Inalco code 1758-1400C.A.S. R.N. [367-93-1]Applications β-alactosidase inducer used also as an inducer for the activity of the E. coli lac operon by linking and inactivating the lac repressor gene, without being degraded by the enzyme like the natural substrate,actose.Formula C9H18O5SMolecular Weight 238.3Appearance White powderAssay (HPLC) ≥ 99.0%Specifc Rotation [α]20D -32º ± 1 (c=1 in H2O)Water Content (K.F.) ≤ 1%pH 5 - 7 (5% in H2O)Solubility Clear and colorless solution (5% in H2O)I.R. Conforming to the structureStorage Store at 0-4º C; protect from light aToxicity Toxicity unknown; avoid exposure.