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ChemicalBook >> CAS DataBase List >> Optical brightener OB-1

Optical brightener OB-1

Optical brightener OB-1 price.
  • $7 - $4543.44
  • Product name: Optical brightener OB-1
  • CAS: 1533-45-5
  • MF: C28H18N2O2
  • MW: 414.45
  • EINECS:216-245-3
  • MDL Number:MFCD00022846
  • Synonyms: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;4,4'-Bis(1,3-benzoxazol-2-yl)stilbene;-Bis(2-benzoxazolyl)stilbene
72 prices
Selected condition：
Brand
  • aablocks
  • AHH
  • AK Scientific
  • Ambeed
  • American Custom Chemicals Corporation
  • Apolloscientific
  • Arctom
  • BLDpharm
  • Chemenu
  • Chem-Impex
  • ChemScene
  • Crysdot
  • Frontier Specialty Chemicals
  • Matrix Scientific
  • Sigma-Aldrich
  • SynQuest Laboratories
  • Synthonix
  • TCI Chemical
  • Tocris
  • TRC
Package
  • 5g
  • 10
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  • 10g
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  • 25.00g
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  • 100.00g
  • 100g
  • 500g
  • 1kg
  • 1000g
  • 100 μg
  • Manufactureraablocks
  • Product numberAA003B02
  • Product description1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene ≥97%
  • Packaging5g
  • Price$10
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003B02
  • Product description1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene ≥97%
  • Packaging10g
  • Price$11
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003B02
  • Product description1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene ≥97%
  • Packaging25g
  • Price$12
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003B02
  • Product description1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene 97%
  • Packaging100g
  • Price$15
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003B02
  • Product description1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene 97%
  • Packaging500g
  • Price$53
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003B02
  • Product description1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene 97%
  • Packaging1000g
  • Price$89
  • Updated2026-05-28
  • Buy
  • ManufacturerAHH
  • Product numberMT-11768
  • Product description2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole 97%
  • Packaging1000g
  • Price$398
  • Updated2021-12-16
  • Buy
  • ManufacturerAHH
  • Product numberMT-11768
  • Product description2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole 97%
  • Packaging1000g
  • Price$398
  • Updated2026-05-25
  • Buy
  • ManufacturerAHH
  • Product numberMT-11768
  • Product description2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole 97%
  • Packaging1000g
  • Price$398
  • Updated2026-05-26
  • Buy
  • ManufacturerAK Scientific
  • Product numberO251
  • Product descriptionFluorescentbrightenerOB-1
  • Packaging500g
  • Price$240
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberO251
  • Product descriptionFluorescent brightener OB-1 98%
  • Packaging100g
  • Price$55
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ62847
  • Product descriptionFluorescent brightener OB-1 95%
  • Packaging100g
  • Price$41
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberO251
  • Product descriptionFluorescent brightener OB-1 98%
  • Packaging5g
  • Price$16
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ62847
  • Product descriptionFluorescent brightener OB-1 95%
  • Packaging25g
  • Price$17
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberO251
  • Product descriptionFluorescent brightener OB-1 98%
  • Packaging25g
  • Price$23
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ62847
  • Product descriptionFluorescent brightener OB-1 95%
  • Packaging5g
  • Price$12
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA003B02 1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene ≥97% 5g $10 2026-05-28 Buy
aablocks AA003B02 1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene ≥97% 10g $11 2026-05-28 Buy
aablocks AA003B02 1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene ≥97% 25g $12 2026-05-28 Buy
aablocks AA003B02 1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene 97% 100g $15 2026-05-28 Buy
aablocks AA003B02 1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene 97% 500g $53 2026-05-28 Buy
aablocks AA003B02 1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene 97% 1000g $89 2026-05-28 Buy
AHH MT-11768 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole 97% 1000g $398 2021-12-16 Buy
AHH MT-11768 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole 97% 1000g $398 2026-05-25 Buy
AHH MT-11768 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole 97% 1000g $398 2026-05-26 Buy
AK Scientific O251 FluorescentbrightenerOB-1 500g $240 2021-12-16 Buy
AK Scientific O251 Fluorescent brightener OB-1 98% 100g $55 2026-06-04 Buy
AK Scientific J62847 Fluorescent brightener OB-1 95% 100g $41 2026-06-04 Buy
AK Scientific O251 Fluorescent brightener OB-1 98% 5g $16 2026-06-04 Buy
AK Scientific J62847 Fluorescent brightener OB-1 95% 25g $17 2026-06-04 Buy
AK Scientific O251 Fluorescent brightener OB-1 98% 25g $23 2026-06-04 Buy
AK Scientific J62847 Fluorescent brightener OB-1 95% 5g $12 2026-06-04 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
biological source :goat
Water Solubility :10μg/L at 25℃
λmax :372 nm
Stability :Stable. Incompatible with strong oxidizing agents.
Cosmetics Ingredients Functions :COLORANT
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-KTKRTIGZSA-N
SMILES :c1ccc2oc(nc2c1)-c3ccc(\C=C\c4ccc(cc4)-c5nc6ccccc6o5)cc3
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): Exclamation Mark (GHS07)
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 P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
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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