Radiopharma

Radiopharmaceutical Chelators & Precursors

DOTA, NOTA, DFO, DTPA, bifunctional chelators, and cold precursor building blocks for imaging and radioligand programs.

Product category

Category scope

DOTA, NOTA, DFO, DTPA, bifunctional chelators, and cold precursor building blocks for imaging and radioligand programs.

Information for product selection

Selection starts with an exact structure or catalog identity and the requirements of the intended project. Include the following information so product fit and available documentation can be reviewed against the same request.

  • Exact product name, structure, CAS number, or CHEMOS catalog number
  • Required quantity and material form
  • Target specification and analytical expectations
  • Intended chemistry or application context
  • Required documents and requested delivery timing

Catalog boundary

A category listing identifies a material family and a route to technical review. It does not by itself confirm stock, grade, batch specification, document availability, application performance, or regulatory suitability; these points are confirmed for the requested item and batch.

Product List

Catalog No.NameCAS No.StructureM.W.Buy
CH54001DOTA-tri(t-butyl ester)137076-54-1
DOTA-tri(t-butyl ester) structure, CAS 137076-54-1, MW 572.73
572.73
CH54002DOTAGA-Anhydride1375475-53-8
DOTAGA-Anhydride structure, CAS 1375475-53-8, MW 458.5
458.5
CH54003DOTA-GA-Maleimide1800229-46-2
DOTA-GA-Maleimide structure, CAS 1800229-46-2, MW 598.6
598.6
CH54004NH2-PEG4-DOTA2090232-34-9
NH2-PEG4-DOTA structure, CAS 2090232-34-9, MW 622.71
622.71
CH540052-Aminoethyl-mono-amide-DOTA-tris(tBu ester)173308-19-5
2-Aminoethyl-mono-amide-DOTA-tris(tBu ester) structure, CAS 173308-19-5, MW 614.82
614.82
CH54006DOTA-GA(tBu)4306776-79-4
DOTA-GA(tBu)4 structure, CAS 306776-79-4, MW 700.9
700.9
CH54007Azido-mono-amide-DOTA1227407-76-2
Azido-mono-amide-DOTA structure, CAS 1227407-76-2, MW 486.53
486.53
CH54008NH2 DOTA-GA1639843-65-4
NH2 DOTA-GA structure, CAS 1639843-65-4, MW 518.57
518.57
CH54009Butyne-DOTA2125661-62-1
Butyne-DOTA structure, CAS 2125661-62-1, MW 455.51
455.51
CH54010DOTAM-Mono-Acid913528-04-8
DOTAM-Mono-Acid structure, CAS 913528-04-8, MW 401.46
401.46
Technical Questions

Frequently Asked Questions

Common questions about product selection, specifications, analytical information, and inquiries for Radiopharmaceutical Chelators & Precursors.

What does Radiopharmaceutical Chelators & Precursors cover?
DOTA, NOTA, DFO, DTPA, bifunctional chelators, and cold precursor building blocks for imaging and radioligand programs.
What information should accompany an inquiry?
Provide the exact identity or structure, quantity, material form, target specification, application context, required documents, and requested timing.
Does a category listing confirm grade or availability?
No. Grade, batch specification, availability, documentation, and delivery timing are confirmed for the requested item and batch.
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