Date published: 2026-2-21

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Ro 4-1284 (CAS 303-75-3)

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Alternate Names:
2-Hydroxy-2-ethyl-3-isobutyl-9,10-dimethoxy-1,2,3,4,5,6,7-hexahydrobenzo[a]chinolizine
CAS Number:
303-75-3
Molecular Weight:
347.49
Molecular Formula:
C21H33NO3
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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A reversible VMAT2 inhibitor. Proposed catecholamine depletor. Also a P-glycoprotein (P-GP) inhibitor. Researchers might explore its interactions with various substrates or its role as a building block in the synthesis of complex polymers. The structural characteristics of Ro 4-1284 could influence polymerization reactions or affect the physical properties of the resulting materials, such as elasticity, durability, or resistance to environmental stressors. In the realm of analytical chemistry, Ro 4-1284 might serve as a reference compound in the development of new analytical methods or in the calibration of analytical instruments.


Ro 4-1284 (CAS 303-75-3) References

  1. Uptake and liberation of mepacrine in blood platelets.  |  Picotti, GB., et al. 1976. Naunyn Schmiedebergs Arch Pharmacol. 292: 127-31. PMID: 1047793
  2. On the role of storage granules in the functional utilization of newly synthesized dopamine.  |  Shore, PA. 1976. J Neural Transm. 39: 131-8. PMID: 1049242
  3. Dopamine neuronal transport kinetics and effects of amphetamine.  |  Jones, SR., et al. 1999. J Neurochem. 73: 2406-14. PMID: 10582600
  4. Role for dopamine in malonate-induced damage in vivo in striatum and in vitro in mesencephalic cultures.  |  Moy, LY., et al. 2000. J Neurochem. 74: 1656-65. PMID: 10737624
  5. Modulation of dihydroxyphenylacetaldehyde extracellular levels in vivo in the rat striatum after different kinds of pharmacological treatment.  |  Fornai, F., et al. 2000. Brain Res. 861: 126-34. PMID: 10751572
  6. Binding of [3H]dihydrotetrabenazine and [125I]azidoiodoketanserin photoaffinity labeling of the monoamine transporter of platelet 5-HT organelles.  |  Cesura, AM., et al. 1990. Eur J Pharmacol. 186: 95-104. PMID: 2149340
  7. Mechanisms of effects of d-fenfluramine on brain serotonin metabolism in rats: uptake inhibition versus release.  |  Fuller, RW., et al. 1988. Pharmacol Biochem Behav. 30: 715-21. PMID: 2463643
  8. Concurrent Inhibition of Vesicular Monoamine Transporter 2 Does Not Protect Against 3,4-Methylenedioxymethamphetamine (Ecstasy) Induced Neurotoxicity.  |  Cholanians, AB., et al. 2019. Toxicol Sci. 170: 157-166. PMID: 30923810
  9. Brain norepinephrine and convulsions in the genetically epilepsy-prone rat: sex-dependent responses to Ro 4-1284 treatment.  |  Mishra, PK., et al. 1988. Life Sci. 42: 1131-7. PMID: 3347143
  10. Neuronal sodium homoeostatis and axoplasmic amine concentration determine calcium-independent noradrenaline release in normoxic and ischemic rat heart.  |  Schömig, A., et al. 1988. Circ Res. 63: 214-26. PMID: 3383376
  11. Effects of amfonelic acid, alpha-methyltyrosine, Ro 4-1284 and haloperidol pretreatment on the depletion of striatal dopamine by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine in mice.  |  Fuller, RW. and Hemrick-Luecke, SK. 1985. Res Commun Chem Pathol Pharmacol. 48: 17-25. PMID: 3873102
  12. Depletion of epinephrine in rat hypothalamus by Ro 4-1284: influence of pargyline and harmaline.  |  Fuller, RW. and Hemrick-Luecke, SK. 1980. Brain Res Bull. 5: 589-91. PMID: 6903452
  13. Effect of a reserpine-like agent on the release and metabolism of [3H]NA in cell bodies and terminals.  |  Filinger, EJ. 1994. Gen Pharmacol. 25: 1039-43. PMID: 7835622
  14. Monoamine oxidase-A inhibitors and dopamine metabolism in rat caudatus: evidence that an increased cytosolic level of dopamine displaces reversible monoamine oxidase-A inhibitors in vivo.  |  Colzi, A., et al. 1993. J Pharmacol Exp Ther. 265: 103-11. PMID: 8473998
  15. Uptake and retention kinetics of para-fluorine-18-fluorobenzylguanidine in isolated rat heart.  |  Berry, CR., et al. 1996. J Nucl Med. 37: 2011-6. PMID: 8970525

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Ro 4-1284, 5 mg

sc-255523
5 mg
$128.00