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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 2782792Generated: October 23, 2026

2-Chloro-4-fluoropyridine

2-Chlro-4-fluorpyridine · 2-Cloro-4-fluoropyridine · 2-CHLORO-4-FULOROPYRIDINE · 2-CHLORO-4-FLUOROPYRIDINE · Pyridine, 2-chloro-4-fluoro- · 2-Chloro-4-fluoropyridine>2--4- fluoropyridinechloride · 2-Chloro-4-fluoropyridine,97% · 2-Chloro-4-fluoropyridine AldrichCPR

https://huagongshe.com/en/chemical/2782792

2-Chloro-4-fluoropyridine molecular structure

Identifiers & Physical Properties

CAS No.34941-91-8
Molecular formulaC5H3ClFN
Average molar mass131.53 g/mol
Monoisotopic mass130.993805 g/mol
SMILESFc1ccnc(Cl)c1
InChIKeyFGSAQRJRWCZLOB-UHFFFAOYSA-N
PubChem CID2782792
EC No.675-788-8
DTXSIDDTXSID20382299

Chemical & Physical Properties

XLogP1.9
Topological polar surface area12.9
Hydrogen bond donors0
Hydrogen bond acceptors2
Rotatable bonds0
Heavy atoms8
Formal charge0
Complexity78.8
Boiling point140°C
Density1,456g/cm
Flash point140°C
Refractive index1.5015
Storage conditionsInert atmosphere,2-8°C
pKa (acidity coefficient)1.20±0.10(Predicted)
Physical stateLiquid
ColorColorless to pale yellow
BRN1634747
InChIInChI=1S/C5H3ClFN/c6-5-3-4(7)1-2-8-5/h1-3H
InChIKeyFGSAQRJRWCZLOB-UHFFFAOYSA-N
SMILESC1(Cl)=NC=CC(F)=C1
CAS DataBase Reference34941-91-8(CAS DataBase Reference)
UNSPSC Code12352200
GHS pictogramGHS02,GHS05,GHS07,GHS06
Signal wordDanger
GHS hazard statementsH226-H302+H312+H332-H315-H318-H301-H310-H330-H335
GHS precautionary statementsP210-P233-P240-P241+P242+P243-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P310-P403+P235-P501-P301+P310a-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P405-P501a
Target organsRespiratory system
Hazard symbolsXi,F,Xn
Risk statements (R)20/21/22-36/37/38-10
Safety statements (S)26-36/37/39-36
UN transport number1993
Water hazard class (WGK)WGK 3
Hazard NoteFlammable/Irritant
Hazard classTOXIC, FLAMMABLEAcute Tox. 4 DermalAcute Tox. 4 InhalationAcute Tox. 4 OralEye Irrit. 2Flam. Liq. 3Skin Irrit. 2STOT SE 3
Packing groupIII
Customs code29333990
Storage class3 - Flammable liquids
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 (97.9%): Flammable liquid and vapor [Warning Flammable liquids]P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 48 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesFlam. Liq. 3 (97.9%)
Water hazard class (WGK)WGK 3
UN transport number1993
Customs code29333990
Risk statements (R)20/21/22-36/37/38-10
Signal wordDanger
GHS pictogramGHS02,GHS05,GHS07,GHS06
Hazard symbolsXi,F,Xn
hazard_noteFlammable/Irritant
Safety statements (S)26-36/37/39-36
Hazard class6.1Acute Tox. 4 DermalAcute Tox. 4 InhalationAcute Tox. 4 OralEye Irrit. 2Flam. Liq. 3Skin Irrit. 2STOT SE 3
Storage class3 - Flammable liquids
Packing groupIII
Target organsRespiratory system
GHS hazard statementsH226-H302+H312+H332-H315-H318-H301-H310-H330-H335
Limited quantities5.0 L (1.3 gallons) (liquid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
GHS precautionary statementsP210-P233-P240-P241+P242+P243-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P310-P403+P235-P501-P301+P310a-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P405-P501a

Applications & Uses

Uses

2-Chloro-4-fluoropyridine is a useful research chemical.