ChemicalBook >> CAS DataBase List >>2,4-DICHLORO-5-NITROPYRIDINE

2,4-DICHLORO-5-NITROPYRIDINE

CAS No.
4487-56-3
Chemical Name:
2,4-DICHLORO-5-NITROPYRIDINE
Synonyms
oro-5-nitropyridine;4-DICHLORO-5-NITROPYRIDINE;2,4-DICHLORO-5-NITROPYRIDINE;2,4-DIHYDROXY-5-NITROPYRIDINE;5-nitro-2,4-dichloro pyridine;Pyridine, 2,4-dichloro-5-nitro-;2,4-Dichloro-5-nitropyridine >2,4-Dichloro-5-nitropyridine ,95%;2,4-Dichloro-5-Nitropyridine(WXC02234);4-chloro-5-methyl-3-nitropyridin-2-amine
CBNumber:
CB0231226
Molecular Formula:
C5H2Cl2N2O2
Molecular Weight:
192.99
MDL Number:
MFCD07368834
MOL File:
4487-56-3.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-24 14:59:17
Product description Number Pack Size Price
2,4-Dichloro-5-nitropyridine >98.0%(GC) D4752 1g $97
2,4-DICHLORO-5-NITROPYRIDINE 97% 25049 1G $24
2,4-DICHLORO-5-NITROPYRIDINE 97% 25049 5G $59
2,4-DICHLORO-5-NITROPYRIDINE 97% 25049 25G $230
2,4-Dichloro-5-nitropyridine D436130 5g $605
More product size

2,4-DICHLORO-5-NITROPYRIDINE Properties

Melting point 42.0 to 46.0 °C
Boiling point 282.3±35.0 °C(Predicted)
Density 1.629±0.06 g/cm3(Predicted)
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility soluble in Methanol
form powder to crystal
pka -2.49±0.10(Predicted)
color Light orange to Yellow to Green
InChI InChI=1S/C5H2Cl2N2O2/c6-3-1-5(7)8-2-4(3)9(10)11/h1-2H
InChIKey RZVJQUMDJUUBBF-UHFFFAOYSA-N
SMILES C1(Cl)=NC=C([N+]([O-])=O)C(Cl)=C1
CAS DataBase Reference 4487-56-3

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS06
Signal word  Danger
Hazard statements  H301
Precautionary statements  P301+P310
Hazard Codes  Xi,T
Risk Statements  25
Safety Statements  45
RIDADR  2811
HazardClass  6.1
PackingGroup 
HS Code  2933399990

2,4-DICHLORO-5-NITROPYRIDINE price More Price(35)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical D4752 2,4-Dichloro-5-nitropyridine >98.0%(GC) 4487-56-3 1g $97 2026-04-30 Buy
AstaTech 25049 2,4-DICHLORO-5-NITROPYRIDINE 97% 4487-56-3 1G $24 2026-04-30 Buy
AstaTech 25049 2,4-DICHLORO-5-NITROPYRIDINE 97% 4487-56-3 5G $59 2026-04-30 Buy
AstaTech 25049 2,4-DICHLORO-5-NITROPYRIDINE 97% 4487-56-3 25G $230 2026-04-30 Buy
TRC D436130 2,4-Dichloro-5-nitropyridine 4487-56-3 5g $605 2021-12-16 Buy
Product number Packaging Price Buy
D4752 1g $97 Buy
25049 1G $24 Buy
25049 5G $59 Buy
25049 25G $230 Buy
D436130 5g $605 Buy

2,4-DICHLORO-5-NITROPYRIDINE Chemical Properties,Uses,Production

Chemical Properties

Light yellow needles

Uses

2,4-Dichloro-5-nitropyridine is used in the synthesis of potent and selective stearoyl-CoA desaturase (SCD) inhibitors. Also used in preparation of Rho-Kinase inhibitors displaying antihypertensive activity.

Synthesis

4-Chloro-5-nitro-2-hydroxypyridine

850663-54-6

2,4-DICHLORO-5-NITROPYRIDINE

4487-56-3

Step 3. Synthesis of 2,4-dichloro-5-nitropyridine: The product of step 2, 2-hydroxy-4-chloro-5-nitropyridine (40.0 g, 229 mmol), was suspended in toluene (300 mL), and phosphorus oxychloride (POCl3, 65 mL, 697 mmol) was added dropwise over a period of 10 min. Subsequently, the reaction mixture was heated to reflux and maintained for 6 hours. Upon completion of the reaction, the mixture was cooled to 60 °C and stirred continuously at this temperature overnight. The non-homogeneous reaction mixture was cooled to room temperature and subsequently concentrated under reduced pressure to remove the solvent. The residue was carefully adjusted to an alkaline pH with saturated aqueous potassium carbonate (K2CO3). extraction was carried out with ethyl acetate (EtOAc), the organic phases were combined and washed sequentially with water and saturated brine. The organic layer was dried over anhydrous sodium sulfate (Na2SO4), filtered and the filtrate was concentrated to give the crude product as an oil. Purification by silica gel column chromatography (eluent: hexane solution of 50% ethyl acetate) afforded the title compound 2,4-dichloro-5-nitropyridine (32.5 g, 74% yield) as an orange oil, which solidified to a solid on standing. Mass spectrometry (electrospray positive ion mode, ES+) showed the molecular ion peak m/e 194 [M+H]+.

References

[1] Journal of Medicinal Chemistry, 2007, vol. 50, # 1, p. 2 - 5
[2] Patent: WO2005/37197, 2005, A2. Location in patent: Page/Page column 84
[3] Journal of Heterocyclic Chemistry, 2014, vol. 51, # 2, p. 404 - 410
[4] Patent: EP2818472, 2014, A1. Location in patent: Paragraph 0126; 0128

7321-93-9
4487-56-3
Synthesis of 2,4-DICHLORO-5-NITROPYRIDINE from 4,6-DICHLORO-PYRIDIN-3-YLAMINE
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View Lastest Price from 2,4-DICHLORO-5-NITROPYRIDINE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,4-DICHLORO-5-NITROPYRIDINE pictures 2025-11-18 2,4-DICHLORO-5-NITROPYRIDINE
4487-56-3
US $1.10 / g 1g 99.00% 100 Tons min Dideu Industries Group Limited
2,4-Dichloro-5-nitropyridine pictures 2025-09-25 2,4-Dichloro-5-nitropyridine
4487-56-3
US $200.00-1.00 / KG 1KG 99%, 99.5% Sublimated g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd
2,4-DICHLORO-5-NITROPYRIDINE pictures 2025-04-04 2,4-DICHLORO-5-NITROPYRIDINE
4487-56-3
US $0.00-0.00 / kg 1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
2,4-DICHLORO-5-NITROPYRIDINE 2,4-DIHYDROXY-5-NITROPYRIDINE Pyridine, 2,4-dichloro-5-nitro- 2,4-Dichloro-5-nitropyridine ,95% 5-nitro-2,4-dichloro pyridine 4-chloro-5-methyl-3-nitropyridin-2-amine 2,4-Dichloro-5-Nitropyridine(WXC02234) 2,4-Dichloro-5-nitropyridine > oro-5-nitropyridine 2,4-DICHLORO-5-NITROPYRIDINE ISO 9001:2015 REACH 4-DICHLORO-5-NITROPYRIDINE 4487-56-3