4,4'-Methylenebis(2-methylaniline)

  • 4,4'-Diamino-3,3'-dimethyldiphenylmethane
  • 3,3'-Dimethyl-4,4'-diaminodiphenylmethane
  • Bis(3-methyl-4-aminophenyl)methane
  • Kayabond C 100
Formula
C15H18N2
Structure
Description
Potential carcinogen.
Uses
Dye stuff.

Registry Numbers and Inventories.
CAS
838-88-0
EC (EINECS/ELINCS)
212-658-8
EC Index Number
612-085-00-7
45 22 43 50/53
53 45 60 61
RTECS
BY5300000
RTECS class
Tumorigen; Mutagen; Primary Irritant
UN (DOT)
3077
Beilstein/Gmelin
398069
Beilstein Reference
3-13-00-00496
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C15H18N2
Formula mass
226.35
Melting point, °C
149
Boiling point, °C
407
Vapor pressure, mmHg
8E-7 (25 C)
Solubility in water
Insoluble
pKa/pKb
5.18 (pKa)
Heat of vaporization
66 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store under argon.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Government approved respirator in nonventilated areas and/or for exposure above the TLV or PEL.
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. Sensitive to air.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide,

Fire.
Flash Point,°C
239
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.
Fire potential
May burn but does not ignite readily.
Hazards
Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
4
 
Flammability
0
 
 
Reactivity
1
 

Health.
Carcinogin
I-2B, CP65
Exposure effects
Toxic. Dangerous for the environment. May cause cancer. Harmful if swallowed. Irritating to eyes. May cause sensitization by skin contact. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
   Ingestion
Harmful if swallowed.
   Inhalation
Material may be irritating to mucous membranes and upper respiratory tract. May be harmful if inhaled.
   Skin
May cause skin irritation. May be harmful if absorbed through the skin.
   Eyes
Causes 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.
UN number
3077
Response guide
Hazard class
9
Packing Group
III