Procyanidin A1 – CAS 103883-03-0


Procyanidins are proanthocyanidins formed from (+) catechin and (-) epicatechin. Procyanidins can be categorized into A-type and B-type, depending on the nature of the interflavan bonds. B-type procyanidins have a single interflavan bond. A-type procyanidins differentiate themselves from B-type procyanidins by containing a second interflavan bond between at least one set of subunits. The most common A-type procyanidins are A1 and A2. Procyanidin A1 (CAS 103883-03-0) is an epicatechin-(2β→O→7,4β→8)-catechin dimer. It is commonly isolated from peanut skins and cranberries.

Recent research indicates that Procyanidin A1 (CAS 103883-03-0) promotes the production of platelets to alleviate chemotherapy-induced thrombocytopenia.

You can find additional procyanidin reference standards here.

Compound Details



Molecular Weight


Chemical Formula





(+)-Proanthocyanidin A2





Storage Temperature

Below -18 degrees C

Storage Conditions

Dry, freezer

Product Documents

Certificates of Analysis

Safety Data Sheet

Product Use Disclaimer

Products are sold as laboratory reference materials, to be used for diagnostic and in vivo testing. The samples are not certified for veterinary or human use. 

$14.00 - $32.00 / milligram

Range (milligram)Price ($/milligram)
5 - 24 milligram$32.00 / milligram
25 - 99 milligram$27.50 / milligram
100 - 249 milligram$23.00 / milligram
250 - 499 milligram$18.50 / milligram
500 - 1000 milligram$14.00 / milligram
Product Price

Technical Support

Product information is from published literature. Due to the nature of scientific experimentation, results or specific product application may vary (e.g., selectivity, detector response). If you have questions about the product, its application, and associated analytics, please contact our technical support team.

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