申请人:LIFE TECHNOLOGIES CORPORATION
公开号:US20130252842A1
公开(公告)日:2013-09-26
Cyanine dye compounds having a substituted methine moiety that are nucleic acid stains, particularly for fluorescent staining of RNA, including compounds having the formula
where R
1
is a C
1
-C
6
alkyl, sulfoalkyl, carboxyalkyl or C
1
-C
6
alkoxy; each R
2
is independently selected from the group consisting of H, C
1
-C
6
alkyl, C
1
-C
6
alkoxy, fused benzo, trifluoromethyl, amino, sulfo, carboxy and halogen, that is optionally further substituted; at least one of R
3
, R
4
, and R
5
is an alkyl, aryl, heteroaryl, cyclic, or heterocyclic moiety that is optionally substituted by alkyl, amino, aminoalkyl, carboxy, nitro, or halogen; and the remaining R
3
, R
4
or R
5
are hydrogen; X is S, O, or Se; and D is a substituted or unsubstituted pyridinium, quinolinium or benzazolium moiety.