268298
DAPI, Dihydrochloride
Cell-permeable DNA-binding dye.
Synonym(s):
DAPI, Dihydrochloride, 4ʹ,6-Diamidino-2-phenylindole, 2HCl
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About This Item
Empirical Formula (Hill Notation):
C16H15N5 · 2HCl
CAS Number:
Molecular Weight:
350.25
MDL number:
UNSPSC Code:
12352200
Recommended Products
Quality Level
Assay
≥90% (HPLC)
form
solid
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
desiccated (hygroscopic)
protect from light
color
yellow
solubility
water: 5 mg/mL
ethanol: soluble
methanol: soluble
fluorescence
λex ~359 nm
λem ~461 nm
shipped in
ambient
storage temp.
−20°C
InChI
1S/C16H15N5.2ClH/c17-15(18)10-3-1-9(2-4-10)13-7-11-5-6-12(16(19)20)8-14(11)21-13;;/h1-8,21H,(H3,17,18)(H3,19,20);2*1H
InChI key
FPNZBYLXNYPRLR-UHFFFAOYSA-N
General description
Cell-permeable DNA-binding dye. Binds preferentially to DNA rich in adenine and thymine. Used in flow cytometry for measuring nuclear DNA content or for sorting isolated chromosomes. Useful for microscopic detection of nuclei and nuclear DNA in normal and apoptotic cells. Can also be used to detect mycoplasma. A reversible inhibitor of S-adenosyl-L-methionine decarboxylase and diamine oxidase. Also available as a 5 mg/ml mM solution in H2O (Cat. No. 508741).
Fluorescent dye specific for DNA. Binds preferentially to DNA rich in adenine and thymidine (excitation max. = 359 nm, emission max. = 461 nm). Useful for microscopic analysis of nuclei and nuclear DNA in apoptotic cells. Can also be used to detect mycoplasma. Reversible inhibitor of S-adenosyl-L-methionine decarboxylase and diamine oxidase. Cells are typically stained at 1 µg/ml.
Biochem/physiol Actions
Cell permeable: no
Primary Target
Binds preferentially to DNA rich in adenine and thymine
Binds preferentially to DNA rich in adenine and thymine
Product does not compete with ATP.
Reversible: yes
Warning
Toxicity: Standard Handling (A)
Reconstitution
Following reconstitution, aliquot and freeze (-20°C) for long term storage or refrigerate (4°C) for short term storage. Stock solutions are stable for up to 6 weeks at 4°C or for up to 6 months at -20°C.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Skin Irrit. 2 - Skin Sens. 1A - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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