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2,5-dichloropyrazine

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Origin: China

Cas No: 19745-07-4

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 19745-07-4 Formula: C4H2Cl2N2 Molecular Weight: 148.97800

Basic Info

Chemical Name	2,5-dichloropyrazine
Synonyms	2,5-Dichloropyrazine; 2,5-Dichlor-pyrazin; 2,5-Dichloro-pyrazine; pyrazine,2,5-dichloro; 3,6-DICHLOROPYRAZINE;
CAS No.	19745-07-4
Molecular Formula	C4H2Cl2N2
Molecular Weight	148.97800
PSA	25.78000
LogP	1.78340

Properties

Appearance & Physical State	Yellow liquid
Density	1.493 g/cm3
Boiling Point	184.4ºC at 760 mmHg
Melting Point	52-54ºC
Flash Point	81.5ºC
Refractive Index	1.559
Vapor Pressure	1mmHg at 25°C

Safety Info

HS Code	2933990090

Synthesis Route

3-chloro-1-oxidopyrazin-1-ium→2,5-dichloropyrazine+2,3-Dichloropyrazine
3-chloro-1-oxidopyrazin-1-ium→2-Chloropyrazine+2,5-dichloropyrazine
pyrazine+Water→2-Chloropyrazine+2,5-dichloropyrazine

Precursor

2-Chloropyrazine
3-chloro-1-oxidopyrazin-1-ium
5-Chloro-2-Hydroxypyrazine
5-chloropyrazin-2-amine

Downstream Product

2-Chloro-5-iodopyrazine
tert-butyl 4-(6-chloropyrazin-2-yl)piperazine-1-carboxylate
2-chloro-5-piperazin-1-ylpyrazine
3,6-dichloropyrazine-2-carbaldehyde

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