2-(5-bromo-2-thienyl)pyridine

Modify Date: 2026-08-14 10:23:57

2-(5-bromo-2-thienyl)pyridine Structure
2-(5-bromo-2-thienyl)pyridine structure
Common Name 2-(5-bromo-2-thienyl)pyridine
CAS Number 123784-07-6 Molecular Weight 240.12000
Density 1.563g/cm3 Boiling Point 301.7ºC at 760 mmHg
Molecular Formula C9H6BrNS Melting Point 87ºC
MSDS N/A Flash Point 136.2ºC

 Names

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

Name 2-(5-bromothiophen-2-yl)pyridine
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 1.563g/cm3
Boiling Point 301.7ºC at 760 mmHg
Melting Point 87ºC
Molecular Formula C9H6BrNS
Molecular Weight 240.12000
Flash Point 136.2ºC
Exact Mass 238.94000
PSA 41.13000
LogP 3.57260
Vapour Pressure 0.00186mmHg at 25°C
Index of Refraction 1.635
InChIKey AKNKWLQVFAYRRO-UHFFFAOYSA-N
SMILES Brc1ccc(-c2ccccn2)s1
Storage condition 2-8°C

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

Name: 2-(5-Bromo-2-thienyl)pyridine 97% Material Safety Data Sheet
Synonym:
CAS: 123784-07-6
Section 1 - Chemical Product MSDS Name:2-(5-Bromo-2-thienyl)pyridine 97% Material Safety Data Sheet
Synonym:

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
123784-07-6 2-(5-Bromo-2-thienyl)pyridine 97% unlisted
Hazard Symbols: XN
Risk Phrases: 20/21/22 36/37/38

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed.
Irritating to eyes, respiratory system and skin.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation.
Chronic:
Not available.

Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container.

Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 123784-07-6: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Solid
Color: beige
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 86 - 88 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C9H6BrNS
Molecular Weight: 240.12

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents, acids, acid chlorides, alcohols, amines.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen bromide, acrid smoke and fumes, bromine.
Hazardous Polymerization: Has not been reported

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 123784-07-6 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
2-(5-Bromo-2-thienyl)pyridine - Not listed by ACGIH, IARC, or NTP.

Section 12 - ECOLOGICAL INFORMATION


Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION

IATA
No information available.
IMO
No information available.
RID/ADR
No information available.

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with
skin and if swallowed.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
WGK (Water Danger/Protection)
CAS# 123784-07-6: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 123784-07-6 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 123784-07-6 is not listed on the TSCA inventory.
It is for research and development use only.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes Xn
Risk Phrases R20/21/22;R36/37/38
Safety Phrases 26-36/37/39
HS Code 2934999090

 Synthetic Route

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

~99%

2-(5-bromo-2-thienyl)pyridine Structure

2-(5-bromo-2-th...

CAS#:123784-07-6

Learn More
Literature: US2004/157787 A1, ; US2005/37982 A1, ;

~%

2-(5-bromo-2-thienyl)pyridine Structure

2-(5-bromo-2-th...

CAS#:123784-07-6

Learn More
Literature: Journal of Organic Chemistry USSR (English Translation), , vol. 25, # 3.2 p. 570 - 575 Zhurnal Organicheskoi Khimii, , vol. 25, # 3 p. 633 - 639

~%

2-(5-bromo-2-thienyl)pyridine Structure

2-(5-bromo-2-th...

CAS#:123784-07-6

Learn More
Literature: Journal of Organic Chemistry USSR (English Translation), , vol. 25, # 3.2 p. 570 - 575 Zhurnal Organicheskoi Khimii, , vol. 25, # 3 p. 633 - 639

~%

2-(5-bromo-2-thienyl)pyridine Structure

2-(5-bromo-2-th...

CAS#:123784-07-6

Learn More
Literature: Heterocycles, , vol. 32, # 11 p. 2111 - 2118

~%

2-(5-bromo-2-thienyl)pyridine Structure

2-(5-bromo-2-th...

CAS#:123784-07-6

Learn More
Literature: Journal of Organic Chemistry USSR (English Translation), , vol. 25, # 3.2 p. 570 - 575 Zhurnal Organicheskoi Khimii, , vol. 25, # 3 p. 633 - 639

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

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

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

2-bromo-5-(2'-pyridyl)thiophene
2-bromo-5-(pyrid-2-yl)thiophene
Pyridine,2-(5-bromo-2-thienyl)
2-(5-Bromothien-2-yl)pyridine
2-(3,5-DIBROMO-4-NITRO-1H-PYRAZOL-1-YL)ACETIC ACID
2-(2-bromothien-5-yl)pyridine
MFCD00120466
2-(5-bromo-2-thienyl)pyridine

 2-(5-bromo-2-thienyl)pyridine | FAQ

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

Q: What is the CAS number of 2-(5-bromothiophen-2-yl)pyridine?
A: CAS number of 2-(5-bromothiophen-2-yl)pyridine is 123784-07-6.
Q: What is the LogP of 2-(5-bromothiophen-2-yl)pyridine?
A: LogP of 2-(5-bromothiophen-2-yl)pyridine is 3.57260.
Q: What is the InChIKey of 2-(5-bromothiophen-2-yl)pyridine?
A: InChIKey of 2-(5-bromothiophen-2-yl)pyridine is AKNKWLQVFAYRRO-UHFFFAOYSA-N.
Q: What are the downstream products of 2-(5-bromothiophen-2-yl)pyridine?
A: Related downstream products(CAS) of 2-(5-bromothiophen-2-yl)pyridine: 1446418-87-6;3319-99-1;119082-97-2;132706-12-8;35299-68-4.
Q: What is the English name of 2-(5-bromothiophen-2-yl)pyridine?
A: The English name of 2-(5-bromothiophen-2-yl)pyridine is 2-(5-bromothiophen-2-yl)pyridine.
Q: What is the boiling point of 2-(5-bromothiophen-2-yl)pyridine?
A: Boiling point of 2-(5-bromothiophen-2-yl)pyridine is 301.7ºC at 760 mmHg.
Q: What is the molecular weight of 2-(5-bromothiophen-2-yl)pyridine?
A: Molecular weight of 2-(5-bromothiophen-2-yl)pyridine is 240.12000.
Q: What is the polar surface area (PSA) of 2-(5-bromothiophen-2-yl)pyridine?
A: Polar surface area (PSA) of 2-(5-bromothiophen-2-yl)pyridine is 41.13000.
Q: What is the melting point of 2-(5-bromothiophen-2-yl)pyridine?
A: Melting point of 2-(5-bromothiophen-2-yl)pyridine is 87ºC.
Q: What are the upstream materials of 2-(5-bromothiophen-2-yl)pyridine?
A: Related upstream materials(CAS) of 2-(5-bromothiophen-2-yl)pyridine: 3319-99-1;2160-62-5;74-86-2;1003-31-2;19162-80-2;63755-30-6.

 2-(5-bromo-2-thienyl)pyridinefactory

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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