Prazepam

  • 7-Chloro-1-(cyclopropylmethyl)-1,3-dihydro-5-phenyl-2H-1,4-benzodiazepin-2-one
  • 7-Chloro-1-cyclopropylmethyl-5-phenyl-1H-1,4-benzodiazepin-2(3H)-one
  • Demetrin
  • K-373
  • Lysanxia
Formula
C19H17ClN2O
Structure
Uses
Anxiolytic. US DEA Schedule IV.

Registry Numbers and Inventories.
CAS
2955-38-6
EC (EINECS/ELINCS)
220-975-8
22 24/25
RTECS
DF2368000
RTECS class
Tumorigen; Drug; Reproductive Effector
Merck
12,7895
Beilstein/Gmelin
895797
Beilstein Reference
5-24-04-00304
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C19H17ClN2O
Formula mass
324.81
Melting point, °C
145 - 146
Boiling point, °C
439
Vapor pressure, mmHg
1E-11 (25 C)
Solubility in water
Insoluble
pKa/pKb
10.56 (pKb)
Heat of vaporization
81.6 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Protective gloves. Chemical safety goggles.
Respirators
Wear dust mask.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides, Hydrogen chloride gas.

Fire.
Flash Point,°C
280
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Emits toxic fumes under fire conditions.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Avoid contact and inhalation. Target organ(s): Central nervous system.
   Ingestion
May be harmful if swallowed.
   Inhalation
May be harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If breathing becomes difficult, call a physician.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.