4,4'-Methylenebis(N,N-dimethylaniline)
Michler's base
Methane base
Bis[4-(dimethylamino)phenyl]methane
Michler's hydride
Physical Properties
Melting Point
194 to 196 °F (NTP, 1992)
91.5 °C
Boiling Point
734 °F at 760 mmHg (NTP, 1992)
390 °C decomposes
BP: 155-157 °C at 0.1 mm Hg
BP: 183 °C at 3 mm Hg
Density
1.14 at 68 °F (NTP, 1992) - Denser than water; will sink
Physical Description
Yellowish glistening leaflets or plates or tan crystals. Weak odor. Sublimes without decomposition. (NTP, 1992)
Yellowish solid; [Hawley] Crystalline powder
Appearance
Lustrous leaflets
Yellowish leaflets or glistening plates
Platelets or tablets from alcohol, ligand
State
Solid
Storage Conditions
STORAGE PRECAUTIONS: You should store this chemical under ambient temperatures, and keep it away from oxidizing materials and acids. (NTP, 1992)
Computed Properties
Structural Parameters
Heavy atom count
19
Aromatic heavy atom count
12
Fraction Csp3
0.29
Rotatable bonds
4
H-bond acceptors
2
Molar refractivity
84.34
TPSA
6.48
LogP / Solubility
WLOGP
3.41
MLOGP
3.01
XLogP3
3.9
Consensus LogP
3.44
Log S (ESOL)
-3.77
Class (ESOL)
Poorly soluble
Log S (Ali)
-4.11
Class (Ali)
Slightly soluble
Log S (SILICOS-IT)
-4.62
Class (SILICOS-IT)
Slightly soluble
ADME
GI absorption
High
BBB permeant
Yes
P-gp substrate
No
CYP1A2 inhibitor
Yes
CYP2C19 inhibitor
Yes
CYP2C9 inhibitor
No
CYP2D6 inhibitor
Yes
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-1.85
Drug-likeness / Medicinal Chemistry
Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
Yes
Bioavailability score
0.55
PAINS alerts
1
Leadlikeness
Yes
Synthetic Accessibility
1.5
Safety & Transport
Pictogram(s)
Health Hazard
Environmental Hazard
Signal
Danger
Warning
GHS Hazard Statements
H350 (100%): May cause cancer [Danger Carcinogenicity]
H400 (100%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
H410 (100%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]
H350: May cause cancer [Danger Carcinogenicity]
H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
Precautionary Statement Codes
P203, P273, P280, P318, P391, P405, and P501
P203, P260, P280, P318, P319, P405, and P501
P203, P280, P301+P317, P318, P405, and P501