2-Methoxy-4-nitroaniline

  • 4-Nitro-o-anisidine
  • C.I. 37125
  • Azoic Diazo No. 5
Formula
2-(CH3O)-4-(NO2)C6H3NH2
Structure
Description
Yellow to orange powder.

Registry Numbers and Inventories.
CAS
97-52-9
EC (EINECS/ELINCS)
202-588-6
EC Class
harmful
R 20/21/22 33
S 28 36/37
RTECS
BZ7170000
RTECS class
Other
UN (DOT)
2811
Beilstein/Gmelin
879619
Beilstein Reference
4-13-00-00903
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C7H8N2O3
Formula mass
168.15
Melting point, °C
139
Boiling point, °C
364
Vapor pressure, mmHg
2E-5 (25 C)
Density
1.2112 g/cm3 (156 C)
Solubility in water
Slightly soluble
pKa/pKb
12.98 (pKb)
Partition coefficient, pKow
1.85
Heat of vaporization
61.0 kJ/mol
Heat of combustion
-3701 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Acids - acid chlorides - acid anhydrides - chloroformates - strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
174
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
May cause irritation of the digestive tract. May be harmful if swallowed.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
2811
Response guide
HS Code
2922 29 00