IPTG, dioxan free 7757-83-7 Qualitative filter papers are recommended

Qualitative filter papers are recommended for use in analytical methods which determine or identify particular constitutes of a mixture regardless of the amount present

It is a component of Ultramark 1621

Trifluoromethanesulfonic anhydride (CAS number 358-23-6)

HEPES free acid Ultrapure

They are cellulose based providing high purity but will weaken when wet

IPTG, dioxan free 7757-83-7 Qualitative filter papers are recommendedIPTG is an analog of galactose that is non metabolizable and inactivates the lac repressor to induce synthesis of galactosidase in E. coli. The expression of cloned genes under the control of the lac operon is induced by IPTG. It is also a substrate for thigalactoside transacetylase and has been reported to induce penicillinase in bacteria. IPTG is commonly used in cloning procedures that require induction of galactosidase and is most often used with