Basic information Safety Use Preparation Products And Raw materials Related
Lorazepam Structure

Lorazepam

Chemical Properties

Melting point 166-168°C
Boiling point 533.8±50.0 °C(Predicted)
Density  1.4835 (rough estimate)
refractive index  1.6070 (estimate)
Flash point 11 °C
storage temp.  −20°C
solubility  Practically insoluble in water, sparingly soluble in ethanol (96 per cent), sparingly soluble or slightly soluble in methylene chloride.
pka pK1 1.3; pK2 11.5(at 25℃)
Water Solubility  54mg/L(temperature not stated)
BCS Class 1
Stability hygroscopic
CAS DataBase Reference 846-49-1(CAS DataBase Reference)
FDA UNII O26FZP769L
NCI Dictionary of Cancer Terms lorazepam
NCI Drug Dictionary Ativan
ATC code N05BA06,N05BA56
Proposition 65 List Lorazepam
NIST Chemistry Reference Lorazepam(846-49-1)
EPA Substance Registry System Lorazepam (846-49-1)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H361
Precautionary statements P201-P202-P280-P308+P313-P405-P501
Hazard Codes  Xn,T,F
Risk Statements  63-39/23/24/25-23/24/25-11-36-20/21/22
Safety Statements  36/37-45-16
RIDADR  UN 1230 3/PG 2
WGK Germany  3
RTECS  DF0350000
HS Code  2933910000
Toxicity LD50 in mice, rats (mg/kg): 3178, >5000 orally (Owen)
NFPA 704:
3
2 0

Lorazepam Chemical Properties,Usage,Production