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Cas Database |
| Name |
2,3,5,6-Tetrachloropyridine |
EINECS | 219-283-9 |
| CAS No. | 2402-79-1 | Density | 1.662 g/cm3 |
| PSA | 12.89000 | LogP | 3.69520 |
| Solubility | N/A | Melting Point |
90.5 °C |
| Formula | C5HCl4N | Boiling Point | 253.7 °C at 760 mmHg |
| Molecular Weight | 216.882 | Flash Point | 131.7 °C |
| Transport Information | N/A | Appearance | N/A |
| Safety | 26-36/37/39-60-61-36 | Risk Codes | 20/21/22-36/37/38-51/53 |
| Molecular Structure |
|
Hazard Symbols |
 Xi
|
| Synonyms |
NSC 2009; |
Article Data | 40 |
2,3,5,6-Tetrachloropyridine Synthetic route
Conditions
| Conditions | Yield |
|---|---|
| Stage #1: 2,3,4,5,6-pentachloropyridine With manganese; ammonium acetate In ethanol; water at 40℃; for 6h; Stage #2: With ammonia In ethanol; water at 65℃; for 1h; pH=8 - 9; Concentration; Temperature; | 99.5% |
| With ammonium chloride; zinc In acetonitrile at 80℃; for 3h; Reagent/catalyst; Solvent; Temperature; Green chemistry; | 88.4% |
| With ammonium chloride; dimethyl methane phosphonate; zinc In water for 0.5h; Yield given; |
Conditions
| Conditions | Yield |
|---|---|
| With hydrogen; potassium carbonate at 200℃; under 15001.5 Torr; for 2h; Autoclave; | 99.2% |
- 2176-62-7
2,3,4,5,6-pentachloropyridine
A
- 6515-09-9
2,3,6-trichloropyridine
B
- 16063-70-0
2,3,5-trichloropyridine
C
- 2402-79-1
2,3,5,6-tetrachloropyridine
Conditions
| Conditions | Yield |
|---|---|
| With ammonium chloride; dimethyl methane phosphonate; zinc In water at 85 - 90℃; Product distribution; other ammonium salts; other methylphosphonates/phosphates; | A 0.9% B 1% C 97.6% |
- 30332-35-5
tetrachloro-4-iodopyridine
- 2402-79-1
2,3,5,6-tetrachloropyridine
Conditions
| Conditions | Yield |
|---|---|
| In diethyl ether for 19h; Irradiation; | 87% |
| Multi-step reaction with 2 steps 1: 4 percent / copper bronze / dimethylformamide / 150 °C 2: 3 percent Chromat. / copper bronze / dimethylformamide / 20 h / 150 °C View Scheme |
- 41797-97-1
methyl 4-cyano-2,2,4-trichlorobutyrate
- 2402-79-1
2,3,5,6-tetrachloropyridine
Conditions
| Conditions | Yield |
|---|---|
| 79% |
- 27425-94-1
tetrachloro-4-pyridylcopper
- 98-88-4
benzoyl chloride
A
- 2402-79-1
2,3,5,6-tetrachloropyridine
B
- 18613-89-3
4-benzoyltetrachloropyridine
Conditions
| Conditions | Yield |
|---|---|
| In N,N-dimethyl-formamide for 0.5h; Heating; | A 9% B 72% |
- 23995-94-0
4-Bromo-2,3,5,6-tetrachloropyridine
A
- 2402-79-1
2,3,5,6-tetrachloropyridine
B
- 14121-36-9
2,3,4,6-Tetrachloropyridine
C
- 2176-62-7
2,3,4,5,6-pentachloropyridine
D
- 18725-60-5
octachloro-4,4'-bipyridyl
Conditions
| Conditions | Yield |
|---|---|
| With Isopropylbenzene; copper In N,N-dimethyl-formamide at 150℃; for 1h; Further byproducts given; | A 63% B 15% C 16% D 17% |
- 23995-94-0
4-Bromo-2,3,5,6-tetrachloropyridine
A
- 2402-79-1
2,3,5,6-tetrachloropyridine
B
- 14121-36-9
2,3,4,6-Tetrachloropyridine
D
- 18725-60-5
octachloro-4,4'-bipyridyl
Conditions
| Conditions | Yield |
|---|---|
| With copper; benzoyl chloride In N,N-dimethyl-formamide at 150℃; for 0.5h; | A 61% B 24% C n/a D 15% |
- 30332-35-5
tetrachloro-4-iodopyridine
A
- 2402-79-1
2,3,5,6-tetrachloropyridine
B
- 2176-62-7
2,3,4,5,6-pentachloropyridine
C
- 18725-60-5
octachloro-4,4'-bipyridyl
Conditions
| Conditions | Yield |
|---|---|
| With copper In N,N-dimethyl-formamide at 150℃; | A 22% B 4% C 52% |
- 23995-94-0
4-Bromo-2,3,5,6-tetrachloropyridine
A
- 2402-79-1
2,3,5,6-tetrachloropyridine
B
- 14121-36-9
2,3,4,6-Tetrachloropyridine
C
- 2176-62-7
2,3,4,5,6-pentachloropyridine
E
- 18725-60-5
octachloro-4,4'-bipyridyl
Conditions
| Conditions | Yield |
|---|---|
| With para-xylene; copper In N,N-dimethyl-formamide at 150℃; for 1h; Product distribution; Mechanism; the similar reaction without p-xylene; in presence cumene, benzoyl chloride instead p-xylene; other reagent (CuCl); other polychloroiodoarenes; tetrahalohenopyridylcopper intermediate; evidence against free radical or pyridyne intermediates; | A 42% B 5% C 15% D 4% E 18% |
...Expand
2,3,5,6-Tetrachloropyridine Chemical Properties
Molecular Formula:C5HCl4N
Molar mass:216.88014g/mol
Structure of 2,3,5,6-Tetrachloropyridine(2402-79-1):
Synonyms of 2,3,5,6-Tetrachloropyridine(2402-79-1):Pyridine, 2,3,5,6-tetrachloro-;Tetrapyridine
Density:1.662 g/cm3
Flash Point:131.7 °C
Boiling Point:253.7 °C at 760 mmHg
Index of Refraction:1.588
Vapour Pressure:0.0288 mmHg at 25°C
Melting point:90.5 °C
Molar mass:216.88014g/mol
Structure of 2,3,5,6-Tetrachloropyridine(2402-79-1):
Synonyms of 2,3,5,6-Tetrachloropyridine(2402-79-1):Pyridine, 2,3,5,6-tetrachloro-;Tetrapyridine
Density:1.662 g/cm3
Flash Point:131.7 °C
Boiling Point:253.7 °C at 760 mmHg
Index of Refraction:1.588
Vapour Pressure:0.0288 mmHg at 25°C
Melting point:90.5 °C
2,3,5,6-Tetrachloropyridine Uses
2,3,5,6-Tetrachloropyridine(2402-79-1) can be used as the intermediate of medicine and pesticide.
2,3,5,6-Tetrachloropyridine(2402-79-1) can be used as the main raw material of synthetic herbicides: picloram,too .
2,3,5,6-Tetrachloropyridine Toxicity Data With Reference
| 1. | ipr-mus LD50:1150 mg/kg | TXAPA9 Toxicology and Applied Pharmacology. 11 (1967),361. |
2,3,5,6-Tetrachloropyridine Consensus Reports
Reported in EPA TSCA Inventory.
2,3,5,6-Tetrachloropyridine Safety Profile
Moderately toxic by intraperitoneal route. When heated to decomposition it emits very toxic fumes of Cl− and NOx.
Hazard Codes:Xi
Risk Statements:
20: Harmful by inhalation
21: Harmful in contact with skin
22: Harmful if swallowed
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
51: Toxic to aquatic organisms
53: May cause long-term adverse effects in the aquatic environment
Safety Statements:
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
37: Wear suitable gloves
39: Wear eye/face protection
60: This material and/or its container must be disposed of as hazardous waste
61: Avoid release to the environment. Refer to special instructions safety data sheet
Hazard Codes:Xi
Risk Statements:
20: Harmful by inhalation
21: Harmful in contact with skin
22: Harmful if swallowed
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
51: Toxic to aquatic organisms
53: May cause long-term adverse effects in the aquatic environment
Safety Statements:
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
37: Wear suitable gloves
39: Wear eye/face protection
60: This material and/or its container must be disposed of as hazardous waste
61: Avoid release to the environment. Refer to special instructions safety data sheet
2,3,5,6-Tetrachloropyridine Specification
Product Categories of 2,3,5,6-Tetrachloropyridine(2402-79-1):Halides;Pyridines;Halopyridines;Chloropyridines;FINE Chemical & INTERMEDIATES
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2,3,5,6-Tetrachloropyridine
