ChemicalBook >> CAS DataBase List >>8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride

8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride

CAS No.
75704-24-4
Chemical Name:
8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride
Synonyms
WAY 161503;WAY 161503 hydrochlo;WAY 161503 HYDROCHLORIDE;(Rac) WAY 161503,(Rac)WAY161503;1H-Pyrazino[1,2-a]quinoxalin-5(6H)-one, 8,9-dichloro-2,3,4,4a-tetrahydro-;8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride
CBNumber:
CB2265207
Molecular Formula:
C11H11Cl2N3O
Molecular Weight:
272.13
MDL Number:
MFCD06411596
MOL File:
75704-24-4.mol
MSDS File:
SDS
Last updated:2026-09-12 18:50:36

8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride Properties

Boiling point 513.9±50.0 °C(Predicted)
Density 1.54±0.1 g/cm3(Predicted)
storage temp. Desiccate at RT
solubility DMF: 30 mg/ml; DMF:PBS(pH 7.2)(1:1): 0.5 mg/ml; DMSO: 25 mg/ml; Ethanol: 1 mg/ml
form A crystalline solid
pka 12.09±0.20(Predicted)
color Off-white to light yellow
FDA UNII SCG2HM6F3D

8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride price More Price(26)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Cayman Chemical 17269 WAY-161503 ≥98% 75704-24-4 1mg $36 2026-04-30 Buy
Cayman Chemical 17269 WAY-161503 ≥98% 75704-24-4 5mg $103 2026-04-30 Buy
Cayman Chemical 17269 WAY-161503 ≥98% 75704-24-4 10mg $169 2026-04-30 Buy
Cayman Chemical 17269 WAY-161503 ≥98% 75704-24-4 50mg $667 2026-04-30 Buy
ChemScene CS-0109487 (Rac)-WAY-161503 98.49% 75704-24-4 5mg $152 2026-06-04 Buy
Product number Packaging Price Buy
17269 1mg $36 Buy
17269 5mg $103 Buy
17269 10mg $169 Buy
17269 50mg $667 Buy
CS-0109487 5mg $152 Buy

8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride Chemical Properties, Uses, Production

Uses

8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one is a selective 5-hydroxytryptamine 2C receptor agonist with putative antidepressant like properties. It also blocks and decreases baseline nicotine-induced locomotor activity in rats.

Biological Activity

Potent and selective 5-HT 2C receptor agonist (K i = 4 nM; EC 50 = 12 nM). Antidepressant following systemic administration in vivo .

in vivo

(Rac)-WAY-161503 (3-30 mg/kg; intraperitoneal injection; male C57BL/6J mice) dose-dependently decreases locomotor activity, an effect that is blocked by the 5-HT2C/2B antagonist SER-082[1].

Animal Model:Male C57BL/6J mice with hallucinogen 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI)[1]
Dosage:3 mg/kg, 10 mg/kg, 30 mg/kg
Administration:Intraperitoneal injection (i.p.)
Result:Dose-dependently decreased locomotor activity, an effect that was blocked by the 5-HT2C/2B antagonist SER-082.

IC 50

5-HT2C Receptor: 4 nM (Ki); 5-HT2C Receptor: 12 nM (EC50)

8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride Preparation Products And Raw materials

Raw materials

Preparation Products

8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride Suppliers

Global Suppliers ( 39)
Supplier Tel Email Country ProdList Advantage
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
EMMX Biotechnology LLC 888-539-0666 info@emmx.com United States 8435 60
Shanghai EFE Biological Technology Co., Ltd. 021-65675885 18964387627 info@efebio.com China 9799 58
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
Shanghai Hongye Biotechnology Co. Ltd 400-9205774 400-920-5774 sales@glpbio.cn China 6705 58
TargetMol Chemicals Inc. +1-781-999-5354; +1-00000000000 marketing@targetmol.com United States 32431 58
ChemeGen(Shanghai) Biotechnology Co.,Ltd. 18818260767 sales@chemegen.com China 11123 58
Shanghai hongqu biomedical technology co. LTD 88888888888 hongquchem@qq.com China 5123 58
Energy Chemical 021-58432009 400-005-6266 marketing@energy-chemical.com China 44871 58
Beijing Jin Ming Biotechnology Co., Ltd. 010-60605840 psaitong@jm-bio.com China 27626 58

View Latest Price from 8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
(Rac)-WAY-161503 pictures 2026-07-27 (Rac)-WAY-161503
75704-24-4
$86.00-192.00 99.51% 10g TargetMol Chemicals Inc.
(Rac)-WAY-161503 pictures 2026-07-27 (Rac)-WAY-161503
75704-24-4
$86.00-192.00 99.51% 10g TargetMol Chemicals Inc.
WAY 161503 HYDROCHLORIDE WAY 161503 1H-Pyrazino[1,2-a]quinoxalin-5(6H)-one, 8,9-dichloro-2,3,4,4a-tetrahydro- WAY 161503 hydrochlo (Rac) WAY 161503,(Rac)WAY161503 8,9-Dichloro-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-one hydrochloride 75704-24-4 C11H12Cl3N3O C11H11Cl2N3OHCl Serotonin receptor