Bis(trimethylsilyl)acetylene 双(三甲基硅烷基)乙炔

CAS 14630-40-1 MFCD00008276


SMILES: C[Si](C)(C)C#C[Si](C)(C)C


Mol. Formula(CH3)3SiC≡CSi(CH3)3
Mol. Weight170
Refractive indexn20/D 1.427(lit.)
Boiling Point136 -137
Melting Point21-24
Flash Point2°C(lit.)


Chemical NameBis(trimethylsilyl)acetylene
Synonym Bis(trimethylsilyl)-acetylen 1,2-ethynediylbis[trimethyl-silan BSTMA Bis(trimethylsilyl)acetylene,min.97% 1,2-Ethynediylbis(trimethylsilane) bis(trimethylsilyl)acetylene;1,2-bis(trimethylsilyl)acetylene 1,2-bis(trimethylsilyl)acetylene bis(trimethylsilyl)acetylene 1,2-Bis(trimethylsilyl)ethyne 双(三甲基硅基)乙炔,99% Trimethyl[(trimethylsilyl)ethynyl]silane 双(三甲基硅烷基)乙炔 1,2-BIS-TRIMETHYLSILANYL-ETHYNE 2,5-Disilahex-3-yne, 2,2,5,5-tetramethyl- 双(三甲基硅基)乙炔 Ethynylbistrimethylsilanel Silane, 1,2-ethynediylbis[trimethyl- BTMSA 1,2-ethynediylbis[trimethyl-Silane Bis(trimethylsilyl)acetylene, min. 97% 双(三甲硅基)乙炔 Acetylene, bis(trimethylsilyl)- Bis(trimethylsilyl) acetylene Bis(trimethylsilyl)acetylene(BTMSA) Bis-(trimethylsilyl)-acetylen Silane, 1,2-ethynediylbis*trimethyl- hexa-Si-methyl-Si,Si'-ethynediyl-bis-silane 双三甲基硅乙炔 二(三甲基甲硅烷基)乙炔 双(三甲基甲硅烷基)乙炔 BIS(TRIMETHYLSILYL)ACETYLENE 1,2-Bis(trimethylsilyl)acetylene trimethylsilylacetylen 1,2-Ethynediylbis[trimethylsilane] 1,2-双三甲基硅基乙炔 5-Fluoro-2-methoxy-phenylamine TIMTEC-BB SBB008997 Bis(trimethylsilyl)ethyne
CAS Number14630-40-1
PubChem Substance ID87564033
EC Number238-671-9
Beilstein Registry Number906870
MDL NumberMFCD00008276
Chemical Name Translation双(三甲基硅烷基)乙炔
LabNetwork Molecule IDLN00189473
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  • {SA} Alkynes, Building Blocks, Chemical Synthesis, Internal, Organic Building Blocks
  • Alkynes, Building Blocks, Chemical Synthesis, Internal, Organic Building Blocks
  • {uni_hamburg} no charge; 1fragment


  • 硅基保护基,有机合成。


  • Precursor of lithium TMS acetylide: J. Chem. Soc., Chem. Commun., 840 (1979), and dilithioacetylide: Tetrahedron Lett., 34, 839 (1993).
  • Reacts with electrophiles via Si-stabilized carbocations ions and subsequent desilylation; see Appendix 4. Thus, Lewis acid promoted reaction with acid chlorides gives alkynyl ketones, leading to a synthesis of ɑß-enals: J. Org. Chem., 38, 2254 (1973); 57, 3203 (1992):
  • Addition to chiral acetals in the presence of TiCl4 leads to ɑ-hydroxy alkynes in high yield and ee: J. Am . Chem. Soc., 105, 2904 (1983); J. Chem. Soc., Perkin 1, 3301 (1991). Sulfonyl chlorides give alkynyl sulfones: Org. Synth. Coll., 8, 281 (1993), and references therein.
  • Short: II/2
  • Beilstein: 4,IV,3950


GHS Symbol
WGK Germany3
Hazard statements
  • H315 Causes skin irritation 会刺激皮肤
  • H335 May cause respiratory irritation 可能导致呼吸道刺激
  • H225 Highly flammable liquid and vapour 高度易燃液体和蒸气
  • H319 Causes serious eye irritation 严重刺激眼睛
  • H228 Flammable solid 易燃固体
Personal Protective Equipment Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Hazard Codes 3 F;Xi
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。
  • P240 Ground/bond container and receiving equipment. 与地面接触/连接集装箱和接受设备。
  • 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
  • P332+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
Signal word Danger Warning
Safety Statements
  • S16 Keep away from sources of ignition - No smoking 远离火源,禁止吸烟;
Risk Statements
  • R10 Flammable 易燃
  • R11 Highly flammable 非常易燃
  • R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性
UN Number 1993 UN 1993 3/PG 2
Packing GroupIII
Hazard Class4.1
Storage condition 0-10°C 0-6°C


  • 图谱信息:二(三甲基甲硅烷基)乙炔(14630-40-1)质谱(MS) 二(三甲基甲硅烷基)乙炔(14630-40-1)红外图谱(IR1)
  • 海关编码:29310095
  • 二(三甲基甲硅烷基)乙炔价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2011/08/23 LA1196002 双(三甲基硅基)乙炔 50g 1212元 2011/04/16 B1090 双(三甲基硅基)乙炔 Bis(trimethylsilyl)acetylene 5G 533元 2011/04/16 B1090 双(三甲基硅基)乙炔 Bis(trimethylsilyl)acetylene 25G 1570元
  • MSDS 信息:Bis(trimethylsilyl)acetylene(14630-40-1).msds
  • 上游原料:四氢呋喃 --> 镁 --> 氯化亚铜 --> 溴乙烷 --> 三甲基氯硅烷 --> 乙炔
  • TCI Shanghai:双(三甲基硅基)乙炔 Bis(trimethylsilyl)acetylene,>;97.0%(GC)(14630-40-1)
  • 存储注意事项:氮气保护
  • Acros Organics:双(三甲基硅基)乙炔 Bis(trimethylsilyl)acetylene, 99%(14630-40-1)
  • F:10
  • 用途一:硅基保护基,有机合成。
  • MOL 文件:14630-40-1.mol
  • TSCA:Yes
  • Sigma Aldrich:14630-40-1(sigmaaldrich)
  • Alfa Aesar:双(三甲基硅基)乙炔,99% Bis(trimethylsilyl)acetylene, 99%(14630-40-1)
  • 水中可能分解。