Date published: 2026-5-23

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R(−)-α-Methylhistamine Dihydrochloride (CAS 75614-89-0)

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Application:
R(−)-α-Methylhistamine Dihydrochloride is a selective H3 histamine receptor agonist
CAS Number:
75614-89-0
Molecular Weight:
198.09
Molecular Formula:
C6H13Cl2N3
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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A potent and selective H3 histamine receptor agonist which crosses the blood-brain barrier. It inhibits histamine synthesis and release.


R(−)-α-Methylhistamine Dihydrochloride (CAS 75614-89-0) References

  1. Histamine H(3) receptor-mediated inhibition of endogenous acetylcholine release from the isolated, vascularly perfused rat stomach.  |  Yokotani, K., et al. 2000. Eur J Pharmacol. 392: 23-9. PMID: 10748268
  2. Histamine H3 receptor-mediated inhibition of sympathetically evoked mydriasis in rats.  |  Yu, Y., et al. 2001. Eur J Pharmacol. 419: 55-9. PMID: 11348630
  3. Disturbance of the prejunctional modulation of cholinergic neurotransmission during chronic granulomatous inflammation of the mouse ileum.  |  De Man, JG., et al. 2001. Br J Pharmacol. 133: 695-707. PMID: 11429394
  4. Effects of histamine precursor and (R)-alpha-methylhistamine on the avoidance response in rats.  |  Rubio, S., et al. 2001. Behav Brain Res. 124: 177-81. PMID: 11640971
  5. Improvement of spatial memory by (R)-alpha-methylhistamine, a histamine H(3)-receptor agonist, on the Morris water-maze in rat.  |  Rubio, S., et al. 2002. Behav Brain Res. 129: 77-82. PMID: 11809497
  6. Histamine innervation and activation of septohippocampal GABAergic neurones: involvement of local ACh release.  |  Xu, C., et al. 2004. J Physiol. 561: 657-70. PMID: 15486020
  7. Role of the histamine system in nefopam-induced antinociception in mice.  |  Girard, P., et al. 2004. Eur J Pharmacol. 503: 63-9. PMID: 15496297
  8. Synergistic interaction between fentanyl and the histamine H3 receptor agonist R-(alpha)-methylhistamine, on the inhibition of nociception and plasma extravasation in mice.  |  Poveda, R., et al. 2006. Eur J Pharmacol. 541: 53-6. PMID: 16762339
  9. Histamine H3 receptor agonists decrease hypothalamic histamine levels and increase stereotypical biting in mice challenged with methamphetamine.  |  Kitanaka, J., et al. 2011. Neurochem Res. 36: 1824-33. PMID: 21573995
  10. Differential expression and signaling of the human histamine H3 receptor isoforms of 445 and 365 amino acids expressed in human neuroblastoma SH-SY5Y cells.  |  Nieto-Alamilla, G., et al. 2018. J Recept Signal Transduct Res. 38: 141-150. PMID: 29557708
  11. Compound 48/80 reduces the crop-emptying rate, likely through a histamine-associated pathway in chicks.  |  Tachibana, T., et al. 2019. Domest Anim Endocrinol. 66: 57-63. PMID: 30472035
  12. The Neuroprotective Effects of Histamine H3 Receptor Antagonist E177 on Pilocarpine-Induced Status Epilepticus in Rats.  |  Alachkar, A., et al. 2019. Molecules. 24: PMID: 31739417

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

R(−)-α-Methylhistamine Dihydrochloride, 100 mg

sc-208217
100 mg
$460.00