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2,6-Dichlorobenzoxazole

2,6-Dichlorobenzoxazole structure

CAS No:
3621-82-7
Formula:
C7H3Cl2NO
Chemical Name:
2,6-Dichlorobenzoxazole
Synonyms:
Benzoxazole,2,6-dichloro-;2,6-Dichlorobenzoxazole;2,6-Dichlorobenzo[d]oxazole;2,6-Dichloro-1,3-benzooxazole;2,6-Dichloro-1,3-benzoxazole
Categories:
Agrochemicals > Pesticide Intermediates

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2,6-Dichlorobenzoxazole Basic Attributes

Molecular Weight：

188.01

Exact Mass：

188.01

EC Number：

222-818-9

DSSTox ID：

DTXSID60189769

HScode：

2934999090

Characteristics

PSA：

XLogP3：

3.8

Appearance：

white crystal

Density：

1.5±0.1 g/cm3

Melting Point：

56-57 °C

Boiling Point：

110°C/13mmHg(lit.)

Flash Point：

100.7±19.8 °C

Refractive Index：

1.636

Safety Information

hazard class code：

safety instructions：

S26-S36/37/39

Marks：

Precautionary statement(s)：

P260, P261, P264, P270, P272, P273, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P322, P330, P333+P313, P337+P313, P361, P363, P391, P405, P501

Hazard Statements：

H302

GHS Classification：

|Danger|H302 (98.65%): Harmful if swallowed [Warning Acute toxicity, oral]|P260, P261, P264, P270, P272, P273, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P322, P330, P333+P313, P337+P313, P361, P363, P391, P405, and P501|Aggregated GHS information provided by 74 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

2,6-Dichlorobenzoxazole Use and Manufacturing

Methods of Manufacturing

The preparation method is to add 2-benzoxazolone and chlorobenzene into the reaction kettle, pass in chlorine gas, the temperature rises gradually, the reaction time is 3h, the reaction temperature is 40～130℃, the amount of chlorine gas is controlled, and the hydrogen chloride is driven away after the reaction is over With excess chlorine gas, 2-hydroxy-6-chlorobenzoxazole is obtained, and then heated and reacted with phosphorus trichloride to obtain 2, 6-dichlorobenzoxazole, and the solvent is removed from chlorobenzene to obtain the finished product.

Uses

Pesticide intermediates.

Computed Properties

Molecular Weight:188.01
XLogP3:3.8
Hydrogen Bond Acceptor Count:2
Exact Mass:186.9591691
Monoisotopic Mass:186.9591691
Topological Polar Surface Area:26
Heavy Atom Count:11
Complexity:155
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Hydrochloric acid

1,2-Dichlorobenzene

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