CAS No.1533-45-5,2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole Suppliers

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Basic Information

Molecular Structure:
CAS No.:	1533-45-5
Name:	2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole
Article Data:	14

Formula:	C₂₈H₁₈N₂O₂
Molecular Weight:	414.463
Synonyms:	Benzoxazole,2,2'-(vinylenedi-p-phenylene)bis- (7CI,8CI);2,2'-(Vinylenedi-p-phenylene)bisbenzoxazole;4,4'-Di(benzoxazol-2-yl)stilbene;C.I. 40674;Eastobrite OB 1;Fluorescent Brightener 393;OpticalBrightener 1;Uvitex OB-ONE;Optial Brightener OB-1;
EINECS:	216-245-3
Density:	1.39 g/cm3 (25ºC)
Melting Point:	357-359 °C(lit.)
Boiling Point:	566.8 °C at 760 mmHg
Flash Point:	285.1 °C
Solubility:	10μg/L at 25℃
Appearance:	solid
Hazard Symbols:	Xi
Risk Codes:	36/37/38
Safety:	26-37/39-24/25
PSA:	52.06000
LogP:	7.47340

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Chemistry

IUPAC Name: 2-[4-[(E)-2-[4-(1,3-benzoxazol-2-yl)phenyl]ethenyl]phenyl]-1,3-benzoxazole
Empirical Formula: C₂₈H₁₈N₂O₂
Molecular Weight: 414.4547g/mol
EINECS: 216-245-3
Structure of Benzoxazole,2,2'-(1,2-ethenediyldi-4,1-phenylene)bis- (CAS NO.1533-45-5):

Index of Refraction: 1.731
Molar Refractivity: 129.29 cm³
Molar Volume: 323.4 cm³
Polarizability: 51.25×10^-24cm³
Surface Tension: 57.9 dyne/cm
Density: 1.281 g/cm³
Flash Point: 285.1 °C
Enthalpy of Vaporization: 81.94 kJ/mol
Melting Point: >300 °C(lit.)
Boiling Point: 566.8 °C at 760 mmHg
Vapour Pressure: 2.79E-12 mmHg at 25°C
Product Categories: Industrial/Fine Chemicals;Stilbenes;Building Blocks;Heterocyclic Building Blocks;Oxazoles
Canonical SMILES: C1=CC=C2C(=C1)N=C(O2)C3=CC=C(C=C3)C=CC4=CC=C(C=C4)C5=NC6=CC=CC=C6O5
Isomeric SMILES: C1=CC=C2C(=C1)N=C(O2)C3=CC=C(C=C3)/C=C/C4=CC=C(C=C4)C5=NC6=CC=CC=C6O5
InChI: InChI=1S/C28H18N2O2/c1-3-7-25-23(5-1)29-27(31-25)21-15-11-19(12-16-21)9-10-20-13-17-22(18-14-20)28-30-24-6-2-4-8-26(24)32-28/h1-18H/b10-9+
InChIKey: ORACIQIJMCYPHQ-MDZDMXLPSA-N

Uses

Because Optical Brightener OB-1 (FBA 393) has strong fluorescence, it can not only improve the whiteness of the products but also can improve the brightness, so it can be used as disperse dyes in the chemical fiber, can be used like oil dissolving coloring agent in the plastics. Following is the usage:
1. Suitable for whitening and brightening polypropylene plastic, hard PVC, ABS, EVA, polystyrene, polycarbonate, etc.
2. Suitable for whitening chemical fibers, such as the polyester fiber, nylon fiber, polypropylene fiber and so on.
3. Suitable to be added into the conventional polymerization of polyester and nylon.
4. Especially suitable for whitening the plastics of elevated temperature compaction.

Safety Profile

Hazard Codes: Irritant Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39-24/25
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39:Wear suitable gloves and eye/face protection.
S24/25:Avoid contact with skin and eyes.
WGK Germany: 1

Specification

Benzoxazole,2,2'-(1,2-ethenediyldi-4,1-phenylene)bis- , its cas register number is 1533-45-5. It also can be called 2,2'-(Vinylenedi-4-phenylene)bis(benzoxazole) ; 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole ; 2,2'-(Vinylenedi-p-phenylene)bisbenzoxazole .