Flurazepam dihydrochloride
Flurazepam dihydrochloride (CAS 1172-18-5), with the molecular formula C21H23ClFN3O · 2HCl and a molecular weight of 460.80 g/mol, is a light yellow solid. As a derivative of benzodiazepine, it is primarily utilised as an analytical standard and in research concerning neurobiology and pharmacology. Its defined chemical properties make it valuable for laboratory applications requiring precise reference materials.
- IUPAC
- 7-Chloro-1-(diethylamino)ethyl-5-(2-fluorophenyl)-3H-1,4-benzodiazepin-2(1H)-one dihydrochloride

Analytical Reference Standard
Flurazepam dihydrochloride serves as a crucial analytical standard in chromatography and other analytical techniques. It is employed to identify and quantify related substances in various matrices.
Neuroscience Research
This compound is used in neuroscience research to investigate the mechanisms of action of benzodiazepines and their effects on the central nervous system. It aids in understanding sleep-wake cycles and anxiety pathways.
Pharmacological Studies
In pharmacological studies, Flurazepam dihydrochloride is used as a tool to explore drug interactions and metabolism. Its well-defined chemical structure allows for precise experimental design.
| Molecular weight | 460.80 |
|---|---|
| Empirical formula | C21H23ClFN3O · 2HCl |
| Form | solid |
| Colour | light yellow |
| Solubility | 45% (w/v) aq 2-hydroxypropyl-β-cyclodextrin: H2O: slightly soluble |


Hazard statements
- H302Harmful if swallowed
- H373May cause damage to organs through prolonged exposure
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-33 |
| Safety statements (S) | 22-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Drug Control | USDEA Schedule IV; Home Office Schedule 4.1; psychotrope; kontrollierte Droge in Deutschland; regulated under CDSA - not available from Canada |
|---|
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 Flurazepam dihydrochloride used for?
+
Flurazepam dihydrochloride is primarily used as an analytical reference standard in research settings, particularly in neurobiology and pharmacology.
What is the CAS number and formula for Flurazepam dihydrochloride?
+
The CAS number is 1172-18-5, and the empirical formula is C21H23ClFN3O · 2HCl.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Flurazepam dihydrochloride as a research-grade chemical. The specific assay/purity is detailed on the product's Certificate of Analysis. TSS does not represent this product as USP, BP, or EP grade.
How should Flurazepam dihydrochloride be handled safely?
+
Handle Flurazepam dihydrochloride with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. It is classified as harmful if swallowed (H302) and may cause damage to organs through prolonged or repeated exposure (H373). Work in a well-ventilated area.
Is Flurazepam dihydrochloride a controlled substance?
+
Yes, Flurazepam dihydrochloride is a controlled substance. It is classified under US DEA Schedule IV, Home Office Schedule 4.1 in the UK, and is a psychotropic and regulated drug in Germany. It is not available from Canada due to CDSA regulations.
How is Flurazepam dihydrochloride packed, shipped, and exported?
+
Flurazepam dihydrochloride is securely packed according to international shipping regulations for chemical compounds. TSS is experienced in exporting fine chemicals globally.
How can I request a sample or quote for Flurazepam dihydrochloride?
+
To request a sample or obtain a quote for Flurazepam dihydrochloride, please contact our sales team through the website or by phone, providing your specific requirements.
▶ Related products

(−)-Curcumol
C15H24O2
Cell Biology
(±) Clopidogrel hydrogensulfate
Cell Biology

(±)-L-Alliin
C6H11NO3S
Cell Biology
(±)-2-Amino-4-phosphonobutyric acid
C4H10NO5P
Cell Biology
(±)-2-Methylarachidonoyl-2′-fluoroethylamide
C23H38NOF
Cell Biology
(±)-3,4-Methylenedioxy-N-ethylamphetamine hydrochloride
Cell Biology

(±)-3,4-Methylenedioxyamphetamine hydrochloride
Cell Biology

(±)-3,4-Methylenedioxymethamphetamine hydrochloride
Cell Biology
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis