Substance

ID:721522

Names and Identifiers
IUPAC name
hex-2-yne
IUPAC Traditional name
2-hexyne
Synonyms
2-已炔2-Hexyne
Registration numbers
CAS Number
MDL Number
EC Number
Beilstein Number
Properties
Safety Information
TSCA Listed
Hazard Class
3
GHS Pictograms
GHS08
Respiratory sensitization, category 1
Germ cell mutagenicity, categories 1A,1B,2
Carcinogenicity, categories 1A,1B,2
Reproductive toxicity, categories 1A,1B,2
Specific Target Organ Toxicity – Single exposure, categories 1,2
Specific Target Organ Toxicity – Repeated exposure, categories 1,2
Aspiration Hazard, category 1
GHS02
Flammable gases, category 1
Flammable aerosols, categories 1,2
Flammable liquids, categories 1,2,3
Self-reactive substances and mixtures, Types B,C,D,E,F
Pyrophoric liquids, category 1
Pyrophoric solids, category 1
Self-heating substances and mixtures
Substances and mixtures, which in contact with water, emit flammable gases, categories 1,2,3
Organic peroxides, Types B,C,D,E,F
GHS07
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
European Hazard Symbols
Harmful Harmful (X)
Flammable Flammable (F)
GHS Hazard statements
H225-H304-H315-H319-H335
GHS Precautionary statements
P210-P301+P310-P303+P361+P353-P305+P351+P338-P405-P501A
Risk Statements
11-36/37/38-65
Safety Statements
9-16-26-29-33-37-62
UN Number
UN3295
Packing Group
II
Product Information
Purity
98+%
Physical Property
Flash Point
-10°C(14°F)
Density
0.736
Melting Point
-90°C
Refractive Index
1.4140
Boiling Point
84-86°C
Molecule Details
No Data Available
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Molecular Spectra
No Data Available
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References
• 2-Alkynes are metallated almost exclusively at the terminal position by t-BuLi + TMEDA in ether. Subsequent reaction with, e.g. TMS chloride gives propargylic silanes: Synthesis, 111 (1984).
• On heating under pressure with norbornene and CO in the presence of Dodecacarbonyltriruthenium, 10507, alkynes undergo aromatization to give condensed hydroquinones: Organometallics, 17, 766 (1998):