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Reliable Active Pharmaceutical Ingredient Manufacturer Supporting Global Healthcare

An Active Pharmaceutical Ingredient (API) is the biologically active substance within a drug that exerts its core therapeutic efficacy; it serves as the fundamental cornerstone of pharmaceutical research, development, and manufacturing. As a specialized brand deeply rooted in the pharmaceutical sector, Cosper leverages China's comprehensive pharmaceutical industrial ecosystem to create a series of high-purity, high-stability API products—centering its operations on compliant manufacturing, meticulous quality control, and customized services.


As a trusted supplier, we focus on major therapeutic areas—including oncology, anti-infectives, and cardiovascular medicine. We strictly adhere to GMP guidelines and international pharmacopoeia standards, maintaining rigorous quality control throughout the entire process—from raw material selection to finished product release. By providing stable and reliable API solutions to pharmaceutical companies and research institutions worldwide, we facilitate the safe and efficient market launch of new medications.


Core Values

1. The Core of Efficacy: APIs determine a drug's therapeutic effect, mechanism of action, and scope of application; they constitute the central target of pharmaceutical research and development.

2. The Cornerstone of Safety: An API's purity, impurity profile, and stability directly impact a drug's safety profile, necessitating strict compliance with rigorous regulatory standards.

3. The Core of the Industry: API manufacturing represents a critical link in the pharmaceutical supply chain, bridging the gap between chemical raw materials and finished drug formulations, thereby influencing the stability of the global pharmaceutical supply.


Product Categories

Cosper's API portfolio spans multiple therapeutic areas, with core categories including:

1. Anti-Infectives: Antibiotic APIs such as Amoxicillin, Cephalosporins, and Azithromycin.

2. Cardiovascular/Chronic Disease Management: APIs for chronic disease treatment, such as Metformin, Atorvastatin, and Amlodipine.

3. Oncology: APIs for targeted therapies, such as Imatinib and Sorafenib.

4. Antipyretics & Analgesics: Commonly used APIs such as Acetaminophen and Ibuprofen.


Core Advantages

1. Compliant Manufacturing & Comprehensive Qualifications

As a professional manufacturer, Cosper operates its own standardized manufacturing facilities. We strictly adhere to international standards—including China GMP, US USP, and European EP—and hold official certifications from regulatory bodies such as the FDA and EMA. Our entire production process is fully traceable, ensuring that our products consistently meet global regulatory requirements.


2. High-Purity Quality Control, Stable Quality

- Employing advanced synthesis processes and purification technologies, the product maintains a stable purity of ≥99.5%, with impurity levels kept below 0.1%;

- A comprehensive quality testing system has been established, equipped with precision instruments such as HPLC, GC, and MS to conduct full-scope testing on every product batch;

- Key parameters—including moisture content, residual solvents, and crystal form—are strictly controlled to ensure the product meets stability standards throughout its entire shelf life.


3. Customized Services, Flexible Supply

- We offer a one-stop service encompassing process R&D, pilot-scale amplification, and large-scale manufacturing; Active Pharmaceutical Ingredients (APIs) with specific specifications, crystal forms, or purity levels can be customized to meet client requirements;

- Production capacity is flexibly adjusted to ensure the reliable delivery of both small-batch custom orders and large-volume requests, thereby shortening lead times.


4. Technological Innovation, Green Manufacturing

- A professional R&D team has been assembled to continuously optimize synthesis routes, enhance product yields, and reduce production costs;

- We adopt eco-friendly, "green" manufacturing processes to minimize the use of organic solvents and reduce waste emissions, aligning with the principles of sustainable development.

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Crisaborole

Crisaborole

Crisaborole (CAS 906673-24-3) is a boron-containing, non-steroidal topical phosphodiesterase 4 (PDE4) inhibitor. The molecule features a benzoxaborole core—a boron atom incorporated into a five-membered oxaborole ring fused to a benzene ring—substituted with a 4-cyanophenoxy group.
Rivaroxaban

Rivaroxaban

Rivaroxaban (CAS 366789-02-8) is an orally active, direct Factor Xa inhibitor. The molecule features an oxazolidinone core with a morpholinone substituent and a chlorothiophene carboxamide side chain. This structural arrangement enables Rivaroxaban to directly inhibit Factor Xa, blocking the amplification of the coagulation cascade and thrombin generation.
Ropivacaine Hydrochloride

Ropivacaine Hydrochloride

Ropivacaine Hydrochloride (CAS 132112-35-7) is the hydrochloride monohydrate salt of (S)-ropivacaine, a long-acting amide-type local anesthetic. The molecule features a piperidine ring with an N-propyl substituent and a 2,6-dimethylphenylcarboxamide group.
Atracurium Besylate

Atracurium Besylate

Atracurium Besylate (CAS 64228-81-5) is a non-depolarizing neuromuscular blocking agent of the benzylisoquinolinium class. The molecule consists of two quaternary isoquinolinium moieties linked by a pentamethylene diester chain. This structural arrangement enables Atracurium Besylate to competitively antagonize acetylcholine at the nicotinic receptor of the motor endplate, producing skeletal muscle relaxation.
Cisatracurium Besylate

Cisatracurium Besylate

Cisatracurium Besylate (CAS 96946-42-8) is a non-depolarizing neuromuscular blocking agent and the single (1R,1'R) stereoisomer of atracurium. The molecule consists of two quaternary isoquinolinium moieties linked by a pentamethylene diester chain, with defined (1R,1'R) stereochemistry.
Apalutamide

Apalutamide

Apalutamide (CAS 956104-40-8) is an orally administered, non-steroidal androgen receptor (AR) inhibitor. The molecule features a thiohydantoin core with a 4-cyano-3-(trifluoromethyl)phenyl group and a cyclobutyl substituent.
Cosper is a professional Active Pharmaceutical Ingredient manufacturer and supplier in China. We have an experienced sales team, professional technicians, and an after-sales service team.
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