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High-purity chemical intermediates and specialty compounds from a trusted Chinese manufacturer since 2006. ISO-certified, globally exported.

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Who We Are

Changzhou Winsun Bio-Pharma Technology Co., Ltd. is a leading manufacturer, supplier, and exporter of pharmaceutical raw materials and drug intermediates based in China. Established in 2006, we have dedicated over 18 years to the research, development, and production of fine chemicals and specialty compounds.

Our team of passionate professionals is committed to innovation, quality control, and customer satisfaction. We specialize in synthetic intermediates, pharmaceutical intermediates, agrochemical intermediates, and chemical reaction catalysts, serving clients across the globe with consistent, high-purity products.

2006

Founded

18+

Years Experience

Winsun Corporation Facility

Our Key Products

High-quality synthetic and pharmaceutical intermediates, agrochemical compounds, and specialty esters with strict quality control and global compliance.

Diethyl Methylmalonate

CAS No: 609-08-5 | EINECS: 210-175-7

High-purity (99% min) liquid ester used in pharmaceutical synthesis and chemical intermediates. Colorless to pale yellow liquid.

  • Formula: C8H14O4
  • Application: Pharma, Agrochemicals
  • Purity: ≥99%

Methyl 2-Chloropropionate

CAS No: 17639-93-9 | Formula: C4H7ClO2

Key intermediate in organic synthesis and pharmaceutical manufacturing. Used in chiral compound production.

  • Grade: Reagent & Industrial
  • Form: Clear Liquid
  • Packaging: 25kg Drum

Diethyl Fluoromalonate

CAS No: 685-88-1 | Formula: C7H11FO4

Fluorinated malonate ester used in advanced pharmaceutical synthesis. High reactivity and stability.

  • Purity: ≥97%
  • Application: API Intermediates
  • Storage: Cool & Dry Place

(S)-(-)-Methyl 2-Chloropropionate

CAS No: 73246-45-4

Chiral intermediate used in enantioselective synthesis of pharmaceuticals and fine chemicals.

  • Enantiomeric Purity: >98% ee
  • Form: Colorless Liquid
  • Use: Asymmetric Synthesis

Ethyl 2-Chloropropionate

CAS No: 535-13-7 | Formula: C5H9ClO2

Widely used in pharmaceutical and agrochemical intermediate synthesis. Stable and high-reactivity ester.

  • Purity: ≥99%
  • Boiling Point: 158-160°C
  • Packaging: 200kg Drum

Ethyl (S)-2-Chloro Propionate

CAS No: 74497-15-7

Enantiomerically pure compound for chiral drug development and asymmetric synthesis.

  • Chirality: (S)-Configuration
  • Purity: >98% ee
  • Application: Active Pharmaceutical Ingredients

Lanolin Anhydrous

CAS No: 8006-54-0 | Quality: BP98

High-grade lanolin used in cosmetics, skincare, and pharmaceutical formulations.

  • Appearance: Yellowish to Pale Yellow Wax
  • Uses: Emollient, Moisturizer
  • Standard: British Pharmacopoeia

Plant Extract Powder

e.g., Poria Cocos, Nattokinase, Resveratrol

Natural ingredient extracts for health care, food, and cosmetic applications.

  • Examples: Nattokinase (133876-92-3)
  • Form: Fine Powder
  • Applications: Nutraceuticals, Supplements
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Why Choose Winsun Corp?

Trusted by global partners for quality, consistency, and innovation.

ISO Certified

Our processes meet international quality standards for consistent product excellence.

Global Export

Products shipped worldwide with full documentation and regulatory compliance.

Fast Response

Dedicated team ensures quick communication and efficient order processing.

Customer Focus

Tailored solutions and technical support for your specific chemical needs.

18+
Years in Business
50+
Global Markets
99%
Customer Retention

Get in Touch

For product inquiries, quotes, or technical support, visit our official website to connect with our team.

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