ChemicalBook--->CAS DataBase List--->7128-64-5

7128-64-5

7128-64-5 Structure

7128-64-5 Structure
IdentificationMore
[Name]

Fluorescent Brightener 184
[CAS]

7128-64-5
[Synonyms]

2,2'-(2,5-THIOPHENEDIYL) BIS [5-TERT-BUTYLBENZOXAZOLE]
2,5-BIS-2(5-TERT-BUTYL-BENZOXALYL)THIOPHENE
2,5-BIS(5-T-BUTYL-2-BENZOXAZOLYL)THIOPHENE
2,5-BIS-(5-T-BUTYLBENZOXAZOLYL-[2-YL])-THIOPHENE
2,5-BIS-(5-TERT-BUTYL-2-BENZOXAZOL-2-YL)THIOPHENE
2,5-BIS(5'-TERT-BUTYL-2-BENZOXAZOL-2-YL)THIOPHENE
2,5-BIS(5'-TERT-BUTYL-2'-BENZOXAZOLYL)THIOPHENE
2,5-BIS(5-TERT-BUTYL-2-BENZOXAZOLYL)THIOPHENE
2,5-BIS(5-TERT-BUTYL-BENZOXAZOL-2-YL)THIOPHENE
2,5-BIS(5-TERT-BUTYLBENZOXAZOYL)-2-THIOPHENE
2,5-DI(5-TERT-BUTYLBENZOXAZOL-2-YL)THIOPHENE
BBOT
CI FLUORESCENT BRIGHTENER 362
DERIVATIVE OF STILBENE DISULFONIC ACID
LABOTEST-BB LT00053574
TINOPAL CBS-X
TOSLAB 644820
UVITEX 2B
UVITEX OB
UVITEX(R) 2B
[EINECS(EC#)]

230-426-4
[Molecular Formula]

C26H26N2O2S
[MDL Number]

MFCD00005774
[Molecular Weight]

430.56
[MOL File]

7128-64-5.mol
Chemical PropertiesBack Directory
[Appearance]

light yellow-green crystals
[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
[form ]

powder
[pka]

3.03±0.10(Predicted)
[color ]

Pale Green to Yellow
[Stability:]

Stable. Incompatible with strong oxidizing agents.
[Water Solubility ]

Soluble in acetone and toluene. Insoluble in water.
[λmax]

373nm(EtOH)(lit.)
[Merck ]

1014
[BRN ]

631803
[InChIKey]

AIXZBGVLNVRQSS-UHFFFAOYSA-N
[CAS DataBase Reference]

7128-64-5(CAS DataBase Reference)
[NIST Chemistry Reference]

Benzoxazole, 2,2'-(2,5-thiophenediyl)bis[5-(1,1-dimethylethyl)-(7128-64-5)
[EPA Substance Registry System]

7128-64-5(EPA Substance)
Safety DataBack Directory
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S24/25:Avoid contact with skin and eyes .
[WGK Germany ]

1
[RTECS ]

DM4888332
[TSCA ]

Yes
[HS Code ]

29349990
[Toxicity]

LD50 orl-rat: >10 g/kg MVCRB3 2,193,1973
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Dichloromethane-->Thionyl chloride-->Chloroform-->Sodium Methoxide-->Glyoxal-->Adipic acid-->2,5-Thiophenedicarboxylic acid-->2-Amino-4-tert-butylphenol
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

Fluorescent Brightener 184(7128-64-5).msds
Questions And AnswerBack Directory
[Description]

2,5-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/
Hazard InformationBack Directory
[Chemical Properties]

light yellow-green crystals
[Uses]

Optical brightener additive in polymers, fibers, films, inks, laquers, and paints. In liquid scintillators.
[Flammability and Explosibility]

Notclassified
[Safety Profile]

Low 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.

Spectrum DetailBack Directory
[Spectrum Detail]

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene(7128-64-5)MS
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene(7128-64-5)1HNMR
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene(7128-64-5)IR1
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene(7128-64-5)IR2
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

BBOT, scintillation grade(7128-64-5)
[Alfa Aesar]

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene, 99%(7128-64-5)
[Sigma Aldrich]

7128-64-5(sigmaaldrich)
[TCI AMERICA]

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene,>98.0%(LC)(7128-64-5)
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