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1,4-Dichloro-2-butyne

1,4-Dichloro-2-butyne Structure
CAS No.
821-10-3
Chemical Name:
1,4-Dichloro-2-butyne
Synonyms
1,4-Dichlorobutyne;DK925;Dichlorobutyne;1,4-Dichlorbut-2-in;1,4-dichloro-2-butyn;1,4-dichlorobut-1-yne;1,4-dichloro-1-butyne;1,4-DICHLORO-2-BUTYNE;1,4-dichloro-but-2-yne;2-Butyne, 1,4-dichloro-
CBNumber:
CB0276041
Molecular Formula:
C4H4Cl2
Molecular Weight:
122.98
MOL File:
821-10-3.mol
MSDS File:
SDS
Modify Date:
2024/5/28 19:59:05

1,4-Dichloro-2-butyne Properties

Melting point 162-165 °C
Boiling point 165-168 °C (lit.)
Density 1.258 g/mL at 25 °C (lit.)
refractive index n20/D 1.505(lit.)
Flash point 320 °F
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
form Oil
color Clear Colourless
Sensitive Light Sensitive
BRN 635740
InChIKey RCHDLEVSZBOHOS-UHFFFAOYSA-N
CAS DataBase Reference 821-10-3(CAS DataBase Reference)
NIST Chemistry Reference 2-Butyne, 1,4-dichloro-(821-10-3)
EPA Substance Registry System 1,4-Dichloro-2-butyne (821-10-3)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS06,GHS07
Signal word  Warning
Hazard statements  H301-H315-H319-H335
Precautionary statements  P261-P305+P351+P338-P264-P270-P280-P301+P310+P330-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P405-P501
Hazard Codes  Xi,T
Risk Statements  36/37/38-40-23/24/25
Safety Statements  26-36-45-38-36/37/39-28A
RIDADR  UN 2810
WGK Germany  3
RTECS  ER9600000
8-10
HazardClass  6.1
PackingGroup  II
HS Code  29032900
NFPA 704
1
2 0

1,4-Dichloro-2-butyne price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) D59607 1,4-Dichloro-2-butyne 99% 821-10-3 5G ₹7427.2 2022-06-14 Buy
Sigma-Aldrich(India) D59607 1,4-Dichloro-2-butyne 99% 821-10-3 25G ₹24855.8 2022-06-14 Buy
Sigma-Aldrich(India) D59607 1,4-Dichloro-2-butyne 99% 821-10-3 100G ₹72584 2022-06-14 Buy
TCI Chemicals (India) D1528 1,4-Dichloro-2-butyne min. 97.0 % 821-10-3 5G ₹3900 2022-05-26 Buy
TCI Chemicals (India) D1528 1,4-Dichloro-2-butyne min. 97.0 % 821-10-3 25G ₹9800 2022-05-26 Buy
Product number Packaging Price Buy
D59607 5G ₹7427.2 Buy
D59607 25G ₹24855.8 Buy
D59607 100G ₹72584 Buy
D1528 5G ₹3900 Buy
D1528 25G ₹9800 Buy

1,4-Dichloro-2-butyne Chemical Properties,Uses,Production

Chemical Properties

CLEAR COLORLESS TO YELLOWISH LIQUID

Uses

1,4-Dichloro-2-butyne used in the synthesis of 1,4-disubstituted 1,2,3-triazoles. Also, it is used in the approach of the 20S-camptothecin family of antitumor agents.

Preparation

1,4-Dichloro-2-butyne could be conveniently prepared by treating 1,4-butynediol with Thionyl Chloride. However, as a precautionary measure, the medium is diluted with CH2Cl2 and cooled to ?30?°C before adding thionyl chloride to avoid hazards associated with the exothermicity of the reaction.

Safety Profile

Poison by intravenous route. When heated to decomposition it emits toxic fumes of Cl-. Probably a dangerous fKe and explosion hazard. See also ACETYLENE COMPOUNDS and CHLORINATED HYDROCARBONS, ALIPHATIC

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1,4-DICHLORO-2-BUTYNE 1,4-dichloro-2-butyn 1,4-dichloro-but-2-yne Dichlorobutyne 2-Butyne, 1,4-dichloro- bis(chloromethyl)acetylene 1,4-Dichloro-2-butyne, 99% 25ML 1,4-Dichloro-2-butyne,99% 1,4-Dichlorobut-2-yne 98+% 1,4-dichloro-1-butyne 1,4-dichlorobut-1-yne 1,4-Dichloro-2-butyne> 1,4-Dichloro-2-butyne ISO 9001:2015 REACH 1,4-Dichlorobutyne DK925 1,4-Dichlorbut-2-in 821-10-3 820-10-3 ClCH2C8801CCH2Cl C4H4Cl2 ClCH2CCCH2Cl Functionalized Acetylenes Acetylenes Building Blocks Alkynyl Halogenated Hydrocarbons Organic Building Blocks Building Blocks Chemical Synthesis Halogenated Hydrocarbons Organic Building Blocks Acetylenes Functionalized Acetylenes Alkynyl Halogenated Hydrocarbons Organic Building Blocks