1,4-Dichlorbut-2-in

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Names

[ CAS No. ]:
821-10-3

[ Name ]:
1,4-Dichlorbut-2-in

[Synonym ]:
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

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

[ Storage condition ]:
2-8°C

MSDS

Click to get detail MSDS

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

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 2-Butine-1,4-diol
  • but-2-yne-1,4-bisoxycarbonylchloride
  • Pyridine
  • Thionyl chloride
  • Hydrochloric acid
  • acetic acid
  • Phosphorus pentachloride
  • benzene

DownStream

  • N-[2-[4-(2-acetamidophenoxy)but-2-ynoxy]phenyl]acetamide
  • 2-Butyne-1,4-diamine,N1,N1,N4,N4-tetramethyl-
  • 2-Butyne-1,4-diamine,N1,N1,N4,N4-tetraethyl-
  • 5-Methyl-1H-pyrrole-2-carboxylic acid
  • Ethyl 5-methyl-1H-pyrrole-2-carboxylate
  • 2-Butyne,1,4-bis[(1,1-dimethylethyl)thio]-
  • hept-1-en-4,6-diyn-3-ol
  • 1H-Isoindole-1,3(2H)-dione,2-(4-chloro-2-butyn-1-yl)-
  • Hex-3-yne
  • 2,3-DIMETHYL-1,3-BUTADIENE

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%

Related Compounds

  • 1,4-Dichlorobut-2-ene
  • 1-[4-(2-ethylsulfanylethenyl)phenyl]ethanone
  • 1-[4-(2-phenylsulfanylethenyl)phenyl]ethanone
  • 1-[4-(2-nitrophenoxy)piperidin-1-yl]ethanone
  • 1-[4-[(2-chlorophenyl)methylideneamino]phenyl]ethanone
  • 1-[4-[2-(4-chlorophenyl)propan-2-yl]-2-methoxyphenyl]-1,2,4-triazole-3-carboxamide
  • 2-(Difluoromethyl)-6-fluoro-5-nitropyridine-3-carboxylic acid
  • 2-(Difluoromethyl)-3-methoxy-5-(trifluoromethoxy)pyridine-4-acetonitrile
  • 2-(Difluoromethyl)-3-iodo-4-methoxypyridine-5-carboxylic acid
  • 2-(Difluoromethyl)-3-iodo-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
  • 2-(Difluoromethyl)-4-iodo-5-methoxypyridine
  • 2-(Difluoromethyl)-6-hydroxy-3-nitro-4-(trifluoromethyl)pyridine
  • 2-(Difluoromethyl)-4-methoxy-5-(trifluoromethyl)pyridine-3-carboxaldehyde
  • 2-(Difluoromethoxy)-4-fluoro-2'-(trifluoromethoxy)biphenyl
  • 2-(Difluoromethyl)-5-methoxy-4-methylpyridine-3-acetonitrile
  • 2-(Difluoromethyl)-3-methyl-5-nitro-4-(trifluoromethyl)pyridine
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