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

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Structure
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene structure
CAS No.
7128-64-5
Chemical Name:
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
Synonyms
Optical Brightener OB;UVITEX OB;TINOPAL CBS-X;2,5-BIS(5-TERT-BUTYL-BENZOXAZOL-2-YL)THIOPHENE;UVITEX;Optical Brightening Agent;2,5-BIS(5-TERT-BUTYLBENZOXAZOYL)-2-THIOPHENE;BBOT;B-184;bbot150
CBNumber:
CB3434574
Molecular Formula:
C26H26N2O2S
Molecular Weight:
430.56
MDL Number:
MFCD00005774
MOL File:
7128-64-5.mol
MSDS File:
SDS
Last updated:2024-03-13 16:52:01
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2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Properties

Melting point 199-201 °C(lit.)
Boiling point 531.2±45.0 °C(Predicted)
Density 1.26
refractive index 1.6360 (estimate)
Flash point >350°C
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility toluene: soluble50mg/mL
pka 3.03±0.10(Predicted)
form powder
color Pale Green to Yellow
Water Solubility Soluble in acetone and toluene. Insoluble in water.
λmax 373nm(EtOH)(lit.)
Merck 14,1014
BRN 631803
Stability Stable. Incompatible with strong oxidizing agents.
InChIKey AIXZBGVLNVRQSS-UHFFFAOYSA-N
LogP 8.6 at 25℃
Indirect Additives used in Food Contact Substances 2,2'-(2,5-THIOPHENEDIYL)-BIS (5-TERT-BUTYLBENZOXAZOLE)
FDA 21 CFR 178.3297
CAS DataBase Reference 7128-64-5(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII W7UR9129GP
NIST Chemistry Reference Benzoxazole, 2,2'-(2,5-thiophenediyl)bis[5-(1,1-dimethylethyl)-(7128-64-5)
EPA Substance Registry System 2,2'-(2,5-Thiophenediyl)bis[5-tert-butylbenzoxazole] (7128-64-5)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P261-P271-P280
Risk Statements  36/37/38
Safety Statements  24/25
WGK Germany  1
RTECS  DM4888332
TSCA  Yes
HS Code  29349990
Toxicity LD50 orl-rat: >10 g/kg MVCRB3 2,193,1973
NFPA 704
0
1 0

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene price More Price(45)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 223999 2,5-Bis(5-tert-butyl-benzoxazol-2-yl)thiophene suitable for scintillation, 99% 7128-64-5 5g $56.9 2024-03-01 Buy
TCI Chemical B1554 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene >98.0%(HPLC)(N) 7128-64-5 5g $36 2024-03-01 Buy
TCI Chemical B1554 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene >98.0%(HPLC)(N) 7128-64-5 25g $76 2024-03-01 Buy
Alfa Aesar A14928 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene, 99% 7128-64-5 5g $47 2024-03-01 Buy
Alfa Aesar A14928 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene, 99% 7128-64-5 25g $116 2024-03-01 Buy
Product number Packaging Price Buy
223999 5g $56.9 Buy
B1554 5g $36 Buy
B1554 25g $76 Buy
A14928 5g $47 Buy
A14928 25g $116 Buy

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Chemical Properties,Uses,Production

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/

Chemical Properties

light yellow-green crystals

Uses

2,5-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.

Uses

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

Flammability and Explosibility

Not classified

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.

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

4282-31-9
7128-64-5
Synthesis of 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene from 2,5-Thiophenedicarboxylic acid

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Preparation Products And Raw materials

Raw materials

Adipic acid Glyoxal Chloroform Sodium Methoxide 2-Amino-4-tert-butylphenol
Sodium disulfide Dichloromethane Thionyl chloride 2,5-Thiophenedicarboxylic acid

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Preparation Products

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

Global( 448)Suppliers
Supplier Tel Email Country ProdList Advantage
career henan chemical co 		+86-0371-86658258 sales@coreychem.com China 29914 58
Winchem industrial co limited
+86-0086-574-83851061 +86-13003762012 lucyhu@win-chemical.com China 300 58
Qingdao Truelight functional Material Technology Co., Ltd.
+86-13573844393 songjames@truelightchem.com China 219 58
airuikechemical co., ltd. 		+undefined86-15315557071 sales02@airuikechemical.com China 994 58
Capot Chemical Co.,Ltd. 		571-85586718 +8613336195806 sales@capotchem.com China 29797 60
Shanghai Daken Advanced Materials Co.,Ltd 		+86-371-66670886 info@dakenam.com China 15371 58
Dalian Richfortune Chemicals Co., Ltd 		0411-84820922 8613904096939 sales@richfortunechem.com China 303 57
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21695 55
Hangzhou FandaChem Co.,Ltd. 		008657128800458; +8615858145714 fandachem@gmail.com China 9352 55
Tianjin Zhongxin Chemtech Co., Ltd. 		+86-022-66880623 +8618622897568 sales@tjzxchem.com China 559 58
Supplier Advantage
career henan chemical co 		58
Winchem industrial co limited
58
Qingdao Truelight functional Material Technology Co., Ltd.
58
airuikechemical co., ltd. 		58
Capot Chemical Co.,Ltd. 		60
Shanghai Daken Advanced Materials Co.,Ltd 		58
Dalian Richfortune Chemicals Co., Ltd 		57
Henan Tianfu Chemical Co.,Ltd. 		55
Hangzhou FandaChem Co.,Ltd. 		55
Tianjin Zhongxin Chemtech Co., Ltd. 		58

Related articles

View Lastest Price from 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
OPTICAL BRIGHTENER TRUELICHT OB pictures 2024-04-16 OPTICAL BRIGHTENER TRUELICHT OB
7128-64-5
 US $0.00 / KG 1drums 98% 20 tons Qingdao Truelight functional Material Technology Co., Ltd.
Optical brightener Ob pictures 2024-03-13 Optical brightener Ob
7128-64-5
 US $0.00-0.00 / Kg 1Kg 99.9% 20 tons airuikechemical co., ltd.
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene pictures 2023-10-14 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
7128-64-5
 US $0.00-0.00 / kg 1kg 99% 50000kg Hebei Yibangte Import and Export Co. , Ltd.

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

2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene(7128-64-5)MS2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene(7128-64-5)1HNMR2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene(7128-64-5)IR12,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene(7128-64-5)IR2

7128-64-5(2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene)Related Search:

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C.I. 482200 BISMERTHIAZOL Fluorescent Brightener 28 tert-Butyl hydroperoxide 2-Butoxyethanol
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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 2,5-DI(5-TERT-BUTYLBENZOXAZOL-2-YL)THIOPHENE 2,5-BIS-2(5-TERT-BUTYL-BENZOXALYL)THIOPHENE 2,5-BIS(5'-TERT-BUTYL-2'-BENZOXAZOLYL)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-T-BUTYLBENZOXAZOLYL-[2-YL])-THIOPHENE 2,5-BIS(5-T-BUTYL-2-BENZOXAZOLYL)THIOPHENE 2,2'-(2,5-THIOPHENEDIYL) BIS [5-TERT-BUTYLBENZOXAZOLE] 2,5-thiophenediylbis(5-tert-butyl-1,3-benzoxazole) Optical Brightening Agent OB C. I. 184 Fluorescent whitening agent OB BIS(T-BUTYL BENZOXAZOLYL) THIOPHENE 2 5-BIS(5-TERT-BUTYL-2-BENZOXAZOLYL)THI& 2,5-BIS(5-TERT-BUTYL-2-BENZOXAZOLYL)THIO -PHENE, 99%, SCINTILLATION GRADE OptiblancPL 2,5-BIS-(5'-TERT-BUTYL-2-BENZOXAZOL-2-YL)THIOPHENE (BBOT) BBOT, scintillation grade OpticalBrighteningAgentOBC.I. 2,2'-(Thien-2,5-diyl)bis[5-(tert-butyl)-1,3-benzoxazole], 2,5-Bis[5-(tert-butyl)benzo[d]oxazol-2-yl]thiophene, BBOT 2,5-Bis[5-(tert-butyl)-1,3-benzoxazol-2-yl]thiophene 2,2-(2,5-two phenylthio)-[5-(1,1- twoMethyl ethyl)]benzoxazoles 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene,99% 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Optical Brighter OB 2,5-Bis(5-tert-butylbenzooxazol-2-yl)thiophene UVITEX 2B UVITEX(R) 2B TOSLAB 644820 2,2’-(2,5-thiophenediyl)bis(5-(1,1-dimethylethyl)-benzoxazol 2,2’-(2,5-thiophenediyl)bis(5-tert-butyl-benzoxazol 2,2’-(2,5-thiophenediyl)bis[5-(1,1-dimethylethyl)-benzoxazol 2,2’-(2,5-thiophenediyl)bis[5-(1,1-dimethylethyl)-Benzoxazole 2,5-Thiophendiylbis(5-tert.-butyl-1,3-benzoxazol) 1,4-BIS(BENZOXAZOLE-2-YL)NAPHTHALENE 2,5-Bis(5-t-butylbenzoxazol-2-yl)thiophene 2,5-Bis-2(5-tert-butylbenzoxazolyl)thiophene 5-tert-Butyl-2-[5-(5-tert-butyl-1,3-benzoxazol-2-yl)-2-thienyl]-1,3-benzoxazole EUTEX OB-RC EUTEX-OB RC EXTRA FLUORESCENTBRIGHTENEROB(2,5-BIS(5-TERT-BUTYL-2-BENZOXAOLYL)THIOPHENE) Fluorescent Brightener 184 2，5-di[5'-tertutyl-benzoxa-zolyl-2']-thiophene 5-tert-Butyl-2-[5-(5-tert-butyl-1,3-benzoxazol-2-yl)thiophen-2-yl]-1,3-benzoxazole 2,2'-(Thiophene-2,5-diyl)bis(5-tert-butylbenzoxazole) B-184 Fluorescent Brighten OPTICAL BRIGHTENER 184 2,5-bis thiophene BBOT, scintillation grade 5GR FBA 184