3-Ethynyltoluene
Uses- Product Name
- 3-Ethynyltoluene
- CAS No.
- 766-82-5
- Chemical Name
- 3-Ethynyltoluene
- Synonyms
- 3-ETHYNYLTOLUENE;M-ETHYNYLTOLUENE;M-TOLYLACETYLENE;m-Ethylnyltoluene;3-Ethynyltoluene>m-Tolylacetylene,97%;3-Ethynyltoluene 97%;3-Ethynyltoluene, 97%;3-Ethynyltoluene Stage 3;M-Tolylacetylene, 97% 1GR
- CBNumber
- CB8466835
- Molecular Formula
- C9H8
- Formula Weight
- 116.16
- MOL File
- 766-82-5.mol
3-Ethynyltoluene Property
- Boiling point:
- 170-175 °C(lit.)
- Density
- 0.900 g/mL at 25 °C(lit.)
- refractive index
- n20/D 1.5440(lit.)
- Flash point:
- 50°C
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- form
- Liquid
- Specific Gravity
- 0.9073
- color
- Clear light yellow to brown
- BRN
- 2038007
- CAS DataBase Reference
- 766-82-5(CAS DataBase Reference)
- NIST Chemistry Reference
- 3-Methylphenylacetylene(766-82-5)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 10-36/37/38-65
- Safety Statements
- 16-26-36
- RIDADR
- UN 1993 3/PG 3
- WGK Germany
- 3
- HazardClass
- 3
- PackingGroup
- III
- HS Code
- 29029090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H226Flammable liquid and vapour
H304May be fatal if swallowed and enters airways
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233Keep container tightly closed.
P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P331Do NOT induce vomiting.
N-Bromosuccinimide Price
- Product number
- 521140
- Product name
- 3-Ethynyltoluene
- Purity
- 97%
- Packaging
- 1g
- Price
- $24.78
- Updated
- 2025/07/31
- Product number
- 521140
- Product name
- 3-Ethynyltoluene
- Purity
- 97%
- Packaging
- 5g
- Price
- $143
- Updated
- 2025/07/31
- Product number
- E0665
- Product name
- 3-Ethynyltoluene
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $38
- Updated
- 2025/07/31
- Product number
- E0665
- Product name
- 3-Ethynyltoluene
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $112
- Updated
- 2025/07/31
- Product number
- E0665
- Product name
- 3-Ethynyltoluene
- Purity
- >98.0%(GC)
- Packaging
- 25g
- Price
- $383
- Updated
- 2025/07/31
3-Ethynyltoluene Chemical Properties,Usage,Production
Uses
3-ETHYNYLTOLUENE is a useful research chemical.
Chemical Properties
Clear light yellow to brown liquid
Synthesis Reference(s)
The Journal of Organic Chemistry, 43, p. 358, 1978 DOI: 10.1021/jo00396a046
Tetrahedron Letters, 13, p. 5209, 1972
Synthesis
40230-90-8
766-82-5
The general procedure for the synthesis of 3-methylphenylacetylene from 3-tolyl(trimethylsilyl)acetylene was as follows: 3-[(trimethylsilyl)ethynyl]toluene (1 mmol), an inorganic base (potassium tert-butanol, sodium tert-butanol, potassium hydroxide, sodium hydroxide, or potassium trimethylsilylated, sodium trimethylsilylated, 0.05 mmol) were added in turn to a 10 mL sealed tube, as well as 2 mL of DMA or DMSO as solvent. The mixture was heated and stirred in an oil bath at 60 °C for 7 h. The reaction progress was monitored by TLC. Upon completion of the reaction, equal amounts of homotrimethylbenzene or n-undecane were added as internal standards for quantitative analysis of the crude product. The exact yields of the products were determined by GC and GC-MS. The yields of the products were 74%, 73%, 74%, 80%, 93%, and 90% when DMSO was used as the solvent and potassium tert-butanol, sodium tert-butanol, potassium hydroxide, sodium hydroxide, or potassium trimethylmethylsilylated, sodium trimethylmethylsilylated were used as the catalysts, respectively. And when DMA was used as the solvent, the yields of the products were 61%, 60%, 63%, 73%, 82%, and 83%, respectively, using the same catalysts.
References
[1] Journal of Chemical Research, 2007, # 12, p. 728 - 732
[2] Patent: CN107459438, 2017, A. Location in patent: Paragraph 0054; 0055
[3] Organic Letters, 2014, vol. 16, # 3, p. 948 - 951
[4] Tetrahedron Letters, 1972, vol. 13, # 51, p. 5209 - 5212
[5] Organic letters, 2001, vol. 3, # 2, p. 153 - 155
3-Ethynyltoluene Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 3-Ethynyltoluene manufacturers
- Product
- 3-Ethynyltoluene 766-82-5
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-06-27
- Product
- 3-Ethynyltoluene 766-82-5
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 1ton
- Release date
- 2018-08-13