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Cas:101-68-8
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Cas:101-68-8
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Cas:101-68-8
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inquiryProduct Detail Minimum Order Qty. 10 Gram
Cas:101-68-8
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inquiry4,4'-Diphenylmethane diisocyanate CAS:101-68-8 Specification Melting point 38-44 °C Boiling point 392 °C density 1.19 Fp 196 °C storage temp. Refrigerator s
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inquiryAppearance:off-white to white solid Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for Synthesis API and Research Transportation:As customer request Port:Qingda
Cas:101-68-8
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inquiryZibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi
Cas:101-68-8
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inquiryProduct Description Description & Specification Category Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug Standard Medical standard
Cas:101-68-8
Min.Order:1 Kilogram
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High quality MDI for sale,99% Methylene diphenyl diisocyanate for PU Foam , CAS no 101-68-8 with best price !!! . Application:High quality MDI for sale,99% Methylene diphenyl diisocyanate for PU Foam , CAS no 101-68-8 with best price !!! .
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Cas:101-68-8
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Cas:101-68-8
Min.Order:10 Milligram
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inquiry4,4'-Diphenylmethane diisocyanate Basic information
Cas:101-68-8
Min.Order:5 Gram
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inquiryQ1: Are you a manufacturer A: Yes, We are the manufacturer invovled in this line for more than 10 years. Q2: Do you have stock A: We understand most customers prefer stock, so we'll try to keep stock for most products. However, for some
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inquirydi(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
With copper In para-xylene at 220℃; under 2625.26 Torr; for 2h; Reagent/catalyst; Pressure; Temperature; Solvent; | 98.7% |
dimethyl 4,4'-methylenebis(1,4-phenylene)diurethane
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
With zinc diacetate; 1-((ethoxycarbonyl)methyl)-3-methylimidazolium tetrafluoroborate In neat (no solvent) at 25 - 230℃; for 0.25h; Catalytic behavior; Mechanism; Reagent/catalyst; Solvent; Inert atmosphere; | 96% |
N-trimethyl-butyltetrafluoroboric acid; zinc(II) oxide at 200 - 240℃; under 48.7549 Torr; for 2.66667h; | 84% |
With montmorillonite K-10 In decalin at 190℃; for 24h; | 40% |
With boron trichloride; triethylamine In benzene for 0.5h; Heating; | 87 % Chromat. |
bis(trichloromethyl) carbonate
4,4'-diamino diphenyl methane
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
at 130℃; for 2h; | 92% |
In ethyl acetate for 4h; Heating; | 90% |
(methylenedi-4,1-phenylene)bis-carbamic acid diethyl ester
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
With isocyanurate for 200h; Reflux; | 92% |
With boron trichloride; triethylamine In benzene for 0.5h; Heating; | 93 % Chromat. |
N,N'-(4,4'-methanediyl-di-phenyl)-bis-carbamic acid diphenyl ester
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
With DURANATE TPA-100 In 1,2-dichloro-benzene at 250℃; under 6000.6 Torr; for 200h; Inert atmosphere; | 86% |
at 130 - 220℃; under 3.75038 - 450.045 Torr; for 240h; Product distribution / selectivity; | 82.3% |
at 230℃; under 9.75098 Torr; Product distribution / selectivity; Industry scale; |
Conditions | Yield |
---|---|
With hydrogenchloride; N-benzyl-N,N,N-triethylammonium chloride In water; 1,2-dichloro-benzene at 40 - 160℃; for 5h; pH=2 - 3; | 85.8% |
With N,N-dimethyl-aniline; toluene | |
With 1,2-dichloro-benzene | |
In chlorobenzene at 90℃; under 7500.75 Torr; Inert atmosphere; |
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
With benzoyl chloride In dodecane at 210℃; for 2.5h; Solvent; | 85% |
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
at 160℃; for 0.5h; Glovebox; | 81% |
dibutyl diphenyl methane-4,4’-dicarbamate
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
tetrabutylphosphonium bis(trifluoromethanesulfonyl)imide at 180 - 240℃; under 48.7549 Torr; for 2.66667h; | 79% |
C25H36N4O2
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
In 1,2-dichloro-benzene at 185℃; under 760.051 Torr; for 1.5h; Product distribution / selectivity; | 79% |
phosgene
2,4'-diaminodiphenylmethane
2,2'-methylenedianiline
4,4'-diamino diphenyl methane
B
4,4′-methylenebis(phenylisocyanate)
C
2,4'-diisocyanatodiphenylmethane
D
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
In chlorobenzene at 0℃; Product distribution / selectivity; | A 35% B 0.2% C 5.5% D 44.1% |
phosgene
4,4'-Di(trimethylsilylamino)-diphenylmethan
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
In toluene |
phosgene
Dimethylsilanyl-{4-[4-(1,1,3,3-tetramethyl-disilazan-2-yl)-benzyl]-phenyl}-amine
di(4-isocyanatophenyl)methane
N,N'-(4,4'-methanediyl-di-phenyl)-bis-carbamic acid dipropyl ester
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
With boron trichloride; triethylamine In benzene for 0.5h; Heating; | 88 % Chromat. |
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 24.9℃; Equilibrium constant; |
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 24.9℃; Equilibrium constant; |
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 24.9℃; Equilibrium constant; |
A
methyl N-(2,4,6-trimethylphenyl)carbamate
B
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 24.9℃; Equilibrium constant; |
A
methyl N-(4-chloro-3-metyhoxyphenyl)carbamate
B
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 24.9℃; Equilibrium constant; |
phosgene
formaldehyd
B
4,4′-methylenebis(phenylisocyanate)
C
2,4'-diisocyanatodiphenylmethane
D
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
Stage #1: formaldehyd; aniline; hydrogenchloride In water at 40 - 100℃; for 13h; Heating / reflux; Stage #2: phosgene In chlorobenzene at 100 - 210℃; for 2h; Product distribution / selectivity; |
dimethyl 4,4'-methylenebis(1,4-phenylene)diurethane
A
[4-(4-Isocyanato-benzyl)-phenyl]-carbamic acid methyl ester
B
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
With montmorillonite K-10 In decalin at 190℃; for 5h; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H2SO4, (NH4)2SO4 2: toluene View Scheme |
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
Purification / work up; |
phosgene
2,4'-diaminodiphenylmethane
2,2'-methylenedianiline
4,4'-diamino diphenyl methane
A
4,4′-methylenebis(phenylisocyanate)
B
2,4'-diisocyanatodiphenylmethane
C
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
In chlorobenzene at 0℃; Product distribution / selectivity; Heating / reflux; | |
In chlorobenzene at 0℃; Product distribution / selectivity; Industry scale; |
N,N'-(4,4'-methanediyl-diphenyl)-biscarbamic acid bis(2,4-di-tert-amylphenyl) ester
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
at 210℃; under 0.750075 Torr; for 11h; Product distribution / selectivity; | |
at 260℃; under 11.2511 Torr; Industry scale; |
N,N'-(4,4'-methanediyl-di-phenyl)-bis-carbamic acid diisopentyl ester
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
With 2,4-di-tert-amylphenol; dibutyltin dilaurate at 220℃; under 9.75098 Torr; for 15h; Product distribution / selectivity; | |
With dibutyltin dilaurate at 270℃; under 9.75098 Torr; Industry scale; | |
dibutyltin dilaurate at 170 - 270℃; under 9.75098 Torr; |
phosgene
2,2'-methylenedianiline
4,4'-diamino diphenyl methane
A
4,4′-methylenebis(phenylisocyanate)
B
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
In chlorobenzene Heating; |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 4-t-amylphenol / 80 °C / Industry scale 2: 200 °C / 60.01 Torr / Industry scale 3: sulfuric acid / nitrobenzene / 10 h / 100 °C / Industry scale 4: 260 °C / 11.25 Torr / Industry scale View Scheme | |
Multi-step reaction with 4 steps 1: 4-t-amylphenol / 80 °C / Industry scale 2: 190 °C / 375.04 Torr / Industry scale 3: dibutyltin dilaurate / 250 °C / 375.04 Torr / Industry scale 4: 260 °C / 11.25 Torr / Industry scale View Scheme | |
Multi-step reaction with 4 steps 1: 4-t-amylphenol / 80 °C / Industry scale 2: 220 °C / 187.52 Torr / Industry scale 3: sulfuric acid / nitrobenzene / 15 h / 100 °C / Industry scale 4: 260 °C / 7.5 Torr / Industry scale View Scheme |
methanol
di(4-isocyanatophenyl)methane
dimethyl 4,4'-methylenebis(1,4-phenylene)diurethane
Conditions | Yield |
---|---|
for 4h; Heating; | 100% |
for 3h; | 96% |
ethanol
di(4-isocyanatophenyl)methane
(methylenedi-4,1-phenylene)bis-carbamic acid diethyl ester
Conditions | Yield |
---|---|
With MoCl2O2(dmf)2 In dichloromethane at 20℃; for 1h; Inert atmosphere; | 100% |
In tetrahydrofuran at 20℃; for 2h; | 94% |
di(4-isocyanatophenyl)methane
tert-butyl alcohol
O,O'-di-tert-butyl 4,4'-methylenebis(4,1-phenylene)dicarbamate
Conditions | Yield |
---|---|
With MoCl2O2(dmf)2 In dichloromethane at 20℃; for 1h; Inert atmosphere; | 100% |
In toluene at 85℃; for 3h; Inert atmosphere; | 96% |
In toluene at 85℃; for 3h; Inert atmosphere; | 96% |
di(4-isocyanatophenyl)methane
butan-1-ol
dibutyl diphenyl methane-4,4’-dicarbamate
Conditions | Yield |
---|---|
for 4h; Heating; | 100% |
In tetrahydrofuran at 20℃; for 2h; | 84% |
N,N-dibutyl amino-2 ethanol
di(4-isocyanatophenyl)methane
4,4'-methylenebis(phenyl-carbamic acid 2-[bis-butyl-amino]-ethyl ester)
Conditions | Yield |
---|---|
In tetrahydrofuran for 12h; Heating / reflux; | 99% |
(4R,5R)-1,3-dioxolane-4,5-dicarbohydrazide
di(4-isocyanatophenyl)methane
(4R,5R,25R,26R)-tetra-(hydrazinecarboxamide)cyclophane
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; for 24h; | 99% |
(2R,3R)-1,4-dioxaspiro[4.5]decane-2,3-dicarbohydrazide
di(4-isocyanatophenyl)methane
(4R,5R,25R,26R)-tetra-(hydrazinecarboxamide)cyclophane
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; for 24h; | 99% |
Conditions | Yield |
---|---|
With triethylamine In chloroform; toluene for 2h; Reflux; | 99% |
di(4-isocyanatophenyl)methane
diphenylmethane-4,4'-bis-carbamic acid chloride
Conditions | Yield |
---|---|
With hydrogenchloride In chlorobenzene at 30℃; | 99% |
1,1-dimethylhydrazine
di(4-isocyanatophenyl)methane
4,4'-bis(diimethylamino-urea)diphenylmethane
Conditions | Yield |
---|---|
In benzene 0-5 deg C, then 1 h at 20-25 deg C; | 98% |
di(4-isocyanatophenyl)methane
12-[4-(12-hydroxydodecyloxy)phenoxy]dodecan-1-ol
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 100℃; for 20h; Polymerization; | 98% |
di(4-isocyanatophenyl)methane
cytisine
N,N'-[methylene-bis(4,1-phenylene)]dicytisinecarboxamide
Conditions | Yield |
---|---|
In benzene at 80℃; | 98% |
Conditions | Yield |
---|---|
In toluene at 20 - 90℃; for 4h; Inert atmosphere; | 98% |
In toluene at 0℃; for 3.66667h; Inert atmosphere; Reflux; | 96% |
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
With hydrogen bromide In chlorobenzene at 30℃; | 98% |
Conditions | Yield |
---|---|
dibutyltin(II) dilaurate In n-heptane at 50℃; for 4.46667h; | 97.2% |
di(4-isocyanatophenyl)methane
6-[4-(6-hydroxy-hexyloxy)-phenoxy]-hexan-1-ol
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 100℃; for 20h; Polymerization; | 97% |
N-methyl-1,1,2,2,3,3,4,4-nonafluoro-N-(2-hydroxyethyl)butane-1-sulphonamide
di(4-isocyanatophenyl)methane
C22H18F9N3O5S
Conditions | Yield |
---|---|
dibutyltin(II) dilaurate In n-heptane at 45℃; for 2.53333h; Product distribution / selectivity; | 97% |
dibutyltin(II) dilaurate In n-heptane; toluene at 45℃; for 2.25 - 2.5h; | |
dibutyltin(II) dilaurate In toluene at 20 - 45℃; for 2.5h; | |
dibutyltin(II) dilaurate In HFE-7100 (C4F90CH3) at 45℃; for 2.5h; | |
dibutyltin(II) dilaurate In Petroleum ether at 45℃; for 2.5h; |
Conditions | Yield |
---|---|
Stage #1: n-Octylamine; di(4-isocyanatophenyl)methane In 1,4-dioxane at 40℃; for 2.5h; Stage #2: With sulfuric acid In 1,4-dioxane at 40℃; for 3.5h; | 96.4% |
1,1-Dimethyl-2-trimethylsilanyloxy-ethylamine
di(4-isocyanatophenyl)methane
(2-Isocyanato-2-methyl-propoxy)-trimethyl-silane
Conditions | Yield |
---|---|
at 200℃; | 96% |
Conditions | Yield |
---|---|
at 20℃; for 0.5h; | 96% |
N-Methyldiethanolamine
4,4'-(1,1,1,3,3,3-hexafluoroisopropylidene)diphthalic anhydride
di(4-isocyanatophenyl)methane
polymer, product of diol-diisocyanate condensation followed by polycondensation with dianhydride and heating; monomer(s): 4,4\-methylenebis(phenyl isocyanate); N-methyldiethanolamine; 4,4\-(hexafluoroisopropylidene)bis(phthalic anhydride)
Conditions | Yield |
---|---|
Stage #1: N-Methyldiethanolamine; di(4-isocyanatophenyl)methane In N,N-dimethyl-formamide at 20℃; for 1h; Stage #2: 4,4'-(1,1,1,3,3,3-hexafluoroisopropylidene)diphthalic anhydride In N,N-dimethyl-formamide at 60 - 80℃; Stage #3: for 15h; Heating; vacuum; | 96% |
Conditions | Yield |
---|---|
Stage #1: propargyl alcohol With dibutyltin dilaurate In N,N-dimethyl-formamide at 20℃; for 0.166667h; Stage #2: di(4-isocyanatophenyl)methane In N,N-dimethyl-formamide for 6h; | 95% |
With triethylamine In tetrahydrofuran at 20℃; for 24h; Solvent; | 73% |
In benzene | |
With propylene glycol methyl ether acetate at 50 - 60℃; for 5.83333h; |
2-hydroxyethylhydrazine
di(4-isocyanatophenyl)methane
p,p'-diphenylmethanedi[2-(β-hydroxyethyl)-4-semicarbazide]
Conditions | Yield |
---|---|
In isopropyl alcohol at 10℃; Addition; | 95% |
Conditions | Yield |
---|---|
In benzene 0-5 deg C, then 1 h at 20-25 deg C; | 95% |
4-(trimethylsilyloxy)aniline
di(4-isocyanatophenyl)methane
4-<(trimethylsilyl)oxy>phenyl isocyanate
Conditions | Yield |
---|---|
at 200℃; | 95% |
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 100℃; for 20h; Polymerization; | 95% |
(S,S)-N,N'-dimethyl-1,2-diphenylethane-1,2-diamine
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
In dichloromethane at 20℃; | 95% |
Cu(N4{14}(2-))
di(4-isocyanatophenyl)methane
Conditions | Yield |
---|---|
In chloroform Kinetics; to soln. of Cu complex was added 4,4'-diphenylmethane diisocyanate, themixt. was stirred at 25°C for 48 h under N2; ppt. was filtered off, washed with benzene, chloroform, n-hexane, driedin vac., elem. anal.; | 95% |
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