Product No.: IBRE-95
CAS No.: 200408-05-5

Product Name:  IBRE
Synonyms:  4H-Imidazo[1,5-a][1,4]benzodiazepine-3-carboxylicacid, 5,6-dihydro-5-methyl-6-oxo-8-(tributylstannyl)-, ethyl ester
CAS No.:  200408-05-5
Molecular Formula:  C27H41IN3O3Sn
Molecular Weight:  574.34
Application:  Precursor for [*I]IMZ
Presentation:  Packaged in amber vials or amber screw-cap vials with teflon-coated stoppers under argon atmosphere
Product Testing
Parameter Method Specification
Sterility USP Sterile
Bacterial Endotoxins LAL <10.0 I.U./25 mg
Appearance Organoleptic Yellowish to colorless oil
Purity HPLC ≥95.0%
ESI (m/z) LC-MS [M+H]+, 576.22
Identity 1H-NMR Conforms

Storage and Stability

  • Store the product at -20 ℃, protected from light.
  • Short-term storage at higher temperatures does not affect product quality.


  • Complete documentation - Certificate of Analysis including testing reports of 1H-NMR and HPLC spectra for each shipment
  • Customized dispensing available

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