CAS 4128-73-8|4,4'-oxybis(phenyl isocyanate)

Introduction：Basic information about CAS 4128-73-8|4,4'-oxybis(phenyl isocyanate), including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Table of Contents

1. Names
2. Chemical & Physical Properties
3. Safety Information
4. Customs
5. Articles1
6. Synonyms

Common Name	4,4'-oxybis(phenyl isocyanate)
CAS Number	4128-73-8	Molecular Weight	252.22500
Density	1.2700 (rough estimate)	Boiling Point	196ºC5 mm Hg(lit.)
Molecular Formula	C₁₄H₈N₂O₃	Melting Point	64-68ºC(lit.)
MSDS	ChineseUSA	Flash Point	/
Symbol	GHS06, GHS08	Signal Word	Danger

Names

Name	1-isocyanato-4-(4-isocyanatophenoxy)benzene
Synonym	More Synonyms

Chemical & Physical Properties

Density	1.2700 (rough estimate)
Boiling Point	196ºC5 mm Hg(lit.)
Melting Point	64-68ºC(lit.)
Molecular Formula	C₁₄H₈N₂O₃
Molecular Weight	252.22500
Exact Mass	252.05300
PSA	68.09000
LogP	3.41350
Index of Refraction	1.5910 (estimate)
InChIKey	KDLIYVDINLSKGR-UHFFFAOYSA-N
SMILES	O=C=Nc1ccc(Oc2ccc(N=C=O)cc2)cc1

Safety Information

Symbol	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
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn
Risk Phrases	20/21/22-36/37/38
Safety Phrases	23-26-36/37/39
RIDADR	UN 2206 6.1/PG 3
WGK Germany	3
HS Code	2929109000

Customs

HS Code	2929109000
Summary	2929109000. other isocyanates. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Articles1

Synthesis of novel chiral tetra-(hydrazinecarboxamide) cyclophane macrocycles. Nour HF, et al.

Tetrahedron Lett. 54(32) , 4139-42, (2013)

Synonyms

4,4'-Diisocyanatodiphenyl oxide

4,4'-Diisocyanatodiphenyl ether

MFCD00216648

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