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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.
4842 Active Pharmaceutical Ingredients items

Atropine sulfate

CAS No: 55-48-1

Formula: C17H23NO3.1/2H2O4S

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Atropine sulfate is a competitive muscarinic acetylcholine receptor antagonist.IC50 value:Target: mAChRAtropine is a naturally occurring tropane alkaloid extracted from deadly nightshade (Atropa belladonna), Jimson weed (Datura stramonium), mandrake (Mandragora officinarum) and other plants of the family Solanaceae. Atropine is a competitive antagonist of the muscarinic acetylcholine receptors (acetylcholine being the main neurotransmitter used by the parasympathetic nervous system). AtrMore

Zinc gluconate

CAS No: 4468-02-4

Formula: C12H22O14Zn

Categories: Active Pharmaceutical Ingredients > Oral Care

It appears as white particles or crystalline powder with its molecule either containing or not containing three molecules of crystal water, being odorless and tasteless. It is easily soluble in water and slightly soluble in ethanol. Female mice by oral have a LD50 of 1.93g/k; male mice through oral have a LD50 of 2.99g/kg.More

Enalapril maleate

CAS No: 76095-16-4

Formula: C24H32N2O9

Categories: Active Pharmaceutical Ingredients > Circulatory System Drugs

Enalapril Maleate, the active metabolite of enalapril, is an angiotensin-converting enzyme (ACE) inhibitor.Target: ACEEnalapril is a prodrug that belongs to the angiotensin-converting enzyme (ACE) inhibitor class of medications. It is rapidly metabolized in the liver to enalaprilat following oral administration. Enalaprilat is a potent, competitive inhibitor of ACE, the enzyme responsible for the conversion of angiotensin I (ATI) to angiotensin II (ATII). ATII regulates blood pressure anMore

Adefovir dipivoxil

CAS No: 142340-99-6

Formula: C20H32N5O8P

Categories: Active Pharmaceutical Ingredients > Phosphines

Adefovir Dipivoxil works by blocking reverse transcriptase, an enzyme that is crucial for the hepatitis B virus (HBV) to reproduce in the body.Target: NRTIs; HBVAdefovir Dipivoxil works by blocking reverse transcriptase, an enzyme that is crucial for the hepatitis B virus (HBV) to reproduce in the body. Adefovir Dipivoxil is used for treatment of hepatitis B and herpes simplex virus infection [1-3]. Adefovir Dipivoxil is approved for the treatment of chronic hepatitis B in adults with evMore

Pramipexole

CAS No: 104632-26-0

Formula: C10H17N3S

Categories: Active Pharmaceutical Ingredients > Antiparkinson Agents

Off-White SolidChEBI: A member of the class of benzothiazoles that is 4,5,6,7-tetrahydro-1,3-benzothiazole in which the hydrogens at the 2 and 6-pro-S-positions are substituted by amino and propylamino groups, respectively.More

Levetiracetam

CAS No: 102767-28-2

Formula: C8H14N2O2

Categories: Active Pharmaceutical Ingredients > Nervous System Drugs

Levetiracetam(UCB L059) is a novel anticonvulsant with antihyperalgesic efficacy in inflammatory pain.Target: Calcium ChannelLevetiracetam is used to control some types of seizures in patients with epilepsy. This medicine cannot cure epilepsy and will only work to control seizures for as long as you continue to use it. The exact mechanism for levetiracetam is unknown. However, the drug binds to a synaptic vesicle protein, SV2A, which is believed to impede nerve conduction across synapsesMore

Methylcobalamin

CAS No: 13422-55-4

Formula: C63H91CoN13O14P

Categories: Active Pharmaceutical Ingredients > Vitamins and Minerals Medicines

Dark Red Crystalline PowderA vitamin B12 analog used as an intermediate in the synthesis of methane. It is responsible for the methylation of inorganic mercury by anaerobic bacteria in bottom sediments. Through the action of methylcobalamin in an anaerobic bacteria in bottom sediments of aquatic systems, arsenic(III) is methylated to methanearsonic acid then to cacodylic acid.More

Pine oil

CAS No: 8002-09-3

Categories: Active Pharmaceutical Ingredients > Perfuming

The production of essential oil from this pine has been abandoned. The needles are probably distilled with those from spruce. A large addition of white pine needles to spruce needles tends to lower considerably the ester content of the distilled spruce oil.More

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Glucagon

CAS No: 16941-32-5

Formula: C153H225N43O49S

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

White or almost white powderProduced by the α cells of the islands of Langerhans and also by the gastric mucosa. It is opposite in effect to insulin. It appears to be a straight-chain polypeptide with a molecular weight of approximately 3500. Small amounts have been detected in commproduced by recombinant DNA technology ismarketed by Novo Nordisk (glucagon [recombinant] hydrochloride,GlucaGen HypoKit, GlucaGen Diagnostic Kit)and by Eli Lilly (glucagon [recombinant] Emergency Kit). The hyperglyMore

Sertraline

CAS No: 79617-96-2

Formula: C17H17Cl2N

Categories: Active Pharmaceutical Ingredients > Amides

ChEBI: A member of the class of tetralins that is tetralin which is substituted at positions 1 and 4 by a methylamino and a 3,4-dichlorophenyl group, respectively (the S,S diastereoisomer). A selective serotonin-reuptake inhibito (SSRI), it is administered orally as the hydrochloride salt as an antidepressant for the treatment of depression, obsessive-compulsive disorder, panic disorder and post-traumatic stress disorder.More

Quinine

CAS No: 130-95-0

Formula: C20H24N2O2

Categories: Active Pharmaceutical Ingredients > Hair Conditioning

Quinine is odorless, but has an intense, bitter taste white to light yellow crystal powdeA poisonous ALKALOID found in the bark of the cinchona tree of South America. It is used in treating malaria. quinine: A white solid, C20H24N2O2·3H2O, m.p. 57°C. It is apoisonous alkaloid occurring in thebark of the South American cinchonatree, although it is now usually producedsynthetically. It forms saltsand is toxic to the malarial parasite.More

(+)-Vitamin D2

CAS No: 50-14-6

Formula: C28H44O

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

1. For the prevention and treatment of vitamin D deficiency. Such as: vegans, parenteral nutrition patients, pancreatic insufficiency with malabsorption syndrome, hepatobiliary disease (liver damage, cirrhosis, obstructive jaundice), small bowel disease (lipid diarrhea, localized enteritis, long-term diarrhea), stomach Removal and so on.More

Famotidine

CAS No: 76824-35-6

Formula: C8H15N7O2S3

Categories: Active Pharmaceutical Ingredients > Digestive System Drugs

Famotidine is a competitive histamine H2-receptor antagonist. Its main pharmacodynamic effect is the inhibition of gastric secretion.Target: Histamine H2 ReceptorFamotidine is a histamine H2-receptor antagonist that inhibits stomach acid production, and it is commonly used in the treatment of peptic ulcer disease (PUD) and gastroesophageal reflux disease (GERD/GORD). Famotidine Group(2 mg/kg/day) were significantly lower than the equivalent parameters for the Control Group on both the thMore

Bimatoprost

CAS No: 155206-00-1

Formula: C25H37NO4

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Crystalline SolidBimatoprost was first introduced in the US and Brazil as Lumigan, an ophthalmic solution (0.03%) for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension, a proven risk of glaucomatous visual field loss. Bitamoprost is a new agent belonging to the PGF2α analog class of prostamides launched in this indication after latanoprost, the most efficaceous topical medication currently available. More

Anethole

CAS No: 104-46-1

Formula: C10H12O

Categories: Active Pharmaceutical Ingredients > Denaturant

Anethole is a type of aromatic compound that occurs widely in nature, widely used as a flavoring substance.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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