Source for small quantities of chemicals

I don't normally post in this topic area much not being a conservator, but as a collections supervisor who has had to deal with hazardous waste disposal I can appreciate the advantage of being able to buy and keep solvents and reagents in shop and lab areas in small quantities.
Just thought I would put in this link posted on another listserve here for reference

http://www.pfaltzandbauer.com/

and

http://web1.chemservice.com/csiwebsi...earch?openpage

and

http://www.museumservicescorporation.com/