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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 393 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.
4851 Active Pharmaceutical Ingredients items

Bendamustine hydrochloride

CAS No: 3543-75-7

Formula: C16H21Cl2N3O2.ClH

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Bendamustine hydrochloride is a DNA cross-linking agent that causes DNA breaks, with alkylating and antimetabolite properties. More

Sodium hypochlorite

CAS No: 7681-52-9

Formula: ClHO.Na

Categories: Active Pharmaceutical Ingredients > Oxidising

Sodium hypochlorite, NaOCl, is an air-unstable,pale green crystalline solid that is soluble in cold water, decomposes in hot water, and has a sweet aroma. It generally is available in one of two strengths. The household liquid bleach contains about 5.25 wt% NaCIO. The commercial product(sometimes called 15% bleach) contains 150g/L available chlorine. This is equivalent to about 13 wt% sodium hypochlorite. Sodium hypochlorite is used as a bleaching agent for paper pulp and textiles, as an oxidizMore

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

Nintedanib

CAS No: 656247-17-5

Formula: C31H33N5O4

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

BIBF 1120 is a potent triple angiokinase inhibitor for VEGFR1/2/3, FGFR1/2/3 and PDGFRα/β with IC50s of 34 nM/13 nM/13 nM, 69 nM/37 nM/108 nM and 59 nM/65 nM, respectively. More

(±)-Tetrahydropalmatine

CAS No: 2934-97-6

Formula: C21H25NO4

Categories: Active Pharmaceutical Ingredients > Antipyretic Analgesics

Tetrahydropalmatine, an active component isolated from corydalis, acts through inhibition of amygdaloid release of dopamine to inhibit an epileptic attack in rats. More

Glycopyrrolate

CAS No: 596-51-0

Formula: C19H28NO3.Br

Categories: Active Pharmaceutical Ingredients > Amides

Glycopyrrolate(Glycopyrronium Br) is a muscarinic competitive antagonist used as an antispasmodic.IC50 Value:Target: mAChR (Muscarinic acetylcholine receptor M1)in vitro: Glycopyrrolate showed no selectivity in its binding to the M1-M3 receptors. Kinetics studies, however, showed that glycopyrrolate dissociates slowly from HASM muscarinic receptors (60% protection against [3H]-NMS binding at 30 nM) compared to ipratropium bromide [1].in vivo: Glycopyrrolate (1 mg) tablets were then adminMore

Lactulose

CAS No: 4618-18-2

Formula: C12H22O11

Categories: Active Pharmaceutical Ingredients > Skin Conditioning

Lactulose is a non-absortable sugar used in the treatment of constipation and hepatic encephalopathy. It generally begin working after eight to twelve hours but may take up to two days to improve constipation. More

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Moxidectin

CAS No: 113507-06-5

Formula: C37H53NO8

Categories: Active Pharmaceutical Ingredients > Antiparasitic Drugs

Moxidectin(ProHeart 6; CL301423; Cydectin) is an anthelmintic drug which kills parasitic worms (helminths), and is used for the prevention and control of heartworm and intestinal worms.IC50 value:Target: Anti-parasiticMoxidectin is a semisynthetic derivative of nemadectin, which is produced by fermentation by Streptomyces cyano-griseus. Moxidectin treats and controls some of the most common internal and external parasites by selectively binding to a parasite's glutamate-gated chloride ioMore

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

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

Corticotropin

CAS No: 9002-60-2

Formula:

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

ChEBI: A polypeptide hormone produced and secreted by the pituitary gland comprising 39 amino acid residues coupled in a linear sequence. The N-terminal 24-amino acid segment is identical in all species and contains the adrenocorticotrophic act vity. Corticotropin stimulates the cortex of the adrenal gland and boosts the synthesis of corticosteroids, mainly glucocorticoids but also sex steroids (androgens). It is used in the treatment of certain neurological disorders such as infantile spasms 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

Bepotastine besilate

CAS No: 190786-44-8

Formula: C21H25ClN2O3.C6H6O3S

Categories: Active Pharmaceutical Ingredients > Antineoplastic Agents

Off-White to Light Beige SolidChEBI: An organosulfonate salt obtained by combining equimolar amounts of bepotastine and benzenesulfonic acid. A topical, selective and non-sedating histamine (H1) receptor antagonist used for treatment of itching associated with allergic co junctivitis.Betotastine was introduced in Japan for the treatment of allergic rhinitis. This structurally-related derivative of chlorpheniramine and ebastine is prepared by condensation of optically-resolved 4-[1-(4-chloropMore

Methimazole

CAS No: 60-56-0

Formula: C4H6N2S

Categories: Active Pharmaceutical Ingredients > Hormones and the Endocrine System

Methimazole(Tapazole, Northyx) is an antithyroid medicine.Target: OthersMethimazole is an antithyroid drug, and part of the thioamide group. Like its counterpart propylthiouracil, a major side effect of treatment is agranulocytosis. Methimazole is a drug used to treat hyperthyroidism, a condition that occurs when the thyroid gland begins to produce an excess of thyroid hormone. The drug may also be taken before thyroid surgery to lower thyroid hormone levels and minimize the effects of tMore

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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