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Cat. No. M9099
SCH23390 Structure

SCH 23390

Size Price Availability
10mg USD 145  USD145 Out of stock
25mg USD 330  USD330 Out of stock
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Quality Control
  • Current batch:
  • Purity >98%
  • COA
  • MSDS
Biological Activity

SCH23390 is a potent dopamine receptor D1 antagonist with Ki values of 0.2 and 0.3 nM for the D1 and D5. SCH-23390 is also an agonist at 5-HT1C and 5-HT2C receptors in vitro (Ki values are 6.3 nM and 9.3 nM respectively). SCH23390 blocks quinpirole-induced Kir3 (GIRK) currents (EC50 = 268 nM) independently of receptors.

The repeated administration of SCH 23390 (0.05 mg/kg s.c., thrice daily for 21 days) enhances the steady-state density of dopamine D1 receptors in the striatum (+30%) and substantia nigra (+24%). This treatment also increases the production rates of dopamine D1 receptors in the striatum (+44%) and substantia nigra (+54%).

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

Chemical Information
Molecular Weight 287.78
Formula C17H18ClNO
CAS Number 87075-17-0
Purity >98%
Solubility DMSO
Storage at -20°C

[1] Daniele Bertoglio, et al. Kinetic Modelling and Test-Retest Reproducibility for the Dopamine D 1 R Radioligand [ 11 C]SCH23390 in Healthy and Diseased Mice

[2] Yosef Avchalumov, et al. SCH23390 Reduces Methamphetamine Self-Administration and Prevents Methamphetamine-Induced Striatal LTD

[3] Ruey-Kuang Cheng, et al. Examination of the effects of SCH23390 and raclopride infused in the dorsal striatum on amphetamine-induced timing impulsivity measured on a differential reinforcement of low-rate responding (DRL) task in rats

[4] Qiaofeng Liu, et al. Injection of D1 receptor antagonist SCH23390 into the periaqueductal gray attenuates morphine withdrawal symptoms in rats

[5] Yoriko Akimoto, et al. SCH23390, a dopamine D1 receptor antagonist, suppressed scratching behavior induced by compound 48/80 in mice

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Keywords: SCH23390, SCH 23390 supplier, Dopamine Receptor, inhibitors

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