Zhishang Chemical

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Procyanidin CAS 4852-22-6

Molecular Formula:C30H26O13

Formula Weight:594.52

Purity: 99%

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Product Name: Procyanidin
CAS No:4852-22-6

Basic Info

Product Name:Procyanidin
Other Names:Amrinon
Place of Origin:Shandong, China
Brand Name:Zhishang Chemical
EINECS No.:1806241-263-5
Storage:Cool Dry Place
Provide:Procyanidin MSDS;
Procyanidin COA

2-(3,4-Dihydroxyphenyl)-2-((2-(3,4-dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-yl)oxy)-3,4-dihydro-2H-1-benzopyran- 3,4,5,7-tetrol;2-(3,4-Dihydroxyphenyl)-2-((2-(3,4-dihydroxyphenyl)-5,7-dihydroxychroMan-3-yl)oxy)chroMan-3,4,5,7-tetraol;Procyanidin

Product Categories:

chemical reagent;pharmaceutical intermediate;phytochemical


Procyanidins are a large class of polyphenols widely existing in plants, which are similar to anthocyanins in structure. They are polycondensated from flavane-3-ol monomers. It has strong antioxidant activity and has been widely used in food, medicine, cosmetics and other fields.

Chemical Properties:

Crystalline Solid

  1. Oligomeric proanthocyanidins are easily soluble in polar solvents such as water, alcohol, ketone, glacial acetic acid and ethyl acetate, but insoluble in weak polar solvents such as petroleum ether, chloroform and benzene.
  2. Highly polymerized proanthocyanidins are insoluble in hot water, but soluble in alcohol or sulfite saline solution, which is equivalent to water-insoluble tannin, which is traditionally called “red powder”. Polymerized procyanidins with higher degree of polymerization are insoluble in neutral solvents, but soluble in alkaline solutions. They are customarily called “phenolic acids”.



Proanthocyanidin (grape seed extract) is a new type of high effective antioxidant. It is the most powerful free radical scavenger found so far. It has very strong in vivo activity. It is used to improve blood circulation, treat diabetic retinopathy, reduce edema and inhibit varicose veins, prevent complications after cataract surgery, remove edema and moisturize skin.

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

Get Procyanidin Quotation