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Home > Pharmaceutical Intermediates > Bulk Drug Intermediates (Find 18216 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.

2,2-Bis(hydroxymethyl)butanoic acid

(10097-02-6)
2,2-bis(hydroxymethyl)butyric acid is a good crosslinking agent and hydrophilic agent, or used to produce water-based high molecule system, is widely used in water soluble PU system, polyester resin and epoxy ester. With good solubility, it also is widely used in coating of water soluble PU system, adhesive and leather coating agent.. It will become a new kind of environment-friendly substitute of 2,2-Bis(hydroxymethyl)propionic acid.

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2-Butenoic acid, 4-(dimethylamino)-, hydrochloride (1:1), (2E)-

(848133-35-7)
Reagent used in the preparation of tyrosine kinase inhibiting antitumor agents.Organic synthesis intermediate, lenatinib intermediate, afatinib intermediate

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Urolithin A

(1143-70-0)
Urolithin A is an intestinal metabolite of ellagic acid with antioxidant and antiproliferative effects; inhibits T24 and Caco-2 cell growth with IC50 values of 43.9 and 49 μM, respectively.

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3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione

(520-45-6)
Dehydroacetic acid (DHS) is used as stabilizer for cosmetic and pharmaceutical products due to its fungicide and bactericide activity, as additive for PVC-stabilizers and for the syntheses of veterinary medicines. Product Data Sheet Geogard(R) 111a preservative is based on dehydroacetic acid (DHA) and therefore are recognized by major cosmetic, toiletry and fragrance regulatory authorities worldwide for use in cosmetic and personal care products. Geogard(R) 221 preservative is based on dehydroa

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3-Fluorobenzyl bromide

(456-41-7)
3-Fluorobenzyl Bromide is a substituted benzyl bromide used as a reagent in the preparation of wide range of biologically active compounds such as antidiabetic drugs, anti-virals and anti-cancer agen ts.

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Clopyralid

(1702-17-6)
Systemic post-emergence herbicide for use in food crops and mesquite.Herbicide: Clopyralid is used to control annual and perennial broadleaf weeds on rangeland, pastures, turf and lawns, rights-of-way and a few agricultural products such as sugar beets, oats, barley, mint and wheat.

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3,4-Epoxycyclohexylmethyl 3,4-epoxycyclohexanecarboxylate

(2386-87-0)
Intermediate of epoxy resin; coating of food packaging materials; can be used for light modeling and making medical models; intermediate of electronic materials; automotive primer; high-voltage cable

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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.

Frequently Asked Questions

What are Bulk Drug Intermediates?

Bulk Drug Intermediates are chemical compounds produced during the multi-step synthesis of Active Pharmaceutical Ingredients (APIs). They are not yet the final API but play a critical role in the manufacturing process. These intermediates must meet strict quality and purity standards to ensure the safety and efficacy of the final drug product. Understanding their function helps pharmaceutical manufacturers maintain compliance and optimize production efficiency.

How do Bulk Drug Intermediates differ from APIs?

While both Bulk Drug Intermediates and Active Pharmaceutical Ingredients (APIs) are essential in drug manufacturing, they serve different roles. Intermediates are precursor molecules formed during synthesis steps before the final API is created. APIs are the biologically active components responsible for the therapeutic effect in a medication. Intermediates typically undergo further chemical transformation, whereas APIs are formulated directly into dosage forms like tablets or injections.

What quality standards apply to Bulk Drug Intermediates?

Bulk Drug Intermediates must comply with stringent regulatory guidelines, including Good Manufacturing Practices (GMP), especially if they are used in the production of regulated pharmaceuticals. Key quality parameters include identity, purity, assay, residual solvents, and impurity profiles. Reputable suppliers provide comprehensive Certificates of Analysis (CoA) and often adhere to ICH Q7 guidelines to ensure consistency, safety, and traceability throughout the supply chain.

How to choose a reliable supplier for Bulk Drug Intermediates?

Selecting a trustworthy supplier for Bulk Drug Intermediates involves evaluating several factors:1. Regulatory compliance—verify GMP certification and audit history.2. Analytical capabilities—ensure they offer full documentation like CoA, MSDS, and stability data.3. Scalability and reliability—assess their production capacity and on-time delivery record.4. Technical support—look for suppliers with experienced chemists who can assist with process optimization or regulatory queries.Partnering with an established, audited supplier minimizes risk and ensures consistent intermediate quality.

What are common applications of Bulk Drug Intermediates in pharmaceutical manufacturing?

Bulk Drug Intermediates are primarily used in the stepwise synthesis of APIs for a wide range of medications, including antibiotics, antivirals, cardiovascular drugs, and oncology treatments. They enable modular and efficient production by allowing manufacturers to isolate and purify compounds at each reaction stage. Additionally, custom intermediates support the development of novel drug candidates during R&D and clinical trials, making them indispensable in both generic and innovative drug pipelines.

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