D-Luciferin Firefly, FREE ACID, 500mg

D-Luciferin Firefly, free acid 4,5-Dihydro-2-(6-hydroxy-2-benzothiazolyl)-4-thiazolecarboxylic acid Luciferin is a common bioluminescent reporter used for in-vivo imaging of the expression of the luc marker gene . It is the substrate for the Firefly luciferase enzyme which utilizes ATP and Mg2+ as co-factors and emits a characteristic yellow-green emission in the presence of oxygen MOLECULAR BIOLOGY GRADE Color: Off white to light yellow powder Note: The Free Acid form of Luciferin will not dissolve in water unless a dilute base such as NaOH or KOH is added to adjust the pH. The Potassium or Sodium Salts of Luciferin are more convenient for experiments, particularly for in vivo imaging, since they readily dissolve in water or buffer. Store at -20 °C and protect from light. PubChem Chemical ID: 5484207 Features Synonyms: ST50405784, Luciferin, CHEBI:17165, 4,5-Dihydro-2-(6-hydroxy-2-benzothiazolyl)-4-thiazolecarboxylic acid, 2591-17-5, AC1NUNCB, L6152_SIGMA CAS#: 2591-17-5 Molecular Formula: C₁₁H₈N₂O₃S₂ Molecular Weight: 280.330 g/mol