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3-Ethynyltoluene

3-Ethynyltoluene Structure
3-Ethynyltoluene structure
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
Molecular Weight:
116.16
MDL Number:
MFCD01318174
MOL File:
766-82-5.mol
MSDS File:
SDS
Last updated:2026-01-13 11:27:11
Product description Number Pack Size Price
3-Ethynyltoluene 97% 521140 1g $37.7
3-Ethynyltoluene 97% 521140 5g $152
3-Ethynyltoluene >98.0%(GC) E0665 1g $33
3-Ethynyltoluene >98.0%(GC) E0665 5g $98
3-Ethynyltoluene >98.0%(GC) E0665 25g $339
More product size
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3-Ethynyltoluene Properties

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
InChI 1S/C9H8/c1-3-9-6-4-5-8(2)7-9/h1,4-7H,2H3
InChIKey RENYIDZOAFFNHC-UHFFFAOYSA-N
SMILES Cc1cccc(c1)C#C
CAS DataBase Reference 766-82-5(CAS DataBase Reference)
NIST Chemistry Reference 3-Methylphenylacetylene(766-82-5)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS02,GHS07,GHS08
Signal word  Danger
Hazard statements  H226-H304-H315-H319-H335
Precautionary statements  P210-P233-P301+P310-P303+P361+P353-P305+P351+P338-P331
target organs Respiratory system
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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
Storage Class 3 - Flammable liquids
Hazard Classifications Asp. Tox. 1
Eye Irrit. 2
Flam. Liq. 3
Skin Irrit. 2
STOT SE 3
Limited Quantities 5.0 L (1.3 gallons) (liquid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
NFPA 704
3
2 0

3-Ethynyltoluene price More Price(33)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 521140 3-Ethynyltoluene 97% 766-82-5 1g $37.7 2026-04-30 Buy
Sigma-Aldrich 521140 3-Ethynyltoluene 97% 766-82-5 5g $152 2026-04-30 Buy
TCI Chemical E0665 3-Ethynyltoluene >98.0%(GC) 766-82-5 1g $33 2026-04-30 Buy
TCI Chemical E0665 3-Ethynyltoluene >98.0%(GC) 766-82-5 5g $98 2026-04-30 Buy
TCI Chemical E0665 3-Ethynyltoluene >98.0%(GC) 766-82-5 25g $339 2026-04-30 Buy
Product number Packaging Price Buy
521140 1g $37.7 Buy
521140 5g $152 Buy
E0665 1g $33 Buy
E0665 5g $98 Buy
E0665 25g $339 Buy

3-Ethynyltoluene Chemical Properties,Uses,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

3-[(Trimethylsilyl)ethynyl]toluene

40230-90-8

3-Ethynyltoluene

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 synthesis

40230-90-8
766-82-5
Synthesis of 3-Ethynyltoluene from 3-[(Trimethylsilyl)ethynyl]toluene

3-Ethynyltoluene Preparation Products And Raw materials

Raw materials

3-Butyn-2-ol, 2-methyl-4-(3-methylphenyl)- N-Methyl methanesulfonamide 3-[(Trimethylsilyl)ethynyl]toluene 3'-Methylacetophenone m-Tolualdehyde
Dimethyl sulfoxide Potassium trimethylsilanolate

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Preparation Products

3-(m-Tolyl)-1H-pyrazole 3-Methylphenethyl alcohol 2-Propyn-1-ol, 3-(3-methylphenyl)-

3-Ethynyltoluene Suppliers

Global( 192)Suppliers
Supplier Tel Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21590 55
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29819 58
Changzhou Ansciep Chemical Co., Ltd. 		+86 519 86305871 sales@ansciepchem.com CHINA 4241 58
Alchem Pharmtech,Inc. 		8485655694 sales@alchempharmtech.com United States 63687 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427 sales@conier.com China 49977 58
Neostar United (Changzhou) Industrial Co., Ltd. 		+86-0519-85551759 +8613506123987 marketing1@neostarunited.com China 8828 58
Hefei TNJ Chemical Industry Co.,Ltd. 		+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34563 58
Win-Win chemical CO., Limited 		+86-0086-577-64498589 +86-15355981851 sales@win-winchemical.com China 14304 58
Shaanxi Dideu Medichem Co. Ltd 		+86-029-89586680 +86-18192503167 1026@dideu.com China 10000 58
Finetech Industry Limited 		+86-27-8746-5837 +8619945049750 info@finetechnology-ind.com China 9540 58
Supplier Advantage
Henan Tianfu Chemical Co.,Ltd. 		55
career henan chemical co 		58
Changzhou Ansciep Chemical Co., Ltd. 		58
Alchem Pharmtech,Inc. 		58
CONIER CHEM AND PHARMA LIMITED 		58
Neostar United (Changzhou) Industrial Co., Ltd. 		58
Hefei TNJ Chemical Industry Co.,Ltd. 		58
Win-Win chemical CO., Limited 		58
Shaanxi Dideu Medichem Co. Ltd 		58
Finetech Industry Limited 		58

View Lastest Price from 3-Ethynyltoluene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3-Ethynyltoluene pictures 2021-07-02 3-Ethynyltoluene
766-82-5
 US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
3-Ethynyltoluene pictures 2019-07-06 3-Ethynyltoluene
766-82-5
 US $1.00 / KG 1KG 98% 1ton Career Henan Chemical Co
  • 3-Ethynyltoluene pictures
  • 3-Ethynyltoluene
    766-82-5
  • US $15.00-10.00 / KG
  • 99%+ HPLC
  • Zhuozhou Wenxi import and Export Co., Ltd

3-Ethynyltoluene Spectrum

3-Ethynyltoluene(766-82-5)MS3-Ethynyltoluene(766-82-5)1HNMR3-Ethynyltoluene(766-82-5)13CNMR3-Ethynyltoluene(766-82-5)IR1

766-82-5(3-Ethynyltoluene)Related Search:

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Tribenuron methyl Methyl acrylate 1-BUTEN-3-YNE Methanol Benzene
Methyl (-)-2-[METHYLAMINO]-1-PHENYLPROPANE 1,3,5-TRIETHYNYLBENZENE

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