D-(-)-Luciferin potassium salt

Supplier: Promega Corporation

Synonyms: D-Luciferin potassiumBeetle Luciferin potassium saltLuciferin potassium saltFirefly luciferin potassium salt(S)-2-(6-Hydroxy-2-benzothiazolyl)-2-thiazoline-4-carboxylic acid potassium saltPotassium (S)-2-(6-hydroxybenzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylate

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D-(-)-Luciferin potassium salt
D(-)-Luciferin potassium salt

Beetle luciferin (also known as D-luciferin) is synthesized as the monopotassium salt and is a substrate for the beetle luciferase reporter systems.


  • Use in solution assays in which the production of light can be monitored with either a luminometer or a scintillation counter
  • Can penetrate cell membranes, allowing transformed cells to be monitored for luciferase activity


Luciferase genes from the North American firefly (Photinus pyralis) and from other beetles are commonly used as reporter genes for studying transcription regulation in transient assay systems and as markers for stably transformed eukaryotic cells. Beetle luciferin (also known as D-luciferin) is synthesized as the monopotassium salt and is a substrate for the beetle luciferase reporter systems. D-luciferin is provided for those researchers who prefer to formulate their own assay reagents for monitoring in vitro or in vivo luciferase activity.

Formula: C₁₁H₇KN₂O₃S₂
MW: 318.41 g/mol
MDL Number: MFCD00044928
CAS Number: 115144-35-9

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