Random Hexamers are a combination of oligonucleotides representing all probable sequences for a hexamer. Random Hexamers are used in cDNA synthesis by RT-PCR. During cDNA generation, random priming gives random coverage to all regions of the RNA to make a cDNA pool containing various lengths of cDNA. Random priming is unable to distinguishing between mRNA and other RNA species existing in the reaction.
Before opening, spin the tube for a short time to ensure that the oligos are at the bottom of the tube. We recommend dissolving the stock oligo in concentrated form in TE (10mM Tris pH 8.0,1 mM EDTA). Alternatively ,Sterile dH2O can be used.
You can also refer to cDNA synthesis kit .