1,4-Dichlorbut-2-in

Modify Date: 2025-08-22 18:12:37

1,4-Dichlorbut-2-in structure	Common Name	1,4-Dichlorbut-2-in
	CAS Number	821-10-3	Molecular Weight	122.981
	Density	1.2±0.1 g/cm3	Boiling Point	165.5±0.0 °C at 760 mmHg
	Molecular Formula	C₄H₄Cl₂	Melting Point	-34.5ºC
	MSDS	Chinese USA	Flash Point	70.7±13.9 °C
	Symbol	GHS07	Signal Word	Warning

Name	1,4-Dichloro-2-butyne
Synonym	More Synonyms

Density	1.2±0.1 g/cm3
Boiling Point	165.5±0.0 °C at 760 mmHg
Melting Point	-34.5ºC
Molecular Formula	C₄H₄Cl₂
Molecular Weight	122.981
Flash Point	70.7±13.9 °C
Exact Mass	121.969009
LogP	2.01
Vapour Pressure	2.5±0.3 mmHg at 25°C
Index of Refraction	1.474
Storage condition	2-8°C

1,4-Dichlorbut-2-in MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ER9600000

CHEMICAL NAME :: 2-Butyne, 1,4-dichloro-

CAS REGISTRY NUMBER :: 821-10-3

BEILSTEIN REFERENCE NO. :: 0635740

LAST UPDATED :: 199701

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C4-H4-Cl2

MOLECULAR WEIGHT :: 122.98

WISWESSER LINE NOTATION :: G2UU2G

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 56 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#02969

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	Eyeshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	T:Toxic;
Risk Phrases	R23/24/25;R36/37/38;R40
Safety Phrases	S26-S36-S45-S38-S36/37/39-S28A
RIDADR	UN 2810
WGK Germany	3
RTECS	ER9600000
Packaging Group	II
Hazard Class	6.1
HS Code	29032900

2-Butine-1,4-diol

CAS#:110-65-6

~18%

4-CHLORO-2-BUTY...

CAS#:13280-07-4

1,4-Dichlorbut-2-in

CAS#:821-10-3

Literature: Advanced Synthesis and Catalysis, , vol. 348, # 15 p. 2133 - 2147

but-2-yne-1,4-b...

CAS#:16669-40-2

~75%

1,4-Dichlorbut-2-in

CAS#:821-10-3

Literature: Richter, Reinhard; Tucker, Benjamin Journal of Organic Chemistry, 1983 , vol. 48, # 15 p. 2625 - 2627

2-Butine-1,4-diol

CAS#:110-65-6

~85%

1,4-Dichlorbut-2-in

CAS#:821-10-3

Literature: Chang, Sukbok; Lee, Nam Ho; Jacobsen, Eric N. Journal of Organic Chemistry, 1993 , vol. 58, # 25 p. 6939 - 6941

Pyridine

CAS#:110-86-1

2-Butine-1,4-diol

CAS#:110-65-6

Thionyl chloride

CAS#:7719-09-7

1,4-Dichlorbut-2-in

CAS#:821-10-3

Literature: Journal of the Chemical Society, , p. 1013

2-Butine-1,4-diol

CAS#:110-65-6

Hydrochloric acid

CAS#:7647-01-0

acetic acid

CAS#:64-19-7

(Z)-2,4-dichlor...

CAS#:7166-52-1

Detail

Literature: Journal of the Chemical Society, , p. 1013

2-Butine-1,4-diol

CAS#:110-65-6

Phosphorus pent...

CAS#:10026-13-8

benzene

CAS#:71-43-2

1,4-Dichlorbut-2-in

CAS#:821-10-3

Literature: Annales de Chimie (Cachan, France), , vol. <12>3, p. 674 Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, , vol. 223, p. 908

Precursor 8
CAS#:110-65-6 2-Butine-1,4-diol CAS#:16669-40-2 but-2-yne-1,4-b... CAS#:110-86-1 Pyridine CAS#:7719-09-7 Thionyl chloride
CAS#:7647-01-0 Hydrochloric acid CAS#:64-19-7 acetic acid CAS#:10026-13-8 Phosphorus pent... CAS#:71-43-2 benzene
DownStream 10
CAS#:111339-46-9 N-[2-[4-(2-acet... CAS#:111-53-5 2-Butyne-1,4-di... CAS#:105-18-0 2-Butyne-1,4-di... CAS#:3757-53-7 5-Methyl-1H-pyr...
CAS#:3284-51-3 Ethyl 5-methyl-... CAS#:14272-28-7 2-Butyne,1,4-bi... CAS#:14304-31-5 hept-1-en-4,6-d... CAS#:4819-69-6 1H-Isoindole-1,...
CAS#:928-49-4 Hex-3-yne CAS#:513-81-5 2,3-DIMETHYL-1,...

HS Code	2903299090
Summary	2903299090 other unsaturated chlorinated derivatives of acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

1,4-Dichloro-2-butyne

2-Butyne, 1,4-dichloro-

G2UU2G

1,4-dichlorobut-2-yne

1,4-Dichlorbut-2-in

EINECS 212-474-8

MFCD00000981

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 1,4-Dichlorbut-2-in
Price: Check
Purity: 99.0%
Delivery: 10 Day
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Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 1,4-Dichlorbut-2-in
Price: ￥358.0/25g ￥118.0/5g
Purity: 97.0%
Delivery: 2 Day
Contact: Liu jia
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1,4-Dichloro-2-butyne
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: 1,4-Dichlorbut-2-in
Price: ￥Inquiry/1kg ￥Inquiry/25kg ￥Inquiry/200kg
Purity: 99.0%
Delivery: 3 Day
Contact: Wang Jie
Email: 3096638339@qq.com

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1,4-Dichlorbut-2-in

Names

Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

Safety Information

Synthetic Route

Precursor & DownStream

Customs

Synonyms

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.