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ChemicalBook >> CAS DataBase List >> 4,4'-Diphenylmethane diisocyanate

4,4'-Diphenylmethane diisocyanate

4,4'-Diphenylmethane diisocyanate price.
  • $13 - $305
  • Product name: 4,4'-Diphenylmethane diisocyanate
  • CAS: 101-68-8
  • MF: C15H10N2O2
  • MW: 250.25
  • EINECS:202-966-0
  • MDL Number:MFCD00036131
  • Synonyms:para,para’-diphenylmethanediisocyanate ;para,para’-methylenebis(phenylisocyanate) ;Rubinate 44;Rubinate LF-168;rubinate44 ;METHYLENEBIS(P-PHENYL ISOCYANATE);METHYLENEDIPHENYL 4,4'-DIISOCYANATE;METHYLENEDI-P-PHENYL DIISOCYANATE
15 prices
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  • Alfa Aesar
  • Frontier Specialty Chemicals
  • Sigma-Aldrich
  • TCI Chemical
  • TRC
  • Usbiological
Package
  • 100mg
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  • 50g
  • 100mL
  • 100g
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  • 500g
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  • ManufacturerAlfa Aesar
  • Product numberL15740
  • Product description4,4'-Methylenebis(phenyl isocyanate), 98%
  • Packaging25g
  • Price$29.2
  • Updated2024-03-01
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberL15740
  • Product description4,4'-Methylenebis(phenyl isocyanate), 98%
  • Packaging100g
  • Price$42.8
  • Updated2024-03-01
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberL15740
  • Product description4,4'-Methylenebis(phenyl isocyanate), 98%
  • Packaging500g
  • Price$76.6
  • Updated2024-03-01
  • Buy
  • ManufacturerFrontier Specialty Chemicals
  • Product numberJK122268
  • Product description4,4′-Methylenebis(phenyl isocyanate) 98%
  • Packaging25g
  • Price$13
  • Updated2021-12-16
  • Buy
  • ManufacturerFrontier Specialty Chemicals
  • Product numberJK122268
  • Product description4,4′-Methylenebis(phenyl isocyanate) 98%
  • Packaging100g
  • Price$18
  • Updated2021-12-16
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number8.20797
  • Product descriptionDiphenylmethane 4,4′-diisocyanate (mixture of di-and triisocyanates) for synthesis
  • Packaging100mL
  • Price$46.4
  • Updated2024-03-01
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number256439
  • Product description4,4′-Methylenebis(phenyl isocyanate) 98%
  • Packaging50g
  • Price$55.2
  • Updated2024-03-01
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number256439
  • Product description4,4′-Methylenebis(phenyl isocyanate) 98%
  • Packaging500g
  • Price$82.6
  • Updated2024-03-01
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number8.20797
  • Product descriptionDiphenylmethane 4,4′-diisocyanate (mixture of di-and triisocyanates) for synthesis
  • Packaging500mL
  • Price$83.3
  • Updated2024-03-01
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number33428
  • Product description4,4′-MDI analyticalstandard
  • Packaging100mg
  • Price$84.8
  • Updated2024-03-01
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number256439
  • Product description4,4′-Methylenebis(phenyl isocyanate) 98%
  • Packaging5kg
  • Price$234.4
  • Updated2024-03-01
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  • ManufacturerTCI Chemical
  • Product numberD0897
  • Product descriptionMethylenediphenyl 4,4'-Diisocyanate >97.0%(T)
  • Packaging25g
  • Price$27
  • Updated2024-03-01
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  • ManufacturerTCI Chemical
  • Product numberD0897
  • Product descriptionMethylenediphenyl 4,4'-Diisocyanate >97.0%(T)
  • Packaging500g
  • Price$55
  • Updated2024-03-01
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  • ManufacturerTRC
  • Product numberM227380
  • Product description4,4′-Methylenebis(phenyl isocyanate)
  • Packaging100g
  • Price$70
  • Updated2021-12-16
  • Buy
  • ManufacturerUsbiological
  • Product number283425
  • Product descriptionMethylenedi-p-phenyl diisocyanate
  • Packaging25g
  • Price$305
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
Alfa Aesar L15740 4,4'-Methylenebis(phenyl isocyanate), 98% 25g $29.2 2024-03-01 Buy
Alfa Aesar L15740 4,4'-Methylenebis(phenyl isocyanate), 98% 100g $42.8 2024-03-01 Buy
Alfa Aesar L15740 4,4'-Methylenebis(phenyl isocyanate), 98% 500g $76.6 2024-03-01 Buy
Frontier Specialty Chemicals JK122268 4,4′-Methylenebis(phenyl isocyanate) 98% 25g $13 2021-12-16 Buy
Frontier Specialty Chemicals JK122268 4,4′-Methylenebis(phenyl isocyanate) 98% 100g $18 2021-12-16 Buy
Sigma-Aldrich 8.20797 Diphenylmethane 4,4′-diisocyanate (mixture of di-and triisocyanates) for synthesis 100mL $46.4 2024-03-01 Buy
Sigma-Aldrich 256439 4,4′-Methylenebis(phenyl isocyanate) 98% 50g $55.2 2024-03-01 Buy
Sigma-Aldrich 256439 4,4′-Methylenebis(phenyl isocyanate) 98% 500g $82.6 2024-03-01 Buy
Sigma-Aldrich 8.20797 Diphenylmethane 4,4′-diisocyanate (mixture of di-and triisocyanates) for synthesis 500mL $83.3 2024-03-01 Buy
Sigma-Aldrich 33428 4,4′-MDI analyticalstandard 100mg $84.8 2024-03-01 Buy
Sigma-Aldrich 256439 4,4′-Methylenebis(phenyl isocyanate) 98% 5kg $234.4 2024-03-01 Buy
TCI Chemical D0897 Methylenediphenyl 4,4'-Diisocyanate >97.0%(T) 25g $27 2024-03-01 Buy
TCI Chemical D0897 Methylenediphenyl 4,4'-Diisocyanate >97.0%(T) 500g $55 2024-03-01 Buy
TRC M227380 4,4′-Methylenebis(phenyl isocyanate) 100g $70 2021-12-16 Buy
Usbiological 283425 Methylenedi-p-phenyl diisocyanate 25g $305 2021-12-16 Buy

Properties

Melting point :38-44 °C
Boiling point :392 °C
Density :1.19
vapor pressure :0.066 hPa (20 °C)
refractive index :1.5906 (estimate)
Flash point :196 °C
storage temp. :-20°C
solubility :2g/l (decomposition)
Specific Gravity :1.180
color :White to Almost white
explosive limit :0.4%(V)
Water Solubility :decomposes
FreezingPoint :37℃
Sensitive :Moisture Sensitive/Lachrymatory
BRN :797662
Exposure limits :TLV-TWA 0.051 mg/m3 (0.005 ppm) (ACGIH and NIOSH); ceiling (air) 0.204 mg/m3 (0.02 ppm)/10 min (NIOSH and OSHA); IDLH 102 mg/m3 (10 ppm).
Dielectric constant :10.0（Ambient）
Stability :Stable. Combustible. Incompatible with strong oxidizing agents. Reacts violently with alcohols.
CAS DataBase Reference :101-68-8(CAS DataBase Reference)
IARC :3 (Vol. 19, Sup 7, 71) 1999
NIST Chemistry Reference :Benzene, 1,1'-methylenebis[4-isocyanato-(101-68-8)
EPA Substance Registry System :

Safety Information

Symbol(GHS): GHS hazard pictogramsGHS hazard pictograms
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning GHS hazard pictograms P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning GHS hazard pictograms P261, P271, P304+P340, P312
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitisation, respiratory Category 1 Danger GHS hazard pictograms P261, P285, P304+P341, P342+P311,P501
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning GHS hazard pictograms
H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
Precautionary statements:
P202 Do not handle until all safety precautions have been read and understood.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313 IF exposed or concerned: Get medical advice/attention.

Description

4,4'-Methylenebis(phenyl isocyanate) acts as a monomer in the production of polyurethane. The rigid polyurethane foams are good thermal insulators, which find applications in all freezers and refrigerators, as well as in buildings. It is also used as an industrial strength adhesive, which is available to end consumers as various high-strength bottled glue preparations.

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