A quaternary ammonium-containing cationic surfactant
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Dodecyltrimethylammonium (bromide)

Item No. 37009

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
N,N,N-trimethyl-1-dodecanaminium, monobromide
CAS Number
1119-94-4
Synonyms
  • DTAB
  • C12TAB
Molecular Formula
C15H34N • Br
Formula Weight
308.3
Purity
≥98%
Formulation (Request formulation change)
A crystalline solid
Solubility(Learn about Variance in Solubility)
DMSO: Soluble
SMILES
C[N+](C)(CCCCCCCCCCCC)C.[Br-]
InChi Code
InChI=1S/C15H34N.BrH/c1-5-6-7-8-9-10-11-12-13-14-15-16(2,3)4;/h5-15H2,1-4H3;1H/q+1;/p-1
InChi Key
XJWSAJYUBXQQDR-UHFFFAOYSA-M
Shipping & Storage Information
Storage
-20°C
Shipping
Wet ice in continental US; may vary elsewhere
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    Cayman Chemical
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    Product Description

    Dodecyltrimethylammonium is a quaternary ammonium-containing cationic surfactant.1 It has a critical micelle concentration (CMC) of 15.7 and 8.1 mM in water and PBS, pH 7.4, respectively, and binds to DNA. Dodecyltrimethylammonium is active against L. monocytogenes (MIC = 120 mg/L).2

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Silva, E.F., Andrade, U.M.S., de Oliveira, K.M., et al. Dodecyltrimethylammonium bromide surfactant effects on DNA: Unraveling the competition between electrostatic and hydrophobic interactions. Phys. Rev. E 102(3-1), 032401 (2020).

    2. Müller, A., Rychli, K., Zaiser, A., et al. The Listeria monocytogenes transposon Tn6188 provides increased tolerance to various quaternary ammonium compounds and ethidium bromide. FEMS Microbiol. Lett. 361(2), 166-173 (2014).