Methaqualone hydrochloride
Methaqualone hydrochloride (CAS: 340-56-7), with the molecular formula C16H14N2O · HCl and a molecular weight of 286.76 g/mol, is a chemical compound primarily recognised for its historical pharmaceutical applications as a sedative and hypnotic agent. It is classified as a controlled substance in many jurisdictions. Tech Serve Solutions (TSS) supplies this compound for analytical, research, and forensic purposes.
- IUPAC
- 2-Methyl-3-(2-methylphenyl)-4(3H)-quinazolinone hydrochloride

Analytical Standards
Methaqualone hydrochloride serves as a reference standard in analytical chemistry laboratories for the identification and quantification of the substance in various matrices. It is crucial for forensic analysis and quality control.
Research Chemical
This compound is used in pharmacological and toxicological research to study its properties and effects. Its availability as a research chemical aids in understanding its biochemical pathways and potential impacts.
Forensic Science
In forensic applications, Methaqualone hydrochloride is used as a certified reference material for drug testing and identification. This ensures accurate and reliable results in criminal investigations.
| Molecular weight | 286.76 |
|---|---|
| Empirical formula | C16H14N2O · HCl |

Hazard statements
- H301Toxic if swallowed
Precautionary statements
- P301IF SWALLOWED
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Drug Control | USDEA Schedule I; Home Office Schedule 2; stup |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Methaqualone hydrochloride used for?
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Methaqualone hydrochloride is primarily used as an analytical standard for forensic, toxicological, and research purposes. Historically, it was used as a sedative and hypnotic.
What is the CAS number and chemical formula for Methaqualone hydrochloride?
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The CAS number is 340-56-7 and the chemical formula is C16H14N2O · HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methaqualone hydrochloride for research and analytical use. The specific assay and grade will be detailed on the Certificate of Analysis provided with the product. TSS does not represent this product as USP, BP, or EP grade.
How should Methaqualone hydrochloride be handled safely?
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Methaqualone hydrochloride is classified as acutely toxic if swallowed (H301) and requires careful handling. Use appropriate personal protective equipment, including a dust mask (type N95), eyeshields, face shields, and gloves. Ensure good ventilation and avoid dust formation. Accidental ingestion is dangerous (P301 + P310).
Is Methaqualone hydrochloride a controlled substance?
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Yes, Methaqualone hydrochloride is a controlled substance. In the United States, it is DEA Schedule I, and in the UK, it is Home Office Schedule 2. It is also classified as a 'stup' substance, indicating its psychoactive properties and regulatory status.
How is Methaqualone hydrochloride shipped and exported?
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Methaqualone hydrochloride is shipped according to international regulations for hazardous materials, classified under UN 2811, Class 6.1, Packing Group III. TSS can assist with export documentation and compliance.
How can I request a sample or quote for Methaqualone hydrochloride?
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To request a sample or quote, please contact our sales department through the website or by calling. Provide your contact details and the quantity required for prompt assistance.
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