The molecular formula of N,N-Diethyl-m-toluidine(91-67-8) is C₁₁H₁₇N and its formula weight is 163.26.
The density of N,N-Diethyl-m-toluidine(91-67-8) is 0.923 g/cm³. The boiling point is  243.6 °C at 760 mmHg . The refractive index is about  1.53 . Its flash point is  98.4 °C.
The chemical synonyms of N,N-Diethyl-m-toluidine(91-67-8) are 3-(DIETHYLAMINO)-1-METHYLBENZENE;3-(DIETHYLAMINO)TOLUENE;N,N-DIETHYL-M-TOLUIDINE;N,N-DIETHYL-3-TOLUIDINE;1-(Diethylamino)-3-methylbenzene;3-(N,N-Diethylamino)toluene;3-Methyl-N,N-diethylaniline;3-Methyl-N,N-diethylbenzenamine
The molecular structure of N,N-Diethyl-m-toluidine(91-67-8):

RTECS#: CAS# 91-67-8: CX9869375
 
LD50/LC50: RTECS:
CAS# 91-67-8: Inhalation, rat: LC50 = 4660 mg/m3/4H;
.
 
Carcinogenicity: N,N-DIETHYL-M-TOLUIDINE, 99+% (GC) - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.
 
Other: See actual entry in RTECS for complete information.

Hazard Codes  Xn,N,T
Risk Statements  36/37/38-20/21/22-51/53-26-24/25
Safety Statements  24/25-61-45-36/37-28
RIDADR  UN 1708 6.1/PG 2
RTECS  CX9869375

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN 
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with skin and if swallowed. 
R 36/37/38 Irritating to eyes, respiratory system and skin. 
 
Safety Phrases:
S 24/25 Avoid contact with skin and eyes. 
 
WGK (Water Danger/Protection)
CAS# 91-67-8: 2
 
Canada
CAS# 91-67-8 is listed on Canada's NDSL List
 
US Federal
TSCA
CAS# 91-67-8 is listed on the TSCA Inventory.