IPTG (Isopropyl 1-thio-β-D galactopyranoside) induces the transcription of the gene coding for β-galactosidase, an enzyme that promotes lactose utilization, by binding and inhibiting the LacI repressor. IPTG is widely used as it cannot be metabolized by E. coli so its concentration remains constant through the in vivo study. We offer ultrapure, analytical-grade IPTG (>99.5% purity).
Ordering Information: Product Units Order Code:
Ultrapure IPTG (> 99.5%) 5 g GEN-S-02122-5G
Ultrapure IPTG (> 99.5%) 25 g GEN-S-02122
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Specification:
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Formula:
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C9H1805S
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Molecular Weight:
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238.30 g/mol
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CAS:
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[367-93-1]
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Purity:
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> 99.5% (HPLC, A220)
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Appearance:
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White crystalline powder
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Specific rotation (20°C, c=1, H2O):
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-31 to -33°
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IR:
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Standard
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Water content:
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0.5% max. (KF)
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Dioxane-free:
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Dioxane is not used for preparing IPTG
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Solubility in water:
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>10% at 20°C
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pH 1% solution:
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5.5-6.5
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Solution (3% in H2O, 21°C):
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Clear, colourless
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Solution (20% in EtOH, 21°C):
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Clear, colourless
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Storage:
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Store frozen and keep dry. Warm to room temperature before opening bottle. Protect from light.
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