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D-Luciferin, Potassium Salt

A substrate for luciferase
Catalog #: 7903
SKU-Size Size Price Qty
7903-100 100 mg
7903-1G 1 g
7903-3PK 3 x 1 g
7903-5PK 5 x 1 g
7903-10G 10 g
7903-10PK 10 x 1 g
More Sizes Get Quote

Product Details

Alternate Name (S)-2-(6-Hydroxy-2-benzothiazolyl)-2-thiazoline-4-carboxylic acid potassium salt, 4,5-Dihydro-2-(6-hydroxy-2-benzothiazolyl)-4-thiazolecarboxylic acid potassium salt, Firefly luciferin potassium salt
Appearance Light yellow solid
CAS # 115144-35-9
Molecular Formula C₁₁H₇KN₂O₃S₂
Molecular Weight 318.41
Purity ≥99.8% by Chiral HPLC
Solubility H₂O (~40 mg/ml)
SMILES C1C(NC(=C2N=C3C=CC(=O)C=C3S2)S1)C(=O)[O-].[K+]
InChi (57-67-163(278)279)182(297)250-149(92-257)198(313)232-125(52-62-155(210)
PubChem CID 71299756
MDL Number MFCD00044928
Handling Protect from air and light
Storage Conditions -20°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.


D-Luciferin potassium salt is a useful substrate for the enzyme Firefly Luciferase. Upon oxidation by the enzyme luciferase, produces bioluminescence. D-Luciferin can be utilized to assay the expression of the luciferase gene linked to a promoter of interest. Alternatively, D-Luciferin and luciferase can be used to assess ATP availability in cellular or biochemical assays.

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