Streptococcus pneumoniae (MIC90 16 mg/l). The protein binding of Ceftibuten was 77% and the primary target site PBP 3. A high degree of stability to beta-lactamase hydrolysis was observed. [1] More

Iguratimod

CAS No: 123663-49-0

Formula: C17H14N2O6S

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

In August 2011, China’s State FDA approved Simcere Pharmaceutical Group’s new drug application for iguratimod (T-614), a disease modifying anti-rheumatic drug (DMARD) for the treatment of rheumatoid arthritis (RA). Preclinical in vivo studies indicated that iguratimod was effective in an established adjuvant-induced arthritis model (ED40=3.6 mg/kg) in rats and also efficacious in a type II collagen-induced arthritis model in DBA/1J mice at 30 mg and 100 mg/kg.More

Carboprost

CAS No: 35700-23-3

Formula: C21H36O5

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Off- White SolidMore

Hydralazine

CAS No: 86-54-4

Formula: C8H8N4

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Yiellow SolidMore

Riociguat

CAS No: 625115-55-1

Formula: C20H19FN8O2

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Riociguat is an oral stimulator of soluble guanylate cyclase (sGC) used in the treatment of pulmonary hypertension. More

Streptozotocin

CAS No: 18883-66-4

Formula: C8H15N3O7

Categories: Active Pharmaceutical Ingredients > Antibiotics

Streptozocin is a potent DNA-methylating agent, with IC50s of 11.7, 904 and 1024 μg/mL in HL60, K562 and C1498 cells respectively. More

(±)-Pranoprofen

CAS No: 52549-17-4

Formula: C15H13NO3

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Pranoprofen is a non-steroidal anti-inflammatory drug used in ophthalmology. Target: PGE2Pranoprofen 0.1% was found to be as effective as diclofenac sodium 0.1% in reducing inflammation and pain after strabismus surgery. Pranoprofen could be used as a safe and effective anti-inflammatory alternative for the treatment of inflammation following strabismus surgery [1]. pranoprofen has efficacy equivalent to a moderate-potency corticosteroid with a better safety profile. It should be consideMore

Proparacaine hydrochloride

CAS No: 5875-06-9

Formula: C16H26N2O3.ClH

Categories: Active Pharmaceutical Ingredients > Anesthetic Agents

Proparacaine Hydrochloride is a voltage-gated sodium channels antagonist with ED50 of 3.4 mM.IC50 Value: 3.4 mM(ED50) [1]Target: Sodium Channelin vitro: Proparacaine is more potent and less toxic than cocaine [1]. Proparacaine significantly increases in FHV-1 (P < 0.01), C. felis, and 28S rDNA Ct values when fusidic acid is used [2].in vivo: Proparacaine inhibits corneal epithelial migration and adhesion through alteration of the actin cytoskeleton [3]. Proparacaine acts like bupivacaineMore

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Methylthiouracil

CAS No: 56-04-2

Formula: C5H6N2OS

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Methylthiouracil is an antithyroid agent. Methylthiouracil suppresses the production TNF-α and IL-6, and the activation of NF-κB and ERK1/2. More

Pemirolast

CAS No: 69372-19-6

Formula: C10H8N6O

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

SolidMore

Mizolastine

CAS No: 108612-45-9

Formula: C24H25FN6O

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

White SolidMizolastine was marketed in Germany and Switzerland as Mizollen for the symptomatic relief of seasonal and perennial allergic rhinoconjunctivitis and urticaria. Mizolastine is a new long-acting, orally active antihistaminic agent with a rapid onset of action ; the two most recent H1 antagonists launched were fexofenadine, metabolite of terfenadine (Sepracor, 1996) and Olopatadine (Kyowa Hakko, 1997). Mizolastine can be prepared in 2 steps from 2-chloro 1- (4-fluorobenzyl)benzimMore

Amrinone

CAS No: 60719-84-8

Formula: C10H9N3O

Categories: Active Pharmaceutical Ingredients > Amides

Crystalline SolidMore

Ethambutol hydrochloride

CAS No: 1070-11-7

Formula: C10H24N2O2.2ClH

Categories: Active Pharmaceutical Ingredients > Amides

Ethambutol Dihydrochloride is a bacteriostatic antimycobacterial agent, which obstructs the formation of cell wall by inhibiting arabinosyl transferases.Target: AntibacterialEthambutol directly affects two polymers, arabinogalactan (AG) and lipoarabinomannan (LAM) in Mycobacterium smegmatis. In M. smegmatis, Ethambutol inhibits synthesis of arabinan completely and inhibits AG synthesis most likely as a consequence of this; more than 50% of the cell arabinan is released from the bacteriaMore

Iodoform

CAS No: 75-47-8

Formula: CHI3

Categories: Active Pharmaceutical Ingredients > Antimicrobials

yellow solid with a characteristic pungent and Iodoform is a yellow or greenish-yellow powder or crystalline solid that is volatile with steam and contains 96.69% iodine. It has a very characteristic pungent odor. An odor threshold of 0.005 ppm has been reported.More

Pralidoxime chloride

CAS No: 51-15-0

Formula: C7H9N2O.Cl

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

Pralidoxime chloride is a useful agent in the treatment of organophosphate poisoning. Pralidoxime binds to organophosphate-inactivated acetylcholinesterase, used to combat poisoning by organophosphates or acetylcholinesterase inhibitors (nerve agents) in conjunction with atropine and diazepam. 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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