1.Natural Astaxanthin 1%-4% 2.Free sample for test 3.Lead time: within 2 days 4.Transport: by DHL or ... ):435.8°CSpecification Available:1%-4% HPLCSynonymsNatural astaxanthin ; (3S,3'S)-3,3'-dihydroxy-beta,beta-carotene-4,4'-dione; (9cis,9'cis ... ,13cis,13'cis,15cis)-3,3'-dihydroxy-beta,beta-carotene-4,4'-dioneSource:Haematococcus pluvialis is ...