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2-Chloro-4-cyanopyridine

2-Chloro-4-cyanopyridine structure

CAS No:
33252-30-1
Formula:
C6H3ClN2
Chemical Name:
2-Chloro-4-cyanopyridine
Synonyms:
4-Pyridinecarbonitrile,2-chloro-;Isonicotinonitrile,2-chloro-;2-Chloro-4-pyridinecarbonitrile;2-Chloroisonicotinonitrile;2-Chloro-4-cyanopyridine;4-Cyano-2-chloropyridine
Categories:
Pharmaceutical Intermediates > Heterocyclic Compound

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Description

White to off-white solid

2-Chloro-4-cyanopyridine Basic Attributes

Molecular Weight：

138.55

Exact Mass：

138.55

BRN：

113927

EC Number：

-0

DSSTox ID：

DTXSID00340938

HScode：

2933399090

Characteristics

PSA：

36.7

XLogP3：

1.5

Appearance：

white or light yellow crystal

Density：

1.3±0.1 g/cm3

Melting Point：

49 °C

Boiling Point：

104-106 °C @ Press: 15 Torr

Flash Point：

104-106°C/15mm

Refractive Index：

1.566

Safety Information

Packing level：

III

Hazard category：

6.1

Transport codes：

3276

wgk germany：

hazard class code：

36/37/38-20/21/22

safety instructions：

26-36-36/37/39-36/37

Marks：

Xi,Xn

Hazard note：

Irritant

Precautionary statement(s)：

P261-P305 + P351 + P338

Hazard Statements：

H315-H319-H335

GHS Classification：

|Warning|H302 (13.46%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 52 companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

2-Chloro-4-cyanopyridine Use and Manufacturing

Methods of Manufacturing

In a 1000ml reaction flask, Add 4-cyanopyridine-N-oxide 120g, 1, 2-dichloroethane 360ml, Phosphorus oxychloride 183.6g, Cool the reaction system to -2±2°C, Triethylamine 151.5g was added dropwise.The dripping time is 2h. After the dripping is completed, the incubation time is 2h. After the reaction is completed, The reaction solution was concentrated until no more fractions flowed out.Add 240ml water, Stirring, There are a lot of solids out, Suction filtrationThe filter cake is rinsed with water.dry, 117.5g of white solidThat is 2-chloro-4-cyanopyridine.

Uses

Used as medicine and pesticide intermediate

Computed Properties

Molecular Weight:138.55
XLogP3:1.5
Hydrogen Bond Acceptor Count:2
Exact Mass:137.9984758
Monoisotopic Mass:137.9984758
Topological Polar Surface Area:36.7
Heavy Atom Count:9
Complexity:137
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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