2,2'-thiophene-2,5-diylbis(benzoxazole)

Modify Date: 2024-01-02 21:33:53

2,2'-thiophene-2,5-diylbis(benzoxazole) Structure
2,2'-thiophene-2,5-diylbis(benzoxazole) structure
 Common Name 2,2'-thiophene-2,5-diylbis(benzoxazole)
CAS Number 2866-43-5 Molecular Weight 318.34900
Density 1.385 Boiling Point 466.4ºC at 760 mmHg
Molecular Formula C18H10N2O2S Melting Point 216-220ºC
MSDS N/A Flash Point 235.9ºC

 Names

Name Fluorescent Brightener 185
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.385
Boiling Point 466.4ºC at 760 mmHg
Melting Point 216-220ºC
Molecular Formula C18H10N2O2S
Molecular Weight 318.34900
Flash Point 235.9ºC
Exact Mass 318.04600
PSA 80.30000
LogP 5.36450
Index of Refraction 1.6000 (estimate)

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DM4888166
CHEMICAL NAME :
Benzoxazole, 2,2'-(2,5-thiophenediyl)bis-
CAS REGISTRY NUMBER :
2866-43-5
LAST UPDATED :
199701
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C18-H10-N2-O2-S

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>30 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
MVCRB3 MVC-Report. (Stockholm, Sweden) No.1-2, 1972-73. Discontinued. Volume(issue)/page/year: 2,193,1973

 Safety Information

HS Code 2934999090

 Synthetic Route

Thiophene-2,5-dicarboxylic acid structure

Thiophene-2,5-d...

CAS#:4282-31-9

aminophenol structure

aminophenol

CAS#:95-55-6

~5%

2,2'-thiophene-2,5-diylbis(benzoxazole) Structure

2,2'-thiophene-...

CAS#:2866-43-5

Literature: MASSACHUSETTS INSTITUTE OF TECHNOLOGY; PRESIDENT AND FELLOWS OF HARVARD COLLEGE; GENZYME CORPORATION Patent: WO2009/137081 A2, 2009 ; Location in patent: Page/Page column 44-45 ; WO 2009/137081 A2
Benzoxazole structure

Benzoxazole

CAS#:273-53-0

2,5-Diiodothiophene structure

2,5-Diiodothiophene

CAS#:625-88-7

~90%

2,2'-thiophene-2,5-diylbis(benzoxazole) Structure

2,2'-thiophene-...

CAS#:2866-43-5

Literature: Shibahara, Fumitoshi; Yamaguchi, Eiji; Murai, Toshiaki Chemical Communications, 2010 , vol. 46, # 14 p. 2471 - 2473
Benzoxazole structure

Benzoxazole

CAS#:273-53-0

2,5-Dibromothiophene structure

2,5-Dibromothiophene

CAS#:3141-27-3

~50%

2-(5-Bromo-2-thienyl)benzoxazole structure

2-(5-Bromo-2-th...

CAS#:934329-17-6

2,2'-thiophene-2,5-diylbis(benzoxazole) Structure

2,2'-thiophene-...

CAS#:2866-43-5

Literature: Derridj, Fazia; Djebbar, Safia; Benali-Baitich, Ouassini; Doucet, Henri Journal of Organometallic Chemistry, 2008 , vol. 693, # 1 p. 135 - 144
Benzoxazole structure

Benzoxazole

CAS#:273-53-0

2,5-Dibromothiophene structure

2,5-Dibromothiophene

CAS#:3141-27-3

~49%

2,2'-thiophene-2,5-diylbis(benzoxazole) Structure

2,2'-thiophene-...

CAS#:2866-43-5

Literature: Derridj, Fazia; Gottumukkala, Aditya L.; Djebbar, Safia; Doucet, Henri European Journal of Inorganic Chemistry, 2008 , # 16 p. 2550 - 2559
Thiophene-2,5-dicarboxylic acid structure

Thiophene-2,5-d...

CAS#:4282-31-9

~%

2,2'-thiophene-2,5-diylbis(benzoxazole) Structure

2,2'-thiophene-...

CAS#:2866-43-5

Literature: Seha, Zdenek; Weis, Claus D Helvetica Chimica Acta, 1980 , vol. 63, # 2 p. 413 - 419
2 5-THIOPHENEDICARBONYL DICHLORIDE structure

2 5-THIOPHENEDI...

CAS#:3857-36-1

~%

2,2'-thiophene-2,5-diylbis(benzoxazole) Structure

2,2'-thiophene-...

CAS#:2866-43-5

Literature: Seha, Zdenek; Weis, Claus D Helvetica Chimica Acta, 1980 , vol. 63, # 2 p. 413 - 419

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

2,4-DICHLORO-5-FLUORO-3-NITROBENZOTRIFLUORIDE
2,2'-thiodipropanol
2,2'-sulfanediyldipropan-1-ol
2,2'-sulfanediyl-bis-propan-1-ol
2,2'-thiophene-2,5-diyl-bis-benzooxazole
1-Propanol,2,2'-thiobis
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