Date published: 2026-2-17

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Benzoyl chloride-d5 (CAS 43019-90-5)

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Alternate Names:
Benzoyl-d5 Chloride; Pentadeuterobenzoyl chloride
CAS Number:
43019-90-5
Molecular Weight:
145.60
Molecular Formula:
C7D5ClO
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Benzoyl chloride-d5 is a deuterated compound used in the field of organic chemistry for various research applications. Its primary use is in the study of reaction mechanisms where the deuterium labeling allows for tracing the fate of specific atoms during chemical transformations. This is particularly useful in reactions where benzoyl groups are introduced, such as acylation reactions. Benzoyl chloride-d5 is also employed as an internal standard in nuclear magnetic resonance (NMR) spectroscopy, where the deuterium atoms provide a non-interfering reference signal. The compound is instrumental in the synthesis of labeled aromatic compounds, where its use can help elucidate the position and orientation of substituents on aromatic rings. Additionally, researchers utilize benzoyl chloride-d5 to investigate kinetic isotope effects, which can shed light on the rates of chemical reactions and the influence of atomic mass on reaction dynamics.


Benzoyl chloride-d5 (CAS 43019-90-5) References

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  2. Disturbed tryptophan metabolism correlating to progression and metastasis of esophageal squamous cell carcinoma.  |  Cheng, J., et al. 2017. Biochem Biophys Res Commun. 486: 781-787. PMID: 28342863
  3. Relative quantitation of neutral and sialylated N-glycans using stable isotopic labeled d0/d5-benzoyl chloride by MALDI-MS.  |  Wang, C., et al. 2018. Anal Chim Acta. 1002: 50-61. PMID: 29306413
  4. Analysis of Catecholamines and Pterins in Inborn Errors of Monoamine Neurotransmitter Metabolism-From Past to Future.  |  Jung-Klawitter, S. and Kuseyri Hübschmann, O. 2019. Cells. 8: PMID: 31405045
  5. Distinct Roles of Honeybee Gut Bacteria on Host Metabolism and Neurological Processes.  |  Zhang, Z., et al. 2022. Microbiol Spectr. 10: e0243821. PMID: 35266810
  6. Honeybee gut Lactobacillus modulates host learning and memory behaviors via regulating tryptophan metabolism.  |  Zhang, Z., et al. 2022. Nat Commun. 13: 2037. PMID: 35440638
  7. The Development of an Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry Method for Biogenic Amines in Fish Samples.  |  Li, T., et al. 2022. Molecules. 28: PMID: 36615379
  8. Associations of Biopterins and ADMA with Vascular Function in Peripheral Microcirculation from Patients with Chronic Kidney Disease.  |  Arefin, S., et al. 2023. Int J Mol Sci. 24: PMID: 36982658
  9. Simultaneous analysis of twelve biogenic amine metabolites in plasma, cerebrospinal fluid and urine by capillary column gas chromatography-high-resolution mass spectrometry with selected-ion monitoring.  |  Davis, BA., et al. 1986. J Chromatogr. 374: 227-38. PMID: 3958083

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Benzoyl chloride-d5, 1 g

sc-233971
1 g
$250.00