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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 376 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.
4830 Active Pharmaceutical Ingredients items

Epinastine

CAS No: 80012-43-7

Formula: C16H15N3

Categories: Active Pharmaceutical Ingredients > Antiallergic Drugs

Epinastine(WAL801) is an antihistamine and mast cell stabilizer that is used in eye drops to treat allergic conjunctivitis.Target: Histamine ReceptorEpinastine shows a high affinity to H1-receptors in receptor binding studies in the guinea pig ileum. Epinastine inhibits histamine-induced reactions in the skin or the lung of rats, dogs and guinea pigs [1]. Epinastine is able to displace specific [3H]NC-5Z binding at low concentrations in the locust nervous tissue. Epinastine binds to theMore

Phentolamine

CAS No: 50-60-2

Formula: C17H19N3O

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

ChEBI: A substituted aniline that is 3-aminophenol in which the hydrogens of the amino group are replaced by 4-methylphenyl and 4,5-dihydro-1H-imidazol-2-ylmethyl groups respectively. An alpha-adrenergic antagonist, it is used fo the treatment of hypertension.More

Nitrofurazone

CAS No: 59-87-0

Formula: C6H6N4O4

Categories: Active Pharmaceutical Ingredients > Antimicrobials

Nitrofural is a bactericidal compound used as an antibiotic most commonly in the form of ointments.Target: AntibacterialNitrofurazone, a nitroaromatic drug, is a broad spectrum antibiotic which has until now been considered as activated in bacteria by nitroreductases. Its use in medicine has become less frequent as safer and more effective products have become available, and it has been discontinued in the US.Nitrofurazone (NF) and its derivative, hydroxymethylnitrofurazone (NFOH), haveMore

Lisinopril dihydrate

CAS No: 83915-83-7

Formula: C21H31N3O5.2H2O

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Lisinopril Dihydrate is angiotensin-converting enzyme inhibitor, used in treatment of hypertension, congestive heart failure, and heart attacks.Target: ACELisinopril is a potent, competitive inhibitor of angiotensin-converting enzyme (ACE), the enzyme responsible for the conversion of angiotensin I (ATI) to angiotensin II (ATII). ATII regulates blood pressure and is a key component of the renin-angiotensin-aldosterone system (RAAS). Lisinopril may be used to treat hypertension and symptoMore

Ipriflavone

CAS No: 35212-22-7

Formula: C18H16O3

Categories: Active Pharmaceutical Ingredients > Fluid, Electrolyte, and Acid-base Balance

Ipriflavone is a synthetic isoflavone derivative used to suppress bone resorption.More

Trichloroacetic acid

CAS No: 76-03-9

Formula: C2HCl3O2

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

Trichloroacetic acid is a colorless crystalline solid which is used in liquid solutions. Trichloroacetic acid, is a colorless crystalline solid. Trichloroacetic acid absorbs moisture from air and forms a syrup. Trichloroacetic acid is soluble in water with release of heat. Trichloroacetic acid is corrosive to metals and tissue. More

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Econazole nitrate

CAS No: 24169-02-6

Formula: C18H15Cl3N2O.HNO3

Categories: Active Pharmaceutical Ingredients > Inhibitor Drugs

Econazole nitrate (Spectazole) is an imidazole class antifungal medication.Target: AntifungalEconazole nitrate is an antifungal medication of the imidazole class. It is used as a cream to treat skin infections such as athlete's foot, tinea, pityriasis versicolor, ringworm, and jock itch. In each of these tests the activity of econazole was compared with that of different reference drugs. Vaginal candidiasis in rats was cured after oral administration of econazole. Toxicity and teratogeniMore

Propylthiouracil

CAS No: 51-52-5

Formula: C7H10N2OS

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Propylthiouracil(6-Propyl-2-thiouracil) is a thyroperoxidase and 5'-deiodinase inhibitor. Target: Thyroperoxidase (TPO)Propylthiouracil (PTU) is a thiouracil-derived drug used to treat hyperthyroidism (including Graves' disease) by decreasing the amount of thyroid hormone produced by the thyroid gland [1]. The antithyroid drug 6-propylthiouracil (PTU) was shown to have an unexpectedly prolonged inhibitory effect on iodination in the thyroid glands of rats. Eighteen hours after injectionMore

Valsartan

CAS No: 137862-53-4

Formula: C24H29N5O3

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Valsartan (CGP-48933) is an angiotensin II receptor antagonist for treatment of high blood pressure and heart failure. More

Naltrexone

CAS No: 16590-41-3

Formula: C20H23NO4

Categories: Active Pharmaceutical Ingredients > Specialty Drugs

ChEBI: An organic heteropentacyclic compound that is naloxone substituted in which the allyl group attached to the nitrogen is replaced by a cyclopropylmethyl group. A mu-opioid receptor antagonist, it is used to treat alcohol dependence.Naltrexone is a pure opioid antagonist at allopioid receptor subtypes with the highest affinity for theμ-receptor. Naltrexone is orally bioavailable and blocksthe effects of opiate agonists for approximately 24 hoursafter a single dose of 50 mg. It produces noMore

Leucomycin

CAS No: 1392-21-8

Formula:

Categories: Active Pharmaceutical Ingredients > Antibiotics

Leucomycin complex (kitasamycin) is a family of closely related macrocyclic lactone antibiotics produced by Streptomyces kitasatoensis, discovered in 1953. The complex contained over 14 components with analogues A1, A4, A5, and A13 being the most abundant analogues. Leucomycin complex is used as an animal health product for control of Gram positive bacteria, Gram negative cocci, leptospira and mycoplasma.More

Haloperidol

CAS No: 52-86-8

Formula: C21H23ClFNO2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Haloperidol is a potent dopamine D2 receptor antagonist, widely used as an antipsychotic. More

Fluvoxamine

CAS No: 54739-18-3

Formula: C15H21F3N2O2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Fluvoxamine is an antidepressant which functions pharmacologically as a selective serotonin reuptake inhibitor.Target: SSRIsFluvoxamine is effective in inhibiting 5-ht uptake by blood platelets and brain synaptosomes. The antagonism by fluvoxamine of the reserpine-induced lowering of the pentamethylenetetrazole convulsive threshold can be regarded as due to an effect upon 5-HT uptake. In contrast to the effects of desmethylimipramine and imipramine, no stimulatory effects are found in raMore

Mitoxantrone

CAS No: 65271-80-9

Formula: C22H28N4O6

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Mitoxantrone is a topoisomerase II inhibitor; also inhibits protein kinase C (PKC) activity with an IC50 of 8.5 μM. 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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