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Isopropyl-B-D-Thio-Galactopyranoside (IPTG), 1g
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IPTG [Isopropyl-ß-D-thio-galactopyranoside]
IPTG is combined with X-GAL to detect lac+ colonies or cells in a colorimetric assay. Distinguishes recombinants (white) from non- recombinants (blue) in cloning strategies using vectors such as Lambda-11, M13mp 18 and 19, pUC18 and 19, pUR222 containing the lacZ gene. Soluble in ethanol and water. Store at 0-5°C.
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