WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 414096

CAS#: 7432-25-9

Description: Etaqualone is a quinazolinone-class GABAergic and is an analogue of methaqualone that was developed in the 1960s and marketed mainly in France and some other European countries.

Chemical Structure

CAS# 7432-25-9

Theoretical Analysis

MedKoo Cat#: 414096
Name: Etaqualone
CAS#: 7432-25-9
Chemical Formula: C17H16N2O
Exact Mass: 264.13
Molecular Weight: 264.330
Elemental Analysis: C, 77.25; H, 6.10; N, 10.60; O, 6.05

Price and Availability

Size Price Availability Quantity
1mg USD 245 2 Weeks
5mg USD 583 2 Weeks
10mg USD 970 2 Weeks
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Synonym: Etaqualone; NSC96163; NSC-96163; NSC 96163

IUPAC/Chemical Name: 3-(o-Ethylphenyl)-2-methyl-4(3H)-quinazolinone


InChi Code: InChI=1S/C17H16N2O/c1-3-13-8-4-7-11-16(13)19-12(2)18-15-10-6-5-9-14(15)17(19)20/h4-11H,3H2,1-2H3


Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: To be determined

Shelf Life: >2 years if stored properly

Drug Formulation: To be determined

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

More Info:

Biological target:
In vitro activity:
In vivo activity:

Preparing Stock Solutions

The following data is based on the product molecular weight 264.33 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
In vitro protocol:
In vivo protocol:

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1: Hongkun Y, Jinlei L, Lina D, Yue W, Junmei W, Wurita A. Detection and quantification of psychotropic drug etaqualone in human hair using GC-MS/MS. Leg Med (Tokyo). 2021 Nov;53:101964. doi: 10.1016/j.legalmed.2021.101964. Epub 2021 Sep 8. PMID: 34521032.

2: Yang H, Dai L, Wang Y, Liu J, Qiu S, Gu J, Bai H, Wurita A, Liao L. Analytical method for detection and quantification of new emerging drug etaqualone in human blood and urine by gas chromatography tandem mass spectrometry. Leg Med (Tokyo). 2022 Nov;59:102125. doi: 10.1016/j.legalmed.2022.102125. Epub 2022 Jul 19. PMID: 35932525.

3: Yang H, Wang Y, Liu J, Qiu S, Gu J, Bai H, Li J, Wurita A, Hasegawa K. The next addiction-causing drug class 4-quinazolinone derivatives: analyses of methaqualone analogs including recently discovered 2-methoxyqualone by different modes of mass spectrometry. Forensic Toxicol. 2023 Jan;41(1):59-70. doi: 10.1007/s11419-022-00631-z. Epub 2022 Jun 28. PMID: 36652055.