CDP-Star® Universal Alkaline Phosphatase Detection Kit

Disodium 2-chloro-5-(4-methoxyspiro[1,2-dioxetane-3,2′-(5-chlorotricyclo[]decan])-4-yl]-1-phenyl phosphate
Pricing and availability is not currently available.


 kit sufficient for 20 blots (10 × 10 cm after stringency washes in hybridization protocols.)

storage temp.



The CDP-Star Universal Detection kit provides the necessary components for the chemiluminescent detection of biotin- or fluorescein-labeled probes in Northern, Southern, sequencing, and colony/plaque lift blotting applications. The optimized procedure and reagents provided in the universal detection kit offer picogram sensitivity and due to the extended light emission exhibited by dephosphorylation of CDP-Star, multiple film exposures are possible. Following exposure to alkaline phosphatase-labeled molecules, light emission continues for up to 24 hours, thus, allowing for optimal signal-to-noise adjustment and detection of low-abundance targets.

Features and Benefits

  • Non-Radioactive
  • Sensitive - picogram sensitivity is routinely observed when the optimized procedure is followed.
  • Fast - film exposures may be as short as a few seconds to several minutes.


Protect from light.

Legal Information

CDP-Star is a registered trademark of Tropix, Inc.

Kit Components Also Available Separately

Product No.

  • A5719Anti-Fluorescein Alkaline Phosphatase 1.0

  • 10X AP Wash Buffer 575 mL

  • B642910X Blocking Buffer 450 mL

  • C0712CDP-Star Chemiluminescent Substrate Solution 100 mL

  • Streptavidin-Alkaline Phosphatase 1.0

  • 10X Wash Buffer 1.15 L

Certificate of Analysis
Certificate of Origin
I Bronstein et al.
Methods in enzymology, 217, 398-414 (1993-01-01)
The chemiluminescent detection methods described in this chapter have been successfully applied to the detection of plasmid DNA and genomic DNA in Southern and sequencing protocols. The high sensitivity and the simplicity of AMPPD are instrumental in making the chemiluminescent...
G P Accotto et al.
Journal of bioluminescence and chemiluminescence, 13(5), 295-301 (1998-12-05)
Due to costs in using and disposing of radiochemicals and to health considerations, we have been developing applications which include non-isotopic detection of DNA and proteins using chemiluminescence. Our major interests are in the detection of viral nucleic acids and...
D C Price
Science & justice : journal of the Forensic Science Society, 36(4), 275-282 (1996-10-01)
Five new enzyme-triggered dioxetane substrates were evaluated for restriction fragment length polymorphism (RFLP) analysis of HaeIII- restricted DNA. Of these, one substrate designated CDP-Star provided unsurpassed sensitivity within one working day without the presence of an enhancer. Far greater sensitivity...
Ultra-rapid detection of mRNAs on northern blots with digoxigenin-labelled oligonucleotides and 'CDP-Star', a new chemiluminescence substrate.
P Trayhurn et al.
Biochemical Society transactions, 23(3), 494S-494S (1995-08-01)

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