1-Ethyl-4-ethynylbenzene 4-乙基苯乙炔

CAS 40307-11-7 MFCD00173887


SMILES: CCc1ccc(cc1)C#C


Mol. FormulaC10H10
Mol. Weight130
Refractive index1.5380 to 1.5420
Flash Point71°C(lit.)
Boiling Point30


Chemical Name1-Ethyl-4-ethynylbenzene
CAS Number40307-11-7
MDL NumberMFCD00173887
Synonym 1-ethyl-4-ethynylbenzene 4-Ethylphenylacetylene Benzene, 1-ethyl-4-ethynyl- {} {} {uni_hamburg}
PubChem Substance ID87560158
EC Number250-023-7
Beilstein Registry Number2235581
Chemical Name Translation4-乙基苯乙炔
LabNetwork Molecule IDLN00158268
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  • {uni_hamburg} no charge; carbocycle; aromatic; 6RingOnly; 6ring; 1fragment
  • {SNA} Alkynes, Building Blocks, Chemical Synthesis, Organic Building Blocks, Terminal


  • Short: IV/1a Title: Densities of Liquid Systems: Nonaqueous Systems and Ternary Aqueous Systems Author: Lacmann, R.; Synowietz, C. Editor: Schäfer, Kl. Source: Landolt-Börnstein, New Series Volume: IV/1a Year: 1974 ISBN: 3-540-06269-6 ISBN: 978-3-540-06269-1 Internet Resource: DOI:10.1007/b20003 RefComment: X, 716 pages. Hardcover Abstract: Volume IV/1 contains information on the densities of liquid systems. It may be considered as a supplement to volume II/1 of the 6th Edition, which contains only a few data on nonaqueous systems. Data are not listed for all systems but primarily for those of greater interest where data for a larger range of concentrations were available.
  • Short: IV/8E Title: Densities of Aromatic Hydrocarbons Author: Wilhoit, R.C.; Hong, X.; Frenkel, M.; Hall, K.R. Editor: Hall, K.R.; Marsh, K.N. Source: Landolt-Börnstein, New Series Volume: IV/8E Year: 1998 Keyword: organic compounds; density; liquids ISBN: 3-540-62510-0 ISBN: 978-3-540-62510-0 Internet Resource: DOI:10.1007/b62075 RefComment: X, 373 pages, with CD-ROM, Hardcover


WGK Germany3
GHS Symbol
Precautionary statements
  • P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. 远离热源/火花/明火/热的表面。——禁止吸烟。
  • P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
  • P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
  • P302+P352+P332+P313+P362+P364
  • P305+P351+P338
  • P305+P351+P338+P337+P313
  • P362 Take off contaminated clothing and wash before reuse. 脱掉污染的衣服,清洗后方可重新使用
  • P370+P378
  • P403+
  • P501 Dispose of contents/container to..… 处理内容物/容器.....
Signal word Warning
Hazard statements
  • H315 Causes skin irritation 会刺激皮肤
  • H319 Causes serious eye irritation 严重刺激眼睛
  • H335 May cause respiratory irritation 可能导致呼吸道刺激
  • H227 Combustible liquid 可燃液体
Personal Protective Equipment Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Safety Statements
  • S16 Keep away from sources of ignition - No smoking 远离火源,禁止吸烟;
  • S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后,立即用大量水冲洗并征求医生意见;
  • S36 Wear suitable protective clothing 穿戴适当的防护服;
  • S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护;
Hazard Codes Xi
Risk Statements
  • R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性