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Name	2,4-Dichlorotoluene	EINECS	202-445-8
CAS No.	95-73-8	Density	1.242 g/cm³
PSA	0.00000	LogP	3.30180
Solubility	immiscible with water	Melting Point	-14 °C
Formula	C₇H₆Cl₂	Boiling Point	198.6 °C at 760 mmHg
Molecular Weight	161.031	Flash Point	79.4 °C
Transport Information	UN 2810	Appearance	clear colorless liquid
Safety	23-24/25	Risk Codes	36/37/38
Molecular Structure		Hazard Symbols	Xi
Synonyms	Toluene,2,4-dichloro- (8CI);1,3-Dichloro-4-methylbenzene;2,4-Dichloro-1-methylbenzene;	Article Data	46

2,4-Dichlorotoluene Synthetic route

: 1777-82-8
(2,4-dichlorophenyl)methanol

: 95-73-8
2,4-dichlorotoluene

Conditions

Conditions	Yield
With 2-pentanol; ReOCl3(SMe2)(OPPh3) for 17h; Green chemistry; chemoselective reaction;	98%
Multi-step reaction with 3 steps 1: diethylamino-sulfur trifluoride / dichloromethane / 1 h / -78 - 20 °C 2: tris(pentafluorophenyl)borate / 1,2-dichloro-ethane / 0.08 h / 20 °C / Glovebox; Schlenk technique 3: sodium tetrahydroborate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 18 h / 20 °C View Scheme

: 1193-72-2
1-bromo-2,4-dichlorobenzene

: 544-97-8
dimethyl zinc(II)

: 95-73-8
2,4-dichlorotoluene

Conditions

Conditions	Yield
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In 1,4-dioxane for 2h; Heating;	91%

: 874-42-0
2,4-dichlorobenzaldeyhde

: 95-73-8
2,4-dichlorotoluene

Conditions

Conditions	Yield
With 2-pentanol; ReOCl3(SMe2)(OPPh3) for 17h; Green chemistry; chemoselective reaction;	91%

: 95-80-7
4-methylbenzene-1,3-diamine

: 95-73-8
2,4-dichlorotoluene

Conditions

Conditions	Yield
With potassium bisulfite; potassium chloride; cobalt(II) chloride In water at 70 - 75℃; for 2.33333h; Concentration; Temperature;	85%
With nitrosylsulfuric acid; acetic acid Behandlung der erhaltenen Diazoniumsalz-Loesung mit CuCl in konz. wss. HCl;
With hydrogenchloride; copper dichloride; sodium nitrite

: 59293-67-3
2,4-dichlorobenzyl mercaptan

A: 95-73-8
2,4-dichlorotoluene

B: 6295-41-6
bis-(2,4-dichloro-benzyl)-sulfide

C: 874-42-0
2,4-dichlorobenzaldeyhde

D: 1,2-bis(2',4'-dichlorophenyl)ethane

Conditions

Conditions	Yield
With tetrafluoroboric acid; triiron dodecarbonyl In benzene 1.) RT, 4 h; 2.) 60 deg C;	A 74% B 2% C 3% D 10%

: 106-43-4
para-chlorotoluene

: 95-73-8
2,4-dichlorotoluene

Conditions

Conditions	Yield
With aluminum (III) chloride; iron(III) chloride; chlorine; calcium chloride; zinc(II) chloride In water at 39℃; for 18h; Temperature; Molecular sieve; Autoclave; Inert atmosphere;	68.9%
With chlorine at 40 - 41℃; for 0.5h; Temperature;	68%
With perchloric acid; trichloroisocyanuric acid In water; acetic acid at 30℃; Rate constant; Thermodynamic data; Ea, ΔH(excit.), ΔS(excit.);

: 50-84-0
2,4 dichlorobenzoic acid

A: 1777-82-8
(2,4-dichlorophenyl)methanol

B: 95-73-8
2,4-dichlorotoluene

Conditions

Conditions	Yield
With tricarbonyl(η(4)-cycloocta-1,5-diene)iron; phenylsilane In tetrahydrofuran at 20℃; for 24h; Inert atmosphere; UV-irradiation; chemoselective reaction;	A 67% B n/a

: 59293-67-3
2,4-dichlorobenzyl mercaptan

: 95-73-8
2,4-dichlorotoluene

Conditions

Conditions	Yield
dicobalt octacarbonyl In water; benzene at 185 - 190℃; under 46543.3 Torr;	63%

: 108-88-3
toluene

A: 106-43-4
para-chlorotoluene

B: 95-49-8
2-methylchlorobenzene

C: 95-73-8
2,4-dichlorotoluene

Conditions

Conditions	Yield
With hydrogenchloride; sodium hypochlorite In water at 20℃; Product distribution; Further Variations:; Temperatures; molar quantity of reagents; Chlorination; oxidative chlorination;	A 29% B 63% C 3.5%
With oxone; potassium chloride In acetonitrile at 20℃; for 24h; Product distribution; Further Variations:; Reagents ratio;
With sulfuric acid; [BMIM]Cl; chlorine at 70℃; for 8h;

: C32H24Cl2N(1+)*BF4(1-)

A: 95-73-8
2,4-dichlorotoluene

B: 60211-56-5
2,4-dichlorobenzyl fluoride

Conditions

Conditions	Yield
at 180℃; under 0.5 Torr; for 3h;	A 20% B 45%

2,4-Dichlorotoluene Chemical Properties

The Molecular Structure of 2,4-Dichlorotoluene (CAS NO.95-73-8):

Empirical Formula: C₇H₆Cl₂
Molecular Weight: 161.0285
Index of Refraction: 1.543
Molar Refractivity: 40.86 cm³
Molar Volume: 129.6 cm³
Surface Tension: 35.6 dyne/cm
Density: 1.242 g/cm³
Flash Point: 79.4 °C
Enthalpy of Vaporization: 41.71 kJ/mol
Boiling Point: 198.6 °C at 760 mmHg
Vapour Pressure: 0.502 mmHg at 25°C
IUPAC Name: 2,4-dichloro-1-methylbenzene
Appearance: clear colorless liquid
Product Categories: Organics;Aryl;C7;Halogenated Hydrocarbons
Synonyms: 2,4-Dichlorotoluene ; 2,4-Dichloro-1-methylbenzene ; 4-05-00-00815 (Beilstein Handbook Reference) ; BRN 1931691 ; Benzene, 2,4-dichloro-1-methyl- ; EINECS 202-445-8 ; HSDB 2567 ; Toluene, 2,4-dichloro- ; Benzene, 2,4-dichloro-1-methyl- ; Toluene, 2,4-dichloro-

2,4-Dichlorotoluene Uses

2,4-Dichlorotoluene (CAS NO.95-73-8) is used as raw materials for organic synthesis. In medicine industry, 2,4-Dichlorotoluene (CAS NO.95-73-8) is used as high boiling point solvents and for the synthesis of chlorinated-nitrated pesticides and medicinal products. For pesticide intermediates, It is used for manufacture 2,4-dichloro-benzyl chloride , 2,4-Dichlorobenzoyl chloride for synthesis and 2,4-dichloro-benzoic acid .

2,4-Dichlorotoluene Production

Through 2.3-chloro-4-toluidine and sodium nitrate's diazo reaction, then through the sandmyer-reaction with copper chloride, we can obtain 2,4-Dichlorotoluene (CAS NO.95-73-8).

2,4-Dichlorotoluene Toxicity Data With Reference

1.	orl-rat LD50:4600 mg/kg	GISAAA Gigiena i Sanitariya. 53 (2)(1988),80.
2.	orl-mus LD50:2900 mg/kg	GISAAA Gigiena i Sanitariya. 53 (2)(1988),80.
3.	orl-gpg LD50:5 g/kg	GISAAA Gigiena i Sanitariya. 53 (2)(1988),80.

2,4-Dichlorotoluene Consensus Reports

Reported in EPA TSCA Inventory.

2,4-Dichlorotoluene Safety Profile

Hazard Codes: Irritant Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 23-24/25
S23: Do not breathe vapour
S24/25: Avoid contact with skin and eyes
RIDADR: UN 2810
WGK Germany: 2
RTECS: XT0730000
Hazard Note: Harmful
HazardClass: 9
PackingGroup: III
HS Code: 29036990

2,4-Dichlorotoluene Standards and Recommendations

ASSAY: 99.0% min
ISOMER IMPURITY: 1.0% max

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