1,4-Diethynylbenzene

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Names

[ CAS No. ]:
935-14-8

[ Name ]:
1,4-Diethynylbenzene

[Synonym ]:
MFCD00078375
1,4-diacetylenebenzene
Benzene, 1,4-diethynyl-
p-Diethynylbenzene
1,4-Diethynyl-benzene
Diethynylbenzene
1,4-phenylene-diacetylene
Benzene,1,4-diethynyl
para-diethynylbenzene
Benzene,p-diethynyl-(7CI,8CI)
1,4-Bis(ethynyl)benzene

Chemical & Physical Properties

[ Density]:
1.0±0.1 g/cm3

[ Boiling Point ]:
182.8±23.0 °C at 760 mmHg

[ Melting Point ]:
94-98 °C(lit.)

[ Molecular Formula ]:
C10H6

[ Molecular Weight ]:
126.155

[ Flash Point ]:
51.9±16.7 °C

[ Exact Mass ]:
126.046951

[ LogP ]:
2.58

[ Vapour Pressure ]:
1.1±0.2 mmHg at 25°C

[ Index of Refraction ]:
1.567

[ Storage condition ]:
Refrigerator (+4°C)

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
CZ5643000
CHEMICAL NAME :
Benzene, 1,4-diethynyl-
CAS REGISTRY NUMBER :
935-14-8
BEILSTEIN REFERENCE NO. :
2038365
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C10-H6

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
4500 mg/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex) Lungs, Thorax, or Respiration - respiratory stimulation
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 30(5),59,1986

Safety Information

[ Hazard Codes ]:
Xi: Irritant;

[ Risk Phrases ]:
R43;R52/53

[ Safety Phrases ]:
S37/39

[ RIDADR ]:
1325

[ WGK Germany ]:
3

[ RTECS ]:
CZ5643000

[ HS Code ]:
2902909090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 1,4-Bis[(trimethylsilyl)ethynyl]benzene
  • 1,4-bis(2,2-dibromoethenyl)benzene
  • 4-[4-(3-hydroxy-3-methylbut-1-ynyl)phenyl]-2-methylbut-3-yn-2-ol
  • 1,4-diacetylbenzene
  • 1,4-Diiodobenzene
  • 1,4-Dibromobenzene
  • Terephthalaldehyde
  • Phosphonium,(dibromomethyl)triphenyl-, bromide (1:1)
  • TMS-acetylene

DownStream

  • 1,4-bis(4-chlorobut-3-en-1-ynyl)benzene
  • 1,4-diacetylbenzene
  • 1-(4-Ethynylphenyl)ethanone
  • 1-ETHYNYL-4-((4-NITROPHENYL)ETHYNYL)BENZENE
  • 4-[4-(3-hydroxy-3-methylbut-1-ynyl)phenyl]-2-methylbut-3-yn-2-ol
  • 4-Iodobenzoic acid
  • 1,4-BIS(PHENYLETHYNYL)BENZENE
  • 1,4-Bis[(trimethylsilyl)ethynyl]benzene

Customs

[ HS Code ]: 2902909090

[ Summary ]:
2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Related Compounds

  • 2-nitro-1,4-diethynylbenzene
  • copper(1+),1,4-diethynylbenzene
  • 2,5-dibutoxy-1,4-diethynylbenzene
  • 2,5-dimethoxy-1,4-diethynylbenzene
  • 1,3-diethynylbenzene,1,4-diethynylbenzene
  • 1,4-didodecyl-2,5-diethynylbenzene
  • N-{[1-(morpholin-4-yl)cyclobutyl]methyl}-4-(trifluoromethoxy)benzamide
  • 2-methyl-1-[1-(oxane-2-carbonyl)azetidin-3-yl]-1H-1,3-benzodiazole
  • N-[(oxolan-2-yl)methyl]-3-{[2-(trifluoromethyl)pyridin-4-yl]oxy}azetidine-1-carboxamide
  • N-[1-(3-Cyanopyrazin-2-yl)azetidin-3-yl]-3-(3,5-dimethyl-1,2-oxazol-4-yl)-N-methylpropanamide
  • 3-methoxy-N-methyl-N-({1-[4-(trifluoromethyl)pyrimidin-2-yl]piperidin-4-yl}methyl)pyrazin-2-amine
  • 6-(4-Chlorophenyl)-2-(1-cyclopropanecarbonylazetidin-3-yl)-2,3-dihydropyridazin-3-one
  • 1-{4-[5-Fluoro-6-(4-methoxyphenyl)pyrimidin-4-yl]piperazin-1-yl}ethan-1-one
  • Tert-butyl 4-(aminomethyl)-2,6-difluorobenzoate
  • 3-(3-{Methyl[(2-methylphenyl)methyl]amino}azetidin-1-yl)pyrazine-2-carbonitrile
  • N-{[1-(morpholin-4-yl)cyclobutyl]methyl}-1,3-benzothiazole-6-carboxamide
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