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ChemicalBook > Product Catalogue >Catalyst and Auxiliary >Fluorescent brightener >Optical brightener OB-1

Optical brightener OB-1

Optical brightener OB-1 Structure
  • ₹2300 - ₹6137.78
  • Product name: Optical brightener OB-1
  • CAS: 1533-45-5
  • MF: C28H18N2O2
  • MW: 414.45
  • EINECS:216-245-3
  • MDL Number:MFCD00022846
  • Synonyms:4,4'-BIS(2-BENZOXAZOLYL)STILBENE;2,2'-(1,2-ETHENEDIYLDI-4,1-PHENYLENE)BISBENZOXAZOLE;2,2'-(vinylenedi-p-phenylene)bisbenzoxazole;2,2’-(1,2-ethenediyldi-4,1-phenylene)bis-benzoxazol ;OB-C;Fluorescent Brightener OB-1 C.I. 393;1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene;2,2'-(Ethene-1,2-diyldibenzene-4,1-diyl)bis(1,3-benzoxazole), 4,4'-Bis(benzo[d]oxazol-2-yl)stilbene
Price2 Properties Safety Information Description
2 prices
Selected condition：

Brand

  • Sigma-Aldrich(India)
  • TCI Chemicals (India)

Package

  • 25G
  • 50G
  • ManufacturerSigma-Aldrich(India)
  • Product number368598
  • Product description4,4′-Bis(2-benzoxazolyl)stilbene 97%
  • Packaging50G
  • Price₹6137.78
  • Updated2022-06-14
  • Buy
  • ManufacturerTCI Chemicals (India)
  • Product numberB2729
  • Product description4,4'-Bis(2-benzoxazolyl)stilbene
  • Packaging25G
  • Price₹2300
  • Updated2022-05-26
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
Sigma-Aldrich(India) 368598 4,4′-Bis(2-benzoxazolyl)stilbene 97% 50G ₹6137.78 2022-06-14 Buy
TCI Chemicals (India) B2729 4,4'-Bis(2-benzoxazolyl)stilbene 25G ₹2300 2022-05-26 Buy

Properties

Melting point :>300 °C(lit.)
Boiling point :533.34°C (rough estimate)
Density :1.2151 (rough estimate)
vapor pressure :0Pa at 25℃
refractive index :1.5800 (estimate)
storage temp. :Sealed in dry,Room Temperature
solubility :DMSO (Slightly, Heated)
form :Solid
pka :1.45±0.10(Predicted)
color :Yellow
Water Solubility :10μg/L at 25℃
Stability :Stable. Incompatible with strong oxidizing agents.
InChIKey :ORACIQIJMCYPHQ-KTKRTIGZSA-N
LogP :5.499 at 25℃
CAS DataBase Reference :1533-45-5(CAS DataBase Reference)
EPA Substance Registry System :Benzoxazole, 2,2'-(1,2-ethenediyldi-4,1-phenylene)bis- (1533-45-5)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
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
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning GHS hazard pictograms
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
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.

Description

4,4′-Bis(2-benzoxazolyl)stilbene (BBS) is suitable for use in the preparation of poly(propylene) (PP) films containing different concentrations of BBS.BBS may be employed as a viscosity-sensitive fluorophore to investigate the curing parameters in fabrication of UV-cured automotive organic protective coatings.BBS may be used in the preparation of polymeric film sensors based on excimer luminescence and responsive to both mechanical and temperature stress, by its dispersion into a thermoplastic aliphatic biodegradable polyester [poly(1,4-butylene succinate).

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