2006-07-12 19:19:45 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Ummmmmm..... ask a pharmacist.
2006-07-12 19:21:27 · answer #1 · answered by redchili68 4 · 0⤊ 0⤋
Guanine, along with adenine and cytosine, is present in both DNA and RNA, whereas thymine is usually seen only in DNA and uracil only in RNA. Guanine has two tautomeric forms, the keto form and enol form. It binds to cytosine through three hydrogen bonds. In cytosine, the amino group acts as the hydrogen donor and the C-2 carbonyl and the N-3 amine as the hydrogen-bond acceptors. Guanine has a group at C-6 that acts as the hydrogen acceptor, while the group at N-1 and the amino group at C-2 acts as the hydrogen donors. over
2006-07-12 19:24:08 · answer #2 · answered by Rocko 3 · 0⤊ 0⤋
http://en.wikipedia.org/wiki/Guaifenesin
2006-07-12 22:41:47 · answer #3 · answered by Anonymous · 0⤊ 0⤋
am no doctor so probaby why no t have a look at this document http://www.dxcicdd.com/04/PDF/jakdxc04_guaifenesin_abs.pdf
2006-07-12 19:24:29 · answer #4 · answered by a_yogini 2 · 0⤊ 0⤋