From: utzoo!decvax!harpo!eagle!mhuxt!rwhaas Newsgroups: net.cooks Title: Re: Sucrose Isomer, anyone?? Article-I.D.: mhuxt.496 Posted: Tue Jun 8 07:57:05 1982 Received: Wed Jun 9 00:54:41 1982 References: eiss.335 Although I haven't heard of any efforts to produce a sucrose isomer which is not metabolized but passes through the body, the possibility appears very real. I would conjecture that the glucose part would be L- rather than D-glucose. It is not uncommon for one optically active isomer to have certain physiological properties, while its mirror image may be very similar in simple chemical reactions but may react differently or not at all, in more complex environments, such as the chemistry inside the body. If memory serves correctly, the D- form of benzedrine is an "upper", while the L- form is mostly inactive. I've been out of chemistry for ten years. Can anyone confirm or deny any of this? Roy Haas ( mhuxt!rwhaas)