Substrates for the assay of ß galactosidase
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MNP Gal
2 methoxy 4 (2 nitrovinyl) phenyl ß D galactopyranoside MW 339
The lambda-max and extinction-max at pH>9.5 for the released phenol are 505 nm and 27,000 Lmol-1cm-1 respectively
Code number 1053.
VQM Gal
2 {2 [4 (ß D galactopyranosyloxy)3 methoxyphenyl]vinyl} 1 methyl quinolinium iodide MW 581.
The lambda-max and extinction-max at pH>9.5 for the released phenol are 515 nm and 42,500 Lmol-1cm-1) respectively.
An excellent substrates for several galactosidases, particularly that from E. coli.
Code number 1054.
VBzTM Gal
2 {2 [4 (ß D galactopyranosyloxy)3 methoxyphenyl]vinyl} 3 methyl benzothiazolium iodide MW 587
The lambda-max and extinction-max at pH>9.5 for the released phenol are 519 nm and 55,000 Lmol-1cm-1respectively.
An excellent substrate for several galactosidases, particularly that from E. coli.
Code number 1056.
