2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine

Modify Date: 2026-08-02 18:21:33

2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine Structure
2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine structure
 Common Name 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine
CAS Number 875781-45-6 Molecular Weight 478.103
Density 2.1±0.1 g/cm3 Boiling Point 560.1±60.0 °C at 760 mmHg
Molecular Formula C13H9BrIN3O2S Melting Point N/A
MSDS N/A Flash Point 292.6±32.9 °C

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 2.1±0.1 g/cm3
Boiling Point 560.1±60.0 °C at 760 mmHg
Molecular Formula C13H9BrIN3O2S
Molecular Weight 478.103
Flash Point 292.6±32.9 °C
Exact Mass 476.864349
PSA 73.23000
LogP 3.69
Vapour Pressure 0.0±1.5 mmHg at 25°C
Index of Refraction 1.777
InChIKey QONWBLJGJMTBKI-UHFFFAOYSA-N
SMILES Cc1ccc(S(=O)(=O)n2cc(I)c3nc(Br)cnc32)cc1

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

5-Bromo-3-iodo-4,7-diazaindole structure

5-Bromo-3-iodo-...

CAS#:875781-44-5

Tosyl chloride structure

Tosyl chloride

CAS#:98-59-9

~92%

2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine Structure

2-Bromo-7-iodo-...

CAS#:875781-45-6

Learn More
Literature: UNIVERSITY OF ROCHESTER; BOARD OF REGENTS OF THE UNIVERSITY OF NEBRASKA; GELBARD, Harris A.; DEWHURST, Stephen; GENDELMAN, Howard E. Patent: WO2014/85795 A1, 2014 ; Location in patent: Paragraph 0284 ;
5-Bromo-4,7-diazaindole structure

5-Bromo-4,7-dia...

CAS#:875781-43-4

Tosyl chloride structure

Tosyl chloride

CAS#:98-59-9

~99%

2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine Structure

2-Bromo-7-iodo-...

CAS#:875781-45-6

Learn More
Literature: SGX PHARMACEUTICALS, INC. Patent: WO2006/15124 A2, 2006 ; Location in patent: Page/Page column 103 ; WO 2006/015124 A2
5-Bromo-3-((trimethylsilyl)ethynyl)pyrazin-2-amine structure

5-Bromo-3-((tri...

CAS#:875781-41-2

~%

2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine Structure

2-Bromo-7-iodo-...

CAS#:875781-45-6

Learn More
Literature: UNIVERSITY OF ROCHESTER; GELBARD, Harris, A.; DEWHURST, Stephen; GOODFELLOW, Val, S.; WIEMANN, Torsten; RAVULA, Satheesh, Babu; LOWETH, Colin, J. Patent: WO2011/149950 A2, 2011 ; WO 2011/149950 A2
N-(5-bromo-3-((trimethylsilyl)ethynyl)pyrazin-2-yl)acetamide structure

N-(5-bromo-3-((...

CAS#:875781-42-3

~%

2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine Structure

2-Bromo-7-iodo-...

CAS#:875781-45-6

Learn More
Literature: UNIVERSITY OF ROCHESTER; GELBARD, Harris, A.; DEWHURST, Stephen; GOODFELLOW, Val, S.; WIEMANN, Torsten; RAVULA, Satheesh, Babu; LOWETH, Colin, J. Patent: WO2011/149950 A2, 2011 ; WO 2011/149950 A2
5-Bromo-4,7-diazaindole structure

5-Bromo-4,7-dia...

CAS#:875781-43-4

~%

2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine Structure

2-Bromo-7-iodo-...

CAS#:875781-45-6

Learn More
Literature: UNIVERSITY OF ROCHESTER; GELBARD, Harris, A.; DEWHURST, Stephen; GOODFELLOW, Val, S.; WIEMANN, Torsten; RAVULA, Satheesh, Babu; LOWETH, Colin, J. Patent: WO2011/149950 A2, 2011 ; WO 2011/149950 A2

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

2-Bromo-7-iodo-5-[(4-methylphenyl)sulfonyl]-5H-pyrrolo[2,3-b]pyrazine
2-bromo-7-iodo-5-(4-methylphenyl)sulfonylpyrrolo[2,3-b]pyrazine

  | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the English name of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine?
A: The English name of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine is 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine.
Q: What is the molecular formula of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine?
A: Molecular formula of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine is C13H9BrIN3O2S.
Q: What is the CAS number of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine?
A: CAS number of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine is 875781-45-6.
Q: What is the polar surface area (PSA) of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine?
A: Polar surface area (PSA) of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine is 73.23000.
Q: What is the InChIKey of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine?
A: InChIKey of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine is QONWBLJGJMTBKI-UHFFFAOYSA-N.
Q: What is the SMILES notation of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine?
A: SMILES notation of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine is Cc1ccc(S(=O)(=O)n2cc(I)c3nc(Br)cnc32)cc1.
Q: What is the boiling point of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine?
A: Boiling point of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine is 560.1±60.0 °C at 760 mmHg.
Q: What is the molecular weight of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine?
A: Molecular weight of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine is 478.103.
Q: What is the LogP of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine?
A: LogP of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine is 3.69.
Q: What English synonyms does 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine have?
A: English synonyms of 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine: 2-Bromo-7-iodo-5-[(4-methylphenyl)sulfonyl]-5H-pyrrolo[2,3-b]pyrazine, 2-bromo-7-iodo-5-(4-methylphenyl)sulfonylpyrrolo[2,3-b]pyrazine.

 factory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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Chemsrc provides CAS#:875781-45-6 MSDS, density, melting point, boiling point, structure, etc. Its name is 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine>> amp version: 2-Bromo-7-iodo-5-tosyl-5H-pyrrolo[2,3-b]pyrazine

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