1,4-Dichloro-2-butyne, 97%

Name: 1,4-Dichloro-2-butyne, 97%
Brand: Vaqora Chemicals
SKU: VQ-010337

About 1,4-Dichloro-2-butyne, 97%

Listed under CAS 821-10-3, 1,4-Dichloro-2-butyne is a halogenated building block available from Vaqora Chemicals, specified at 99% purity. The compound has the formula C4H4Cl2, corresponding to a molecular weight of 122.98 g/mol. Its systematic (IUPAC) name is 1,4-dichlorobut-2-yne. It is also known as 2-Butyne, 1,4-dichloro- or 4-01-00-00973 (Beilstein Handbook Reference).

The product is provided as a liquid. Literature values give a boiling point of 165-168 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Key uses span cross-coupling substrates, alkylation reactions and organic synthesis. Buyers come mainly from pharmaceutical manufacturing, academic and industrial research and agrochemical production.

Available in 5 g, 25 g, 100 g and 1 kg packs, 1,4-Dichloro-2-butyne is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Cross-coupling substrates
Alkylation reactions
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	1,4-Dichloro-2-butyne, 97%
Catalogue No.	VQ-010337
CAS Number	821-10-3
IUPAC name	1,4-dichlorobut-2-yne
Molecular formula	C₄H₄Cl₂
Molecular weight	122.98 g/mol
Exact mass	121.969
Purity / assay	99%
HSN code	29309099
InChIKey	RCHDLEVSZBOHOS-UHFFFAOYSA-N
SMILES	C(C#CCCl)Cl
PubChem CID	13182

Physical properties
Physical form	Liquid
Appearance	Liquid
Boiling point	165-168 °C
LogP (XLogP3)	2
H-bond donors / acceptors	0 / 0
TPSA	0 Å²
Synonyms	2-Butyne, 1,4-dichloro-, 4-01-00-00973 (Beilstein Handbook Reference), 1,4Dichlorobutyne, 1,4Dichlorobut2yne, 2Butyne, 1,4dichloro, 1,4-Dichlorobutyne, 1,4-dichloro-but-2-yne, C4H4Cl2, 1,4-Dichloro-2-butyne, Bis(chloromethyl)acetylene, 2-Butyne,4-dichloro-, 1,4 dichloro-2-butyne

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, 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 1,4-Dichloro-2-butyne, 97%?

The CAS Registry Number of 1,4-Dichloro-2-butyne, 97% is 821-10-3. It is also known as 2-Butyne, 1,4-dichloro-, 4-01-00-00973 (Beilstein Handbook Reference), 1,4Dichlorobutyne.

What is the molecular formula and molecular weight of 1,4-Dichloro-2-butyne, 97%?

1,4-Dichloro-2-butyne, 97% has the molecular formula C4H4Cl2 and a molecular weight of 122.98 g/mol. Its IUPAC name is 1,4-dichlorobut-2-yne.

Which grade and pack sizes of 1,4-Dichloro-2-butyne, 97% can I order?

We supply 1,4-Dichloro-2-butyne, 97% in (99%) grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1,4-Dichloro-2-butyne, 97%?

Yes. Every lot of 1,4-Dichloro-2-butyne, 97% 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 1,4-Dichloro-2-butyne, 97% be shipped internationally?

Yes. 1,4-Dichloro-2-butyne, 97% 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.