2,3-Dichloropyrazine

About 2,3-Dichloropyrazine

2,3-Dichloropyrazine is a diazine derivative carrying the CAS registry number 4858-85-9. With the molecular formula C4H2Cl2N2, it has a molar mass of 148.98 g/mol. Common synonyms include Pyrazine, 2,3-dichloro- and dichloropyrazine.

Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 100 mg, 250 mg, 1 g and 5 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation. Custom pack sizes, bulk quantities and specific analytical data can be arranged on request.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	2,3-Dichloropyrazine
Catalogue No.	VQ-049556
CAS Number	4858-85-9
IUPAC name	2,3-dichloropyrazine
Molecular formula	C₄H₂Cl₂N₂
Molecular weight	148.98 g/mol
Exact mass	147.9595
HSN code	2933
InChIKey	MLCNOCRGSBCAGH-UHFFFAOYSA-N
SMILES	C1=CN=C(C(=N1)Cl)Cl
PubChem CID	78575

Physical properties
Physical form	Other
LogP (XLogP3)	1.7
H-bond donors / acceptors	0 / 2
TPSA	25.8 Å²

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 2,3-Dichloropyrazine?

The CAS Registry Number of 2,3-Dichloropyrazine is 4858-85-9. It is also known as Pyrazine, 2,3-dichloro-, dichloropyrazine, 5,6-dichloropyrazine.

What is the molecular formula and molecular weight of 2,3-Dichloropyrazine?

2,3-Dichloropyrazine has the molecular formula C4H2Cl2N2 and a molecular weight of 148.98 g/mol. Its IUPAC name is 2,3-dichloropyrazine.

Which grade and pack sizes of 2,3-Dichloropyrazine can I order?

We supply 2,3-Dichloropyrazine, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2,3-Dichloropyrazine?

Yes. Every lot of 2,3-Dichloropyrazine is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 2,3-Dichloropyrazine be shipped internationally?

Yes. 2,3-Dichloropyrazine is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.