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2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene

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Company Name: career henan chemical co
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Products Intro: Product Name:2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
CAS:7128-64-5
Purity:99% Package:1KG;20USD
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Tel: +86-0086-574-83851061 +86-13003762012
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Products Intro: Product Name:Optical brightener OB
CAS:7128-64-5
Purity:1 Package:25kgs per carton Remarks:DYES
Company Name: Qingdao Truelight functional Material Technology Co., Ltd.
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Products Intro: Product Name:OPTICAL BRIGHTENER TRUELICHT OB
CAS:7128-64-5
Purity:98% Package:1KG;USD
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Products Intro: Product Name:Optical brightener Ob
CAS:7128-64-5
Purity:99.9% Package:1Kg;0.00;USD|25Kg;0.00;USD|100Kg;0.00;USD
Company Name: Capot Chemical Co.,Ltd.
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Products Intro: Product Name:2,5-Bis(5-tert-butylbenzooxazol-2-yl)thiophene
CAS:7128-64-5
Purity:98% Min. Package:1G;1KG;100KG

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene manufacturers

  • Optical brightener Ob
  • Optical brightener Ob pictures
  • $0.00 / 1Kg
  • 2024-03-13
  • CAS:7128-64-5
  • Min. Order: 1Kg
  • Purity: 99.9%
  • Supply Ability: 20 tons

Related articles
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Basic information
Description Sources
Product Name:2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
Synonyms:bbot150;Benzoxazole, 2,2'-(2,5-thiophenediyl)bis(5-tert-butyl-;Benzoxazole, 2,2'-(2,5-thiophenediyl)bis*5-(1,1-dimethylethyl)-;Benzoxazole, 2,2'-(2,5-thiophenediyl)bis[5-(1,1-dimethylethyl)-;LABOTEST-BB LT00053574;CI FLUORESCENT BRIGHTENER 362;DERIVATIVE OF STILBENE DISULFONIC ACID;BBOT
CAS:7128-64-5
MF:C26H26N2O2S
MW:430.56
EINECS:230-426-4
Product Categories:brightener;pigments;Electroluminescence;Functional Materials;Organics;Industrial/Fine Chemicals
Mol File:7128-64-5.mol
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Structure
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Chemical Properties
Melting point 199-201 °C(lit.)
Boiling point 531.2±45.0 °C(Predicted)
density 1.26
refractive index 1.6360 (estimate)
Fp >350°C
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility toluene: soluble50mg/mL
pka3.03±0.10(Predicted)
form powder
color Pale Green to Yellow
Water Solubility Soluble in acetone and toluene. Insoluble in water.
λmax373nm(EtOH)(lit.)
Merck 14,1014
BRN 631803
Stability:Stable. Incompatible with strong oxidizing agents.
InChIKeyAIXZBGVLNVRQSS-UHFFFAOYSA-N
LogP8.6 at 25℃
CAS DataBase Reference7128-64-5(CAS DataBase Reference)
NIST Chemistry ReferenceBenzoxazole, 2,2'-(2,5-thiophenediyl)bis[5-(1,1-dimethylethyl)-(7128-64-5)
EPA Substance Registry System2,2'-(2,5-Thiophenediyl)bis[5-tert-butylbenzoxazole] (7128-64-5)
Safety Information
Risk Statements 36/37/38
Safety Statements 24/25
WGK Germany 1
RTECS DM4888332
TSCA Yes
HS Code 29349990
ToxicityLD50 orl-rat: >10 g/kg MVCRB3 2,193,1973
MSDS Information
ProviderLanguage
Fluorescent Brightener 184 English
SigmaAldrich English
ACROS English
ALFA English
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Usage And Synthesis
Description2,5-Bis (5-tert-butyl-2-benzoxazolyl) thiophene (also known as fluorescent brightener 184)1 is used as an optical brightener, which converts UV light into visible light. It is also used as a fluorescent brightener for thermoplastic resins of polyvinyl chloride, acrylic resin, polyester fiber, thermoplastic plastic, ABS, cellulose acetate fiber, paint, coating and printing ink. It is also useful in detecting the presence of thin-film electrical contact lubricants2-4.
Sources
  1. https://pubchem.ncbi.nlm.nih.gov/compound/bbot#section=Top
  2. https://www.alfa.com/zh-cn/catalog/A14928/
  3. http://www.xcolorpigment.com/FLUORESCENT-BRIGHTENER-OB.html
  4. http://www.offerchems.com/products/catalyst-auxiliary/fluorescent-brightener-184-cas-7128-64-5/
Chemical Propertieslight yellow-green crystals
Uses2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene is used as an optical brightener which converts UV light into visible light. It is also used as a fluorescent brightener for thermoplastic resins of polyvinyl chloride, acrylic resin, polyester fiber, paint, coating and printing ink. It is also useful in detecting the presence of thin-film electrical contact lubricants.
UsesOptical brightener additive in polymers, fibers, films, inks, laquers, and paints. In liquid scintillators.
Flammability and ExplosibilityNot classified
Safety ProfileLow toxicity by ingestion. Whenheated to decomposition it emits toxic vapors of NOx andSOx.
Properties and Applications

TEST ITEMS

SPECIFICATION

APPEARANCE

LIGHT YELLOW OR MILK WHITE POWDER

SHADE

LIGHT YELLOWISH

METLING POINT

201-202 ° C

PURITY

99% min

FINENESS

300 mesh min

SOLUBILITY

hardly soluble in water,but soluble in paraffin, mineral oils and ordinary organic solvents.

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Preparation Products And Raw materials
Raw materialsDichloromethane-->Thionyl chloride-->Chloroform-->Sodium Methoxide-->Glyoxal-->Adipic acid-->2,5-Thiophenedicarboxylic acid-->2-Amino-4-tert-butylphenol
Tag:2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene(7128-64-5) Related Product Information
tert-Butyldimethylsilyl chloride butyl rubber Fluorescent brightener 85 Fluorescent brightener 71 Butyl acrylate C.I. 482200 BISMERTHIAZOL Fluorescent Brightener 28 tert-Butyl hydroperoxide 2-Butoxyethanol Buprofezin Methyl 4-tert-butylbenzoate Thiophene 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole 2,1,3-Benzothiadiazole tert-Butyl methyl ether FLUORESCENT BRIGHTENER 28 Butyl acetate