BA vs BB for conversion purposes?

[SJR7674]

What is the difference between Benzyl Alcohol and Benzyl Benzoate? I need to convert 5 mg dry IGF powder, and I am supposed to use BA. I keep running across the BB though. Anyone know the difference and which is used for conversion purposes

 

[wolverine]

BA is used as a solvent AND it helps to sterilize. BB is used as a solvent only (in conjunction with BA for best results) as it isn't painful in higher concentrations like BA. You can go as high as 20% with BB, but it doesn't aid in sterilization.