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Home > Pharmaceutical Intermediates > Bulk Drug Intermediates (Find 629 items)
The quality of pharmaceutical intermediates plays a crucial role in the efficacy and safety of the final drug. Our authorized vendors offer outstanding bulk drug intermediates, the very raw materials for the pharmaceutical production. Explore specific product information, such as CAS numbers, characteristics, and technical data, to improve production efficiency during the drug production process.

5-Methoxyindole

(1006-94-6)
white to light brownish crystalline powder

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5-Chloroindole

(17422-32-1)
5-Chloroindole is a halo-substituted indole used in the preparation of neurologically active compounds such as atypical antipsychotic agents. 5-Chloroindole has been shown to depress serotonin levels in the brainstem and telencephalon.

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5-Fluoroindole

(399-52-0)
• ;Reactant for preparation of 5-HT6 receptor ligands1• ;Reactant for preparation of tryptophan dioxygenase inhibitors pyridyl-ethenyl-indoles as potential anticancer immunomodulators2• ;Reactant for preparation of antitumor agents3• ;Reactant for preparation of antibacterial agents4• ;Reactant for preparation of immunosuppressive agents5• ;Reactant for preparation of Sodium-Dependent Glucose Co-transporter 2 (SGLT2) Inhibitors for the Management of Hyperglycemia in Diabetes6• ;Reactant for prep

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5-Methoxytryptamine

(608-07-1)
A tryptamine derivative that is closely related to the neurotransmitter Melatonin (M215000) and Serotonin (S274980). It acts as a full agonist at the 5-HT1, 5-HT2, 5-HT4, 5-HT6, and 5-HT7 receptors but has no affinity for the 5-HT3 receptor. Reactant for preparation of:• ;Carboline disaccharide domain of shishijimicin A1• ;Melatonin analogs for the reduction of intraocular pressure2• ;5-HT4 receptor ligands3• ;inhibitors of sortase A and isocitrate lyase4• ;Therapeutic agents for treatment of is

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5,6-Dimethoxy-1-indanone

(2107-69-9)
An intermediate useful in the preparation of Donepezil.

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Bulk drug intermediates are the drugs used as raw materials for the production of bulk drugs, or they can refer to a material produced during synthesis of an API that must undergo further molecular change or processing before it becomes an API.

More Information

Intermediates are unavoidable products of chemical reactions and are widely used in pharmaceuticals, materials, chemicals, and other industries.

In the pharmaceutical industry, an active pharmaceutical ingredient (API) is a product of a synthesis process that has been completed and is used in the manufacture of bulk drugs and intermediates are some chemical raw materials or chemical products used in the synthesis process of APIs.

The application industries of pharmaceutical intermediates mainly include antibiotics, anticancer drugs, cardiovascular drugs, neurological drugs, hormone drugs, and immunosuppression.

Functions of intermediates

Intermediates serve a variety of responsibilities in the drug production process.

● They can serve as a link between the API and the finished medicine. The drug production process can be broken down into multiple steps using intermediates, each requiring a different chemical.

● They can modify reaction conditions and synthesis pathways, increasing drug synthesis efficiency and yields.

● They can be employed to modify the purification, crystallization, and solid characteristics of medicines.

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