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CS-W001157 4
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DOTA-​NHS-ester

  • CAS No. 170908-81-3

  • Cat. No. CS-0101897
  • Molecule weight501.49
  • Purity≥90%
  • MDL No.MFCD23381190

*For research and further manufacturing use only, not for direct human use.

DOTA-​NHS-ester|CS-0101897

Structure of 170908-81-3

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General Information

  • CAS No. 170908-81-3
  • Cat. No. CS-0101897
  • Purity ≥90%
  • MDL No. MFCD23381190
  • Storage -20°C, sealed storage, away from moisture
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₂₀H₃₁N₅O₁₀
  • Molecular Weight 501.49
  • Synonym(s) None
  • SMILES O=C(ON1C(CCC1=O)=O)CN2CCN(CC(O)=O)CCN(CC(O)=O)CCN(CC(O)=O)CC2

Description

DOTA-NHS-ester features a reactive NHS ester group enabling efficient conjugation to primary amines under physiological conditions. This bifunctional chelator integrates seamlessly into bioconjugation workflows, delivering stable metal coordination for imaging and therapeutic applications.

Application

DOTA-NHS-ester serves as a robust bifunctional linker for conjugating chelating agents to biomolecules. It enables efficient amine-directed coupling under physiological conditions, facilitating the site-specific attachment of radiometals or fluorescent labels to proteins, antibodies, and peptides. The stable DOTA core ensures high metal affinity, while the NHS ester provides excellent reactivity with primary amines, offering predictable conjugation yields and simplified purification via dialysis or size exclusion.

Synthesis

  • Route1

    References

    • Li, Cong; Winnard Jr., Paul T.; Takagi, Tomoyo; Artemov, Dmitri; Bhujwalla, Zaver M. Journal of the American Chemical Society, 2006 ,  vol. 128,  # 47  p. 15072 - 15073

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS07
Signal Word : Warning
UN#: N/A
Class : N/A
Packing Group : N/A
Hazard Statements : H315-H319
Precautionary Statements : P264-P280-P302+P352-P362

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Computational Chemistry Data

  • TPSA   188.54
  • LogP   -2.931
  • H_Acceptors   11
  • H_Donors   3
  • Rotatable_Bonds   9

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