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Procyanidin B4 is a B type proanthocyanidin.
Procyanidin-B4 is a catechin-(4α→8)-epicatechin dimer. It is found in the litchi pericarp, in grape seeds, and, along with 4-cis-isomer of procyanidin B4, in beer.

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Density:1.705g/cm3
Boiling Point:955.3ºC at 760 mmHg
Flash Point:531.6ºC
Refractive Index:1.803
Vapor Pressure:0mmHg at 25°C

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Synthesis Route Total: 19 Synthesis Route
 
923565-05-3
~99%
29106-51-2
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195145-79-0
~66%
29106-51-2
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Precursor and Product