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4,4'-OXYBIS(PHENYL ISOCYANATE)

4,4'-OXYBIS(PHENYL ISOCYANATE) structure

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);1,1’-oxybis[4-isocyanato-benzen;4,4'-Bis(isocyanatophenyl)oxide;Oxybis(4-phenyl isocyanate),99%;4,4'-diisocyanatodiphenyl ether;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

Last updated:2023-05-15 10:43:58

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4,4'-OXYBIS(PHENYL ISOCYANATE) Properties

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

4,4'-OXYBIS(PHENYL ISOCYANATE) price More Price(3)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	B448770	4,4''-Bis(isocyanatophenyl)oxide	4128-73-8	100mg	$55	2021-12-16	Buy
TRC	B448770	4,4''-Bis(isocyanatophenyl)oxide	4128-73-8	250mg	$110	2021-12-16	Buy
American Custom Chemicals Corporation	CHM0138691	4,4'-OXYBIS(PHENYL ISOCYANATE) 96.00%	4128-73-8	5G	$886.4	2021-12-16	Buy

Product number	Packaging	Price	Buy
B448770	100mg	$55	Buy
B448770	250mg	$110	Buy
CHM0138691	5G	$886.4	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) synthesis

Synthesis of 4,4'-OXYBIS(PHENYL ISOCYANATE) from PHOSGENE and 4,4'-Oxydianiline

4,4'-OXYBIS(PHENYL ISOCYANATE) Preparation Products And Raw materials

Raw materials

Preparation Products

4,4'-OXYBIS(PHENYL ISOCYANATE) Suppliers

Global( 19)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
LEAP CHEM CO., LTD.	+86-852-30606658	market18@leapchem.com	China	24738	58
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696;	info@hanhongsci.com	China	42982	64
Jalor-Chem co.,LTD	0510-0510-86396359 13382276200	sales@jalor-chem.com	China	999	56
Nanjing crow LuNing pharmaceutical technology co., LTD	13382066392		CHINA	4880	58
BOC Sciences	--	info@bocsci.com	USA	0	65
TCI (Shanghai) Chemical Trading Co., Ltd.	021-61109150	sales@tcisct.com	China	31183	58
Shaanxi Dideu Newmaterial Co., Ltd.	029-63373950 15353716720	1052@dideu.com	China	10007	58
LGC Science (Shanghai) Ltd.	17717235263	cindy.yang@lgcgroup.com	China	11437	58
Wuxi Shengzhu Biology Co.,Ltd	13382276200	allensun113@126.com	China	3236	58
Hangzhou Bingochem Co., Ltd.	0571-87632989	sales@bingochem.com	China	21673	58

Supplier	Advantage
LEAP CHEM CO., LTD.	58
Shanghai Hanhong Scientific Co.,Ltd.	64
Jalor-Chem co.,LTD	56
Nanjing crow LuNing pharmaceutical technology co., LTD	58
BOC Sciences	65
TCI (Shanghai) Chemical Trading Co., Ltd.	58
Shaanxi Dideu Newmaterial Co., Ltd.	58
LGC Science (Shanghai) Ltd.	58
Wuxi Shengzhu Biology Co.,Ltd	58
Hangzhou Bingochem Co., Ltd.	58

4128-73-8(4,4'-OXYBIS(PHENYL ISOCYANATE))Related Search:

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OXYBIS(4-PHENYL ISOCYANATE) 1,1’-oxybis[4-isocyanato-benzen 4,4'-OXYBIS(PHENYL ISOCYANATE) 4,4'-Diisocyanato[1,1'-oxybisbenzene] 4,4'-Oxybis(isocyanatobenzene) Oxybis(1,4-phenylene)bisisocyanate Oxybis(1,4-phenylene)diisocyanate Oxybis(4-phenyl isocyanate),99% 1-isocyanato-4-(4-isocyanatophenoxy)benzene 4,4'-Bis(isocyanatophenyl)oxide Benzene, 1,1'-oxybis[4-isocyanato- 4,4'-diisocyanatodiphenyl ether 4128-73-8 C14H8N2O3 OC6H4NCO2 Building Blocks Organic Building Blocks Nitrogen Compounds Isocyanates Isocyanates Nitrogen Compounds Organic Building Blocks