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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 12286Generated: October 23, 2026

3-Bromopyridine

3-BROMOPYRIDINE · 3-Pvridyl bromide · Pyridine, 3-bromo- · NSC 3974 · AURORA KA-875 · 3-bromo-pyridin · M-BroMopyridine · 5-BROMO PYRIDINE

https://huagongshe.com/en/chemical/12286

3-Bromopyridine molecular structure

Identifiers & Physical Properties

CAS No.626-55-1
Molecular formulaC5H4BrN
Average molar mass158 g/mol
Monoisotopic mass156.95271123 g/mol
SMILESBrc1cccnc1
InChIKeyNYPYPOZNGOXYSU-UHFFFAOYSA-N
PubChem CID12286
ChEMBLCHEMBL5396433
ChEBICHEBI:51575
EC No.210-952-0
DTXSIDDTXSID9060819

Chemical & Physical Properties

XLogP1.6
Topological polar surface area12.9
Hydrogen bond donors0
Hydrogen bond acceptors1
Rotatable bonds0
Heavy atoms7
Formal charge0
Complexity56
Chemical classesNitrogen Compounds -> Pyridines
SpringerMaterials Properties15N nuclear magnetic resonance spectrum
LogP (partition coefficient)1.5
Flash point51 °C125 °F
Vapor pressure1.75 [mmHg]1.64hPa at 25℃
Physical DescriptionNeedles[Hawley] Colorless liquid[MSDSonline]
Melting point-27°C
Boiling point173 °C (lit.)
Density1.64 g/mL at 25 °C (lit.)
Refractive indexn20/D 1.571(lit.)
Storage conditionsKeep in dark place,Inert atmosphere,2-8°C
Solubility31g/lSoluble in water (31 g/L at 20°C).
Physical stateLiquid
pKa (acidity coefficient)2.84(at 25℃)
Specific gravity1.617
ColorClear colorless to yellow or slightly brown
BRN105880
Henry's law constant8.3×10-1 mol/(m3Pa) at 25℃, Ebert et al. (2023)
Dielectric constant9.8499999999999996
InChI1S/C5H4BrN/c6-5-2-1-3-7-4-5/h1-4H
InChIKeyNYPYPOZNGOXYSU-UHFFFAOYSA-N
SMILESBrc1cccnc1
LogP (partition coefficient)1.694
CAS DataBase Reference626-55-1(CAS DataBase Reference)
FDA UNIIXMN8H2XE9H
NIST Chemistry ReferencePyridine, 3-bromo-(626-55-1)
EPA Substance Registry System3-Bromopyridine (626-55-1)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS02,GHS07
Signal wordWarning
GHS hazard statementsH226-H302-H315-H319-H335
GHS precautionary statementsP210-P301+P312+P330-P302+P352-P305+P351+P338
Target organsRespiratory system
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard symbolsXn,T,F,Xi
Risk statements (R)10-22-36/37/38-23/24/25-20/21/22
Safety statements (S)26-45-38-36/37/39-28A-16
UN transport numberUN 1993 3/PG 3
Water hazard class (WGK)3
F8
Hazard NoteToxic/Flammable/Irritant
TSCA inventory statusTSCA listed
Hazard class6.1Acute Tox. 4 OralEye Irrit. 2Flam. Liq. 3Skin Irrit. 2STOT SE 3
Packing groupIII
Customs code29333999
Storage class3 - Flammable liquids
REACH registrationsActive
Limited quantities5.0 L (1.3 gallons) (liquid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

Safety & Regulations

GHS classificationDangerH226 (93.3%): Flammable liquid and vapor [Warning Flammable liquids]P210, P233, P240, P241, P242, P243, P261, P262, P264, P264+P265, P270, P271, P280, P301+P316, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P316, P317, P319, P321, P330, P332+P317, P337+P317, P361+P364, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 60 reports by companies from 15 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatory informationChemical: Pyridine, 3-bromo-Status: Active Update: 03-07-2017 https://echa.europa.eu/registration-dossier/-/registered-dossier/198673-Bromopyridine: Does not have an individual approval but may be used under an appropriate group standard
Hazards summaryA skin, eye, and respiratory tract irritant[MSDSonline] Pyridine compounds are potential CNS depressants[Ullmann] See Pyridine.
Hazard Classes and CategoriesFlam. Liq. 3 (93.3%)
Adverse effectsNeurotoxin - Other CNS neurotoxin
F8
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Water hazard class (WGK)3
TSCA inventory statusTSCA listed
UN transport numberUN 1993 3/PG 3
Customs code29333999
Risk statements (R)10-22-36/37/38-23/24/25-20/21/22
Signal wordWarning
GHS pictogramGHS02,GHS07
Hazard symbolsXn,T,F,Xi
hazard_noteToxic/Flammable/Irritant
Safety statements (S)26-45-38-36/37/39-28A-16
Hazard class6.1Acute Tox. 4 OralEye Irrit. 2Flam. Liq. 3Skin Irrit. 2STOT SE 3
Storage class3 - Flammable liquids
Packing groupIII
Target organsRespiratory system
GHS hazard statementsH226-H302-H315-H319-H335
Limited quantities5.0 L (1.3 gallons) (liquid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
REACH registrationsActive
GHS precautionary statementsP210-P301+P312+P330-P302+P352-P305+P351+P338

Applications & Uses

Uses

3-Bromopyridine undergoes lithiation with LDA at low temperatures in the 4-position: Heterocycles, involved in formation of the Grignard by Mg exchange with i-PrMgCl and in transmetallation of the lithiated derivative with zinc chloride followed by treatment with an electrophile as a route to 4-substituted 3-bromopyridines.

Uses

Pyridine as novel substrate for regioselective oxygenation with aromatic peroxygenase from Agrocybe aegerita.