CAS 821-10-3|1,4-Dichlorbut-2-in

Introduction：Basic information about CAS 821-10-3|1,4-Dichlorbut-2-in, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Table of Contents

1. Names
2. Chemical & Physical Properties
3. Toxicological Information
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
4. Safety Information
5. Customs
6. Synonyms

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	ChineseUSA	Flash Point	70.7±13.9 °C
Symbol	GHS07	Signal Word	Warning

Names

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

Chemical & Physical Properties

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
InChIKey	RCHDLEVSZBOHOS-UHFFFAOYSA-N
SMILES	ClCC#CCCl
Storage condition	2-8°C

Toxicological Information

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

Safety Information

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

Customs

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%

Synonyms

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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