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7128-64-5

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Product FOB Price Min.Order Supply Ability Supplier
Fluorescent Brightener 184 7128-64-5 /manufacturer/low price/high quality/in stock
Cas No: 7128-64-5
USD $ 11.0-12.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Dayang Chem (Hangzhou) Co.,Ltd. Contact Supplier
Fluorescent Brightener OB-1 C.I. 184 for plastics
Cas No: 7128-64-5
No Data 25 Kilogram 1-100 Kilogram/Month Afine Chemicals Limited Contact Supplier
Fluorescent Brightener 184
Cas No: 7128-64-5
No Data 1 Kilogram 5000 Kilogram/Month Kono Chem Co.,Ltd Contact Supplier
High quality 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene CAS 7128-64-5 with low price
Cas No: 7128-64-5
USD $ 10.0-10.0 / Kilogram 10 Kilogram 30 Metric Ton/Month Wuhan Fortuna Chemical Co.,Ltd Contact Supplier
Fluorescent Brightener 184
Cas No: 7128-64-5
No Data 1 Kilogram 5000 Metric Ton/Year Hefei TNJ chemical industry co.,ltd Contact Supplier
Flourescent brightener OB
Cas No: 7128-64-5
USD $ 2.0-3.0 / Kilogram 1 Kilogram 20 Metric Ton/Day EAST CHEMSOURCES LIMITED Contact Supplier
Factory Supply 2,5-thiophenediylbis(5-tert-butyl-1,3-benzoxazole)
Cas No: 7128-64-5
No Data 1 1 Ality Chemical Corporation Contact Supplier
Optical Brightener OB (CI 184) CAS Number 7128-64-5
Cas No: 7128-64-5
USD $ 1.0-2.0 / Metric Ton 1 Metric Ton 20 Metric Ton/Day Shanghai Sunwise Chemical Co., Ltd Contact Supplier
Factory Price Fluorescent whitening 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene 7128-64-5 Manufacturer
Cas No: 7128-64-5
USD $ 0.1-0.1 / Gram 1 Gram 100 Metric Ton/Year Xi'an Xszo Chem Co., Ltd. Contact Supplier
Fluorescent Brightener 184
Cas No: 7128-64-5
USD $ 47.0-47.0 / Metric Ton 25 Metric Ton 100 Metric Ton/Month King Brother Chem Co., Ltd Contact Supplier

7128-64-5 Usage

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

https://pubchem.ncbi.nlm.nih.gov/compound/bbot#section=Top https://www.alfa.com/zh-cn/catalog/A14928/ http://www.xcolorpigment.com/FLUORESCENT-BRIGHTENER-OB.html http://www.offerchems.com/products/catalyst-auxiliary/fluorescent-brightener-184-cas-7128-64-5/

Chemical Properties

light yellow-green crystals

Uses

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

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.

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.

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.
InChI:InChI=1/C26H26N2O2S/c1-25(2,3)15-7-9-19-17(13-15)27-23(29-19)21-11-12-22(31-21)24-28-18-14-16(26(4,5)6)8-10-20(18)30-24/h7-14H,1-6H3

7128-64-5 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Alfa Aesar (A14928)  2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene, 99%    7128-64-5 5g 348.0CNY Detail
Alfa Aesar (A14928)  2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene, 99%    7128-64-5 25g 1480.0CNY Detail
Alfa Aesar (A14928)  2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene, 99%    7128-64-5 100g 4851.0CNY Detail
Sigma-Aldrich (223999)  2,5-Bis(5-tert-butyl-benzoxazol-2-yl)thiophene  suitable for scintillation, 99% 7128-64-5 223999-5G 415.35CNY Detail

7128-64-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name Fluorescent Brightener 184

1.2 Other means of identification

Product number -
Other names B-184

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:7128-64-5 SDS

7128-64-5Synthetic route

Thiophene-2,5-dicarboxylic acid
4282-31-9

Thiophene-2,5-dicarboxylic acid

2-amino-4-tert-butylphenol
1199-46-8

2-amino-4-tert-butylphenol

Uvitex OB
7128-64-5

Uvitex OB

Conditions
ConditionsYield
With boric acid In toluene at 170 - 240℃; Solvent; Temperature; Inert atmosphere;98.7%
Thiophene-2,5-dicarboxylic acid bis-[(5-tert-butyl-2-hydroxy-phenyl)-amide]

Thiophene-2,5-dicarboxylic acid bis-[(5-tert-butyl-2-hydroxy-phenyl)-amide]

Uvitex OB
7128-64-5

Uvitex OB

Conditions
ConditionsYield
at 200℃; for 3h; Yield given;
thiophene-2,5-dicarbonyl dichloride
3857-36-1

thiophene-2,5-dicarbonyl dichloride

Uvitex OB
7128-64-5

Uvitex OB

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: Heating
2: 3 h / 200 °C
View Scheme
Thiophene-2,5-dicarboxylic acid
4282-31-9

Thiophene-2,5-dicarboxylic acid

Uvitex OB
7128-64-5

Uvitex OB

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: N-methyl-2-pyrrolidone, thionyl chloride
2: Heating
3: 3 h / 200 °C
View Scheme
decacarbonyldirhenium(0)
14285-68-8

decacarbonyldirhenium(0)

1,2,4-trihydroxy-9,10-anthraquinone
81-54-9

1,2,4-trihydroxy-9,10-anthraquinone

Uvitex OB
7128-64-5

Uvitex OB

[(Re(CO)3)4(2,5-bis(5-tert-butyl-2-benzoxazolyl)thiophene)2(1,2,4-trihydroxy-9,10-anthraquinone(-2H))2]

[(Re(CO)3)4(2,5-bis(5-tert-butyl-2-benzoxazolyl)thiophene)2(1,2,4-trihydroxy-9,10-anthraquinone(-2H))2]

Conditions
ConditionsYield
In 1,2,5-trimethyl-benzene under reflux;99%
decacarbonyldirhenium(0)
14285-68-8

decacarbonyldirhenium(0)

1,4-dihydroxy-9,10-anthracenedione
81-64-1

1,4-dihydroxy-9,10-anthracenedione

Uvitex OB
7128-64-5

Uvitex OB

[(Re(CO)3)4(2,5-bis(5-tert-butyl-2-benzoxazolyl)thiophene)2(1,4-dihydroxy-9,10-anthraquinone(-2H))2]
918153-35-2

[(Re(CO)3)4(2,5-bis(5-tert-butyl-2-benzoxazolyl)thiophene)2(1,4-dihydroxy-9,10-anthraquinone(-2H))2]

Conditions
ConditionsYield
In 1,2,5-trimethyl-benzene under reflux;99%
iron (III) bromide

iron (III) bromide

Uvitex OB
7128-64-5

Uvitex OB

(2,5-bis-(5-tert-butyl-2-benzoxazolyl)thiophene)FeBr3

(2,5-bis-(5-tert-butyl-2-benzoxazolyl)thiophene)FeBr3

Conditions
ConditionsYield
In tetrahydrofuran Stirring for several h; Under Ar or N2;98%
decacarbonyldirhenium(0)
14285-68-8

decacarbonyldirhenium(0)

1,2,4-trihydroxy-9,10-anthraquinone
81-54-9

1,2,4-trihydroxy-9,10-anthraquinone

Uvitex OB
7128-64-5

Uvitex OB

C76H33N4O26Re4S2

C76H33N4O26Re4S2

Conditions
ConditionsYield
In 1,3,5-trimethyl-benzene Heating / reflux;
decacarbonyldirhenium(0)
14285-68-8

decacarbonyldirhenium(0)

1,4-dihydroxy-9,10-anthracenedione
81-64-1

1,4-dihydroxy-9,10-anthracenedione

Uvitex OB
7128-64-5

Uvitex OB

C76H33N4O24Re4S2

C76H33N4O24Re4S2

Conditions
ConditionsYield
In 1,3,5-trimethyl-benzene Heating / reflux;
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