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

Modify Date: 2025-08-25 10:23:53

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

Name	Fluorescent Brightener 185
Synonym	More Synonyms

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)
InChIKey	UGFSLKRMHPGLFU-UHFFFAOYSA-N
SMILES	c1ccc2oc(-c3ccc(-c4nc5ccccc5o4)s3)nc2c1

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

HS Code	2934999090

Thiophene-2,5-d...

CAS#:4282-31-9

aminophenol

CAS#:95-55-6

~5%

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

CAS#:273-53-0

2,5-Diiodothiophene

CAS#:625-88-7

~90%

2,2'-thiophene-...

CAS#:2866-43-5

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

Benzoxazole

CAS#:273-53-0

2,5-Dibromothiophene

CAS#:3141-27-3

~50%

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

CAS#:934329-17-6

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

CAS#:273-53-0

2,5-Dibromothiophene

CAS#:3141-27-3

~49%

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-d...

CAS#:4282-31-9

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-THIOPHENEDI...

CAS#:3857-36-1

2,2'-thiophene-...

CAS#:2866-43-5

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

Precursor 6
CAS#:4282-31-9 Thiophene-2,5-d... CAS#:95-55-6 aminophenol CAS#:273-53-0 Benzoxazole CAS#:625-88-7 2,5-Diiodothiophene
CAS#:3141-27-3 2,5-Dibromothiophene CAS#:3857-36-1 2 5-THIOPHENEDI...
DownStream 0

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

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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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2,2'-thiophene-2,5-diylbis(benzoxazole)
Price: Check
Purity: 99.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,2'-thiophene-2,5-diylbis(benzoxazole)
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

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

Names

Chemical & Physical Properties

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

Safety Information

Synthetic Route

Precursor & DownStream

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Synonyms

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.