4,4'-Oxybis(phenyl isocyanate)
- CAS No.
- 4128-73-8
- Chemical Name:
- 4,4'-Oxybis(phenyl isocyanate)
- Synonyms
- OXYBIS(4-PHENYL ISOCYANATE);4,4'-Oxybis(isocyanatobenzene);4,4'-Oxybis(phenyl isocyanate);4,4'-diisocyanatodiphenyl ether;1,1’-oxybis[4-isocyanato-benzen;4,4'-Bis(isocyanatophenyl)oxide;Oxybis(4-phenyl isocyanate),99%;Oxybis(1,4-phenylene)diisocyanate;Benzene, 1,1'-oxybis[4-isocyanato-;Oxybis(1,4-phenylene)bisisocyanate
- CBNumber:
- CB2772668
- Molecular Formula:
- C14H8N2O3
- Molecular Weight:
- 252.22
- MDL Number:
- MFCD00216648
- MOL File:
- 4128-73-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 64-68 °C(lit.) |
|---|---|
| Boiling point | 196 °C5 mm Hg(lit.) |
| Density | 1.2700 (rough estimate) |
| refractive index | 1.5910 (estimate) |
| solubility | Acetonitrile (Soluble) |
| form | Solid |
| color | White to Off-White |
| Stability | Moisture Sensitive |
| CAS DataBase Reference | 4128-73-8 |
| FDA UNII | FY74W1G2FI |
| EPA Substance Registry System | 4,4'-Diisocyanatodiphenyl ether (4128-73-8) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS06,GHS08 |
|---|---|
| Signal word | Danger |
| Hazard statements | H301-H312-H315-H317-H319-H330-H334-H335 |
| Precautionary statements | P260-P280-P284-P301+P310-P305+P351+P338-P310 |
| Hazard Codes | Xn,T+ |
| Risk Statements | 20/21/22-36/37/38-42/43-26-25-21 |
| Safety Statements | 23-26-36/37/39-45-36/37-28-22 |
| RIDADR | UN 2206 6.1/PG 3 |
| WGK Germany | 3 |
| TSCA | TSCA listed |
4,4'-Oxybis(phenyl isocyanate) price More Price(9)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Biosynth | FO00269 | 4,4'-Oxybis(phenyl isocyanate) | 4128-73-8 | 1g | $154.2 | 2026-06-04 | Buy |
| aablocks | AA003KB6 | 4,4'-Bis(isocyanatophenyl)oxide | 4128-73-8 | 100mg | $184 | 2026-05-28 | Buy |
| aablocks | AA003KB6 | 4,4'-Bis(isocyanatophenyl)oxide | 4128-73-8 | 250mg | $241 | 2026-05-28 | Buy |
| aablocks | AA003KB6 | 4,4'-Bis(isocyanatophenyl)oxide | 4128-73-8 | 500mg | $316 | 2026-05-28 | Buy |
| aablocks | AA003KB6 | 4,4'-Bis(isocyanatophenyl)oxide | 4128-73-8 | 2g | $513 | 2026-05-28 | Buy |
4,4'-Oxybis(phenyl isocyanate) Chemical Properties, Uses, Production
Chemical Properties
WHITE CRYSTALLINE SOLID
Uses
4,4'-Bis(isocyanatophenyl)oxide is a reagent used in the synthesis of lipid-conjugated Smac analogs with antitumor activity against human breast cancer cell lines.Environmental toxin on US EPA Toxic Release Inventory list (TRI) list.
Reactivity Profile
Isocyanates and thioisocyanates are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Polyurethanes are formed by the condensation reaction of diisocyanates with, for example, ethyl glycol.
4,4'-Oxybis(phenyl isocyanate) Preparation Products And Raw materials
Raw materials
Preparation Products
4,4'-Oxybis(phenyl isocyanate) Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Nanjing crow LuNing pharmaceutical technology co., LTD | 13382066392 | CHINA | 4851 | 58 | |
| Shaanxi Dideu Newmaterial Co., Ltd. | 029-63373950 17392216152 | 1035@dideu.com | China | 9991 | 58 |
| LGC Science (Shanghai) Ltd. | 17717235263 | offer.de@lgcgroup.com | China | 19036 | 58 |
| Shanghai Haohong Scientific Co., Ltd. | 400-8210725 4008210725 | malulu@leyan.com | China | 39319 | 58 |
| Hangzhou Bingochem Co., Ltd. | 0571-87658025 | sales@bingochem.com | China | 21532 | 58 |
| DAYANG CHEM (HANGZHOU) CO.,LTD | +86-88938639 +86-17705817739 | info@dycnchem.com | China | 53589 | 58 |
| HANGZHOU LEAP CHEM CO., LTD. | +86-571-87711850 +8619957148339 | market18@leapchem.com | China | 24569 | 58 |
