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Name	3,5-Dichloropyridine	EINECS	219-537-9
CAS No.	2457-47-8	Density	1.388 g/cm³
PSA	12.89000	LogP	2.38840
Solubility	N/A	Melting Point	65-67 °C
Formula	C₅H₃Cl₂N	Boiling Point	173.7 °C at 760 mmHg
Molecular Weight	147.992	Flash Point	73.4 °C
Transport Information	N/A	Appearance	White to yellow powder
Safety	26-39-36	Risk Codes	22-37/38-41-36/37/38
Molecular Structure		Hazard Symbols	Xn, Xi
Synonyms	NSC 60546;	Article Data	22

3,5-Dichloropyridine Synthetic route

: 15177-57-8
3,5-dicholoropyridine N-oxide

: 2457-47-8
3,5-dichloropyridine

Conditions

Conditions	Yield
With 2,3-dimethyl-2,3-butane diol; bis(N,N-dimethylformamide)dichloridodioxidomolybdenum(VI) In N,N-dimethyl acetamide at 130℃; Microwave irradiation; Sealed tube; Green chemistry; chemoselective reaction;	95%

: 16063-70-0
2,3,5-trichloropyridine

: 2457-47-8
3,5-dichloropyridine

Conditions

Conditions	Yield
With acetic acid; zinc In water at 65 - 95℃; for 1 - 5.25h; Product distribution / selectivity;	87.3%

: 99749-00-5
lithioacetonitrile

: 153463-65-1
3,5-dichloropyridine-4-carbonitrile

A: 2457-47-8
3,5-dichloropyridine

B: 3,5-dichloro-4-pyridylacetonitrile

Conditions

Conditions	Yield
In tetrahydrofuran at 20℃; for 0.0833333h;	A n/a B 73%

: 2176-62-7
2,3,4,5,6-pentachloropyridine

: 2457-47-8
3,5-dichloropyridine

Conditions

Conditions	Yield
With sodium acetate; acetic acid; zinc at 100℃; for 5.5h; Product distribution / selectivity;	65%
With acetic acid; zinc In water at 81 - 82℃; for 30h; Product distribution / selectivity;	44.6 %Chromat.
With acetic acid; zinc In 1,4-dioxane; water at 81 - 82℃; for 29h; Product distribution / selectivity;	60.8 %Chromat.

: 221615-75-4
1-(6-methyl-3-pyridinyl)-2-[4-(methylsulfonyl)phenyl]ethanone

: chloromalonaldehyde

A: 2457-47-8
3,5-dichloropyridine

B: 202409-33-4
etoricoxib

C: 1-(6-methyl-3-pyridinyl)-3-(4-methanesulfonylphenyl)furan

Conditions

Conditions	Yield
With ammonium acetate In propionic acid at 125℃;	A n/a B 62% C 15%

: 917-54-4
methyllithium

: 153463-65-1
3,5-dichloropyridine-4-carbonitrile

A: 100868-46-0
3,5-dichloro-4-picoline

B: 2457-47-8
3,5-dichloropyridine

C: 3,5-dichloro-4-pyridylacetonitrile

D: 402561-62-0
methyl 3,5-dichloro-4-pyridyl imine

Conditions

Conditions	Yield
In tetrahydrofuran at -75℃; for 0.333333h;	A 12% B 12% C 9% D 57%

...Expand

: 917-54-4
methyllithium

: 153463-65-1
3,5-dichloropyridine-4-carbonitrile

A: 100868-46-0
3,5-dichloro-4-picoline

B: 2457-47-8
3,5-dichloropyridine

C: 3,5-dichloro-4-pyridylacetonitrile

Conditions

Conditions	Yield
In tetrahydrofuran at 20℃; for 0.333333h;	A 3% B 45% C 32%

: 16063-70-0
2,3,5-trichloropyridine

A: 2457-47-8
3,5-dichloropyridine

B: N,N'-bis(3,5-dichloro-2-pyridyl)hydrazine

Conditions

Conditions	Yield
With hydrazine hydrate In dimethyl sulfoxide Heating;	A 18% B 28%

: 109-00-2
3-HYDROXYPYRIDINE

A: 626-60-8
3-Chloropyridine

B: 2457-47-8
3,5-dichloropyridine

Conditions

Conditions	Yield
With phosphorus pentachloride

: 4454-05-1
2-methoxy-3,4-dihydro-2H-pyran

A: 626-60-8
3-Chloropyridine

B: 2457-47-8
3,5-dichloropyridine

Conditions

Conditions	Yield
With chlorine Eintragen des Reaktionsgemisches in eine heisse wss. Loesung von Ammoniumchlorid und Eisen(III)-chlorid;
With chlorine Eintragen des Reaktionsgemisches in eine heisse wss. Loesung von Ammoniumchlorid und Eisen(III)-chlorid;

3,5-Dichloropyridine Chemical Properties

3,5-Dichloropyridine (2457-47-8) is also named as Dichloropyridine,98% ; 3,5-Dichloroypyridine ; 3,5-Dichloropyridine,97% ; Pyridine, 3,5-dichloro- ; WLN: T6NJ CG EG ; CCRIS 1719 ; D73804_ALDRICH ; NSC60546 ; EINECS 219-537-9 ,and so on.
3,5-Dichloropyridine (2457-47-8) is usually white to yellow powder.

IUPAC Name: 3,5-dichloropyridine
CAS: 2457-47-8
Molecular Formula: C₅H₃Cl₂N
Molecular Weight: 147.99
Molecular structure:
EINECS: 219-537-9
Melting point: 65-67°C
BRN: 1973
ACD/LogD (pH 5.5): 2.43
ACD/LogD (pH 7.4): 2.43
ACD/BCF (pH 5.5): 41.03
ACD/BCF (pH 7.4): 41.03
ACD/KOC (pH 5.5): 496.91
ACD/KOC (pH 7.4): 496.92
H bond acceptors: 1
H bond donors: 0
Freely Rotating Bonds: 0
Index of Refraction: 1.553
Molar Refractivity: 34.13 cm³
Molar Volume: 106.5 cm³
Polarizability: 13.53 10^-24cm³
Surface Tension: 43.1 dyne/cm
Density: 1.388 g/cm³
Flash Point: 73.4 °C
Enthalpy of Vaporization: 39.32 kJ/mol
Boiling Point: 173.7 °C at 760 mmHg
Vapour Pressure: 1.67 mmHg at 25°C

3,5-Dichloropyridine Uses

3,5-Dichloropyridine (2457-47-8) is commonly used as pharmaceutical intermediate and pesticide intermediate.

3,5-Dichloropyridine Toxicity Data With Reference

RTECS: US8575000

mouse

LD50

intraperitoneal

1180mg/kg (1180mg/kg)

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: ANTIPSYCHOTIC

LIVER: FATTY LIVER DEGERATION

Toxicology and Applied Pharmacology. Vol. 11, Pg. 361, 1967.

3,5-Dichloropyridine Safety Profile

Hazard Codes: Xn,Xi
Risk Statements: 22-37/38-41-36/37/38 (22: Harmful if swallowed 37/38: Irritating to respiratory system and skin 41: Risk of serious damage to eyes 36/37/38: Irritating to eyes, respiratory system and skin)
Safety Statements: 26-39-36 (26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 39: Wear eye/face protection 36: Wear suitable protective clothing)
Hazard Note: Irritant

3,5-Dichloropyridine Specification

Removal in wastewater treatment of 3,5-Dichloropyridine (2457-47-8) can be stated as follows:
Total removal:3.51 percent
Total biodegradation:0.10 percent
Total sludge adsorption:3.17 percent
Total to Air:0.24 percent
(using 10000 hr Bio P,A,S)

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