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HomeProduct name listAfloqualone

Afloqualone

  • CAS NO.:56287-74-2
  • Empirical Formula: C16H14FN3O
  • Molecular Weight: 283.3
  • MDL number: MFCD00867693
  • EINECS: 1592732-453-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-07-07 16:22:03
Afloqualone Structural

What is Afloqualone?

Description

Afloqualone is a centrally acting muscle relaxant useful in the management of various spastic conditions, including cerebral palsy, cervical spondylosis, and multiple sclerosis. It is closely related to the hypnotidsedative methaqualone.

Description

Afloqualone (Item No. 21834) is an analytical reference standard categorized as a quinazolinone. This product is intended for research and forensic applications.

Originator

Tanabe (Japan)

The Uses of Afloqualone

Afloqualone acts as a muscle relaxant in humans and may be used in the treatment of muscle spasms affecting rheumatoid arthritis.

Definition

ChEBI: Afloqualone is an organic molecular entity.

Manufacturing Process

14.4 g (0.053 mol) of N-(2-amino-5-nitrobenzoyl)-o-toluidine and 6.3 g (0.08 mol) of pyridine are dissolved in 300 ml of tetrahydrofuran. 12.2 g (0.126 mol) of fluoroacetyl chloride are added to the solution for 10 minutes under ice-cooling. The solution is stirred at the same temperature for 30 minutes and then at room temperature for 2.5 hours. The reaction solution is allowed to stand at room temperature overnight. The crystalline precipitate is collected by filtration, washed with water and then dried. 16.4 g of N-(2- fluoroacetamido-5-nitrobenzoyl)-o-toluidine are obtained. Yield: 93.7%; MP 238-239°C.
16.5 g (0.05 mol) of N-(2-fluoroacetamido-5-nitrobenzoyl)-o-toluidine and 25.5 g (0.25 mol) of acetic acid anhydride are dissolved in 250 ml of glacial acetic acid. The solution is refluxed for 2 hours under heating. Then, the reaction solution is evaporated to remove solvent. The residue thus obtained is poured into ice-water, and the aqueous mixture is adjusted to pH 9 with potassium carbonate. The crystalline precipitate is collected by filtration. 15.5 g of 2-fluoromethyl-3-(o-tolyl)-6-nitro-4(3H)-quinazolinone are obtained. Yield: 98.7%; MP 155-158°C (recrystallized from ethanol).
A mixture of 2.0 g (0.064 mol) of 2-fluoromethyl-3-(o-tolyl)-6-nitro-4(3H)- quinazolinone, 0.2 g of 5% palladium-carbon and 100 ml of acetic acid is shaken for 30 minutes in hydrogen gas. The initial pressure of hydrogen gas is adjusted to 46 lb and the mixture is heated with an infrared lamp during the reaction. After 30 minutes of this reaction, the pressure of hydrogen gas decreases to 6 lb. After the mixture is cooled, the mixture is filtered to remove the catalyst. The filtrate is evaporated to remove acetic acid, and the residue is dissolved in chloroform. The chloroform solution is washed with 5% aqueous sodium hydroxide and water, successively. Then, the solution is dried and evaporated to remove solvent. The oily residue thus obtained is dissolved in 2 ml of chloroform, and the chloroform solution is passed through a column of 200 g of silica gel. The silica gel column is eluted with ethyl acetatebenzene (1:1). Then, the eluate is evaporated to remove solvent. The crude crystal obtained is washed with isopropyl ether and recrystallized from isopropanol. 0.95 g of 2-fluoromethyl-3-(o-tolyl)-6-amino-4(3H)-quinazolinone is obtained. Yield: 52.5%; MP 195-196°C.

brand name

AROFUTO

Therapeutic Function

Muscle relaxant

Properties of Afloqualone

Melting point: 195-196°C
Boiling point: 492.5±55.0 °C(Predicted)
Density  1.2529 (estimate)
storage temp.  under inert gas (nitrogen or Argon) at 2–8 °C
solubility  DMSO (Slightly), Methanol (Slightly)
form  Solid
pka 2.73±0.70(Predicted)
color  White to Off-White
InChI InChI=1S/C16H14FN3O/c1-10-4-2-3-5-14(10)20-15(9-17)19-13-7-6-11(18)8-12(13)16(20)21/h2-8H,9,18H2,1H3
CAS DataBase Reference 56287-74-2(CAS DataBase Reference)

Safety information for Afloqualone

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H302:Acute toxicity,oral
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P270:Do not eat, drink or smoke when using this product.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P330:Rinse mouth.
P362:Take off contaminated clothing and wash before reuse.
P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313:IF SKIN irritation occurs: Get medical advice/attention.
P337+P313:IF eye irritation persists: Get medical advice/attention.
P405:Store locked up.
P403+P233:Store in a well-ventilated place. Keep container tightly closed.
P501:Dispose of contents/container to..…

Computed Descriptors for Afloqualone

InChIKey VDOSWXIDETXFET-UHFFFAOYSA-N
SMILES N1C2=C(C=C(N)C=C2)C(=O)N(C2=CC=CC=C2C)C=1CF

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