4,4′-Diamino-3,3′-dimethyldiphenylmethane
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4,4′-Diamino-3,3′-dimethyldiphenylmethane
structure -
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CAS No:
838-88-0
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Formula:
C15H18N2
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Chemical Name:
4,4′-Diamino-3,3′-dimethyldiphenylmethane
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Synonyms:
Benzenamine,4,4′-methylenebis[2-methyl-;o-Toluidine,4,4′-methylenedi-;4,4′-Methylenebis[2-methylbenzenamine];3,3′-Dimethyl-4,4′-diaminodiphenylmethane;2,2′-Dimethyl-4,4′-methylenedianiline;4,4′-Diamino-3,3′-dimethyldiphenylmethane;4,4′-Methylenedi-o-toluidine;Bis(3-methyl-4-aminophenyl)methane;4,4′-Methylenebis[2-methylaniline];Kayahard MDT;4,4′-Methylenebis(o-toluidine);Kayabond C 100;Di(3-methyl-4-aminophenyl)methane;4,4′-Amino-3,3′-dimethyldiphenylmethane;NSC 37146;Bis(4-amino-3-methylphenyl)methane;54649-88-6
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CAS No:
Description
White powder. Soluble in ethanol and hot water.
4,4'-Methylene bis(2-methylaniline) is a diarylmethane.
4,4′-Diamino-3,3′-dimethyldiphenylmethane Basic Attributes
226.32
226.32
212-658-8
OM5XWD3S2I
37146
DTXSID5020867
2921590090
Safety Information
Ⅲ
6.1(b)
UN 3077 9/PG 3
3
45-22-43-50/53
53-45-60-61
BY5300000
T,N
P201-P273-P280-P308 + P313-P501
H302-H317-H350-H410
|Danger|H302: Harmful if swallowed [Warning Acute toxicity, oral]|P201, P202, P261, P264, P270, P272, P273, P280, P281, P301+P312, P302+P352, P308+P313, P321, P330, P333+P313, P363, P391, P405, and P501|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|Aggregated GHS information provided by 156 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H350: May cause cancer [Danger Carcinogenicity]|P201, P202, P281, P308+P313, P405, and P501|Warning|P201, P202, P261, P264, P270, P272, P280, P281, P301+P312, P302+P352, P305+P351+P338, P308+P313, P321, P330, P333+P313, P337+P313, P363, P405, and P501
4,4′-Diamino-3,3′-dimethyldiphenylmethane Use and Manufacturing
(1) o-toluidine, water, 37percent hydrochloric acid was added to the reactor, The reaction was stirred for 30min, Wherein o-toluidine and hydrochloric acid molar ratio of 1: 1.2, O toluidine and water weight ratio of 1: 4; (2) 37percent formaldehyde solution was diluted to 10percent; (3) The reaction solution in step (1) and the formaldehyde solution in step (2) are respectively transported to two inlets of the microreactor through a advection pump, The volume flow ratio of the reaction solution of step (1) and the step formaldehyde of step (2)Control o-toluidine and formaldehyde molar ratio of 3: 1; (4 ) The two raw materials in contact with the microreactor, mixing and reaction, Outflow from the reactor outlet, The reaction temperature was controlled at 40 ° C, Micro-reactor liquid hourly space velocity of 3000h-1; (5) cooling the reaction solution to room temperature, Aqueous sodium hydroxide solution was added dropwise, To pH about 9, A large number of white precipitate precipitation, filter, drying, Get MDT crude;(6) crude MDT by ethanol recrystallization, filter, dry, Get MDT, Molar yield86percentPurity 99percent.In a typical run, zeolite (9.0 g), formaldehyde (0.3 mol), and o-tolylamine (0.6–3 mol) were added into a 500 mL autoclave madein Weihai Zhengwei Machinery Equipment Corporation Ltd, China.The sealed reactor was purged with nitrogen and then heated up tothe designed temperaturewith stirring. After the reactionwent throughthe scheduled times, the product mixture was sampled for HPLCanalysis.
3,3'-dimethylbenzidine be used for preparation polyimide and epoxy resin material.
Benzenamine, 4,4'-methylenebis[2-methyl-: ACTIVE
Health Hazards -> Carcinogens
Computed Properties
Molecular Weight:226.32
XLogP3:2.6
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:2
Exact Mass:226.146998583
Monoisotopic Mass:226.146998583
Topological Polar Surface Area:52
Heavy Atom Count:17
Complexity:217
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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4,4′-Diamino-3,3′-dimethyldiphenylmethane
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