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2942-59-8

Basic Information
CAS No.: 2942-59-8
Name: 2-Chloronicotinic acid
Article Data: 50
Molecular Structure:
Molecular Structure of 2942-59-8 (2-Chloronicotinic acid)
Formula: C6H4ClNO2
Molecular Weight: 157.556
Synonyms: 3-Pyridinecarboxylic acid, 2-chloro-;Nicotinic acid, 2-chloro-;2-chloropyridine-3-carboxylic acid;2-chloropyridine-3-carboxylate;2-Chloro-3-pyridinecarboxylic acid;2-chloro-3-pyridine carboxylic acid;2,3-Pyridinedicarboxylic anhydride;2-Chloro-nicotinic acid;
EINECS: 220-937-0
Density: 1.47 g/cm3
Melting Point: 176-178 °C (dec.)(lit.)
Boiling Point: 316.8 °C at 760 mmHg
Flash Point: 145.4 °C
Appearance: white to cream powder
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 22-24/25-37/39-26-36
PSA: 50.19000
LogP: 1.43320
Synthetic route
18368-76-8

2 chloro-3-methylpyridine

2942-59-8

2-chloronicotinic acid

Conditions
ConditionsYield
With ozone; acetic acid at 20℃; for 5h; Reagent/catalyst; Temperature;98%
With N-hydroxyphthalimide; oxygen; cobalt(III) acetylacetonate In acetonitrile at 80℃; under 7500.75 Torr; for 18h; Reagent/catalyst; Temperature; Autoclave;94.1%
With permanganate(VII) ion
96440-05-0

2-chloro-3-ethylpyridine

2942-59-8

2-chloronicotinic acid

Conditions
ConditionsYield
With sodium acetate; ozone; acetic acid at 20℃; for 5h; Temperature; Reagent/catalyst;98%
With potassium permanganate; water

2-chloro-3-isopropylpyridine

2942-59-8

2-chloronicotinic acid

Conditions
ConditionsYield
With iron(II) acetate; ozone; acetic acid at 100℃; Reagent/catalyst; Temperature;98%

2-chloro-3-(dichloromethyl)-pyridine

2942-59-8

2-chloronicotinic acid

Conditions
ConditionsYield
With 10% Ru/C; oxygen; sodium carbonate In tetrahydrofuran at 140℃; under 22502.3 - 30003 Torr; for 4h; Catalytic behavior; Temperature; Solvent; Pressure; Autoclave; Green chemistry;95.4%
1452-94-4

ethyl 2-chloronicotinate

2942-59-8

2-chloronicotinic acid

Conditions
ConditionsYield
With sodium hydroxide at 80℃; for 2h; Temperature;95.2%
With sodium hydroxide In methanol; water at 75℃;
89581-84-0

2-chloro-3-(chloromethyl)pyridine

64-19-7

acetic acid

2942-59-8

2-chloronicotinic acid

Conditions
ConditionsYield
With sodium nitrite In dimethyl sulfoxide at 20℃; for 8h; Temperature; Solvent;95.1%
49609-84-9

2-Chloronicotinoyl chloride

2942-59-8

2-chloronicotinic acid

Conditions
ConditionsYield
With water at 0 - 5℃; for 0.5h; pH=1.5; Alkaline conditions; Green chemistry;92%
In water
89-00-9

Pyridine-2,3-dicarboxylic acid

2942-59-8

2-chloronicotinic acid

Conditions
ConditionsYield
With potassium permanganate; chlorine In water at 85 - 90℃; Reagent/catalyst; Solvent;91%
72648-12-5

2-chloro-3-(trichloromethyl)-pyridine

2942-59-8

2-chloronicotinic acid

Conditions
ConditionsYield
With sulfuric acid; lithium acetate; water; silver; fluorosulphonic acid; acetic acid In methanol at 55 - 60℃; Electrolysis;91%
With water
59-67-6

nicotinic acid

2942-59-8

2-chloronicotinic acid

Conditions
ConditionsYield
Stage #1: nicotinic acid With dihydrogen peroxide; acetic acid In toluene Reflux;
Stage #2: With phosphorus pentachloride; trichlorophosphate In toluene Reflux;
90%
Multi-step reaction with 3 steps
1: molybdic acid; dihydrogen peroxide / water / 3 h / 92 - 95 °C / Green chemistry
2: trichlorophosphate; triethylamine / 6 h / 10 - 100 °C / Green chemistry
3: water / 0.5 h / 0 - 5 °C / pH 1.5 / Alkaline conditions; Green chemistry
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Chemistry

Molecular structure of 2-Chloronicotinic acid (CAS NO.2942-59-8) is:

Product Name: 2-Chloronicotinic acid
CAS Registry Number: 2942-59-8
IUPAC Name: 2-chloropyridine-3-carboxylic Acid
Molecular Weight: 157.55446 [g/mol]
Molecular Formula: C6H4ClNO2
XLogP3-AA: 1.3
H-Bond Donor: 1
H-Bond Acceptor: 3
EINECS: 220-937-0
Melting Point: 176-178 °C (dec.)(lit.)
Index of Refraction: 1.59
Molar Refractivity: 36.16 cm3
Molar Volume: 107.1 cm3
Surface Tension: 61 dyne/cm
Density: 1.47 g/cm3
Flash Point: 145.4 °C
Enthalpy of Vaporization: 58.93 kJ/mol
Boiling Point: 316.8 °C at 760 mmHg
Vapour Pressure: 0.000168 mmHg at 25 °C
Product Categories: blocks;Carboxes;Pyridines;Pyridine;Acids and Derivatives;Heterocycles;Pyridines, Pyrimidines, Purines and Pteredines;Carboxylic Acids;Organic acids;Diflufenican;Chloropyridines;Halopyridines;Carboxylic Acids 
Canonical SMILES: C1=CC(=C(N=C1)Cl)C(=O)O
InChI: InChI=1S/C6H4ClNO2/c7-5-4(6(9)10)2-1-3-8-5/h1-3H,(H,9,10)
InChIKey: IBRSSZOHCGUTHI-UHFFFAOYSA-N

Uses

 2-Chloronicotinic acid (CAS NO.2942-59-8) can be used as an intermediate for agrochemicals, feed additives, pharmaceuticals and animal food enrichments.

Safety Profile

Safty information about 2-Chloronicotinic acid (CAS NO.2942-59-8) is: 
Hazard Codes: IrritantXi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 22-24/25-37/39-26-36 
S22:Do not breathe dust. 
S24/25:Avoid contact with skin and eyes. 
S37/39:Wear suitable gloves and eye/face protection. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3
Hazard Note: Irritant
TSCA: T
HazardClass: IRRITANT
HS Code: 29333999

Specification

 2-Chloronicotinic acid , its cas register number is 2942-59-8. It also can be called 2-Chloro-3-pyridinecarboxylic acid ; Nicotinic acid, 2-chloro- ; 3-Pyridinecarboxylic acid, 2-chloro- .It is a white to cream powder.