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1-Hexyne

CAS No.
693-02-7
Chemical Name:
1-Hexyne
Synonyms
Hex-1-yne;Hexyne;1-Hexine;Butylacetylene;1-Hexin;1-HEXYNE;5-Hexyne;HEXYNE(1-);1-Hexyne98%;1-Hexyne>
CBNumber:
CB6746670
Molecular Formula:
C6H10
Molecular Weight:
82.14
MDL Number:
MFCD00009504
MOL File:
693-02-7.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 03:44:31

1-Hexyne Properties

Melting point -132 °C
Boiling point 71-72 °C(lit.)
Density 0.715 g/mL at 25 °C(lit.)
vapor pressure 253 mm Hg ( 37.7 °C)
refractive index n20/D 1.399(lit.)
Flash point −6 °F
storage temp. Store at +2°C to +8°C.
solubility 0.36g/l (experimental)
form Liquid
Specific Gravity 0.715
color Clear colorless
Water Solubility Miscible with organic solvents. Immiscible with water.
BRN 635687
Henry's Law Constant 2.6×10-4 mol/(m3Pa) at 25℃, Brockbank (2013)
Stability Stable. Incompatible with strong oxidizing agents. Highly flammable - readily forms explosive mixtures with air.
InChI 1S/C6H10/c1-3-5-6-4-2/h1H,4-6H2,2H3
InChIKey CGHIBGNXEGJPQZ-UHFFFAOYSA-N
SMILES CCCCC#C
CAS DataBase Reference 693-02-7(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 5FZF2F38F5
NIST Chemistry Reference 1-Hexyne(693-02-7)
EPA Substance Registry System 1-Hexyne (693-02-7)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Exclamation Mark (GHS07)Health Hazard (GHS08)
GHS02,GHS07,GHS08
Signal word  Danger
Hazard statements  H315-H319-H304-H225
Precautionary statements  P501-P240-P210-P233-P243-P241-P242-P264-P280-P370+P378-P331-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P332+P313-P301+P310-P403+P235-P405
target organs Respiratory system
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  F,Xn,Xi
Risk Statements  11-36/37/38-65
Safety Statements  16-26-36-62-9-33-7/9
RIDADR  UN 3295 3/PG 2
WGK Germany  3
RTECS  MQ9691000
10-23
Autoignition Temperature 263 °C
Hazard Note  Irritant
TSCA  TSCA listed
HazardClass  3
PackingGroup  II
HS Code  29012980
Storage Class 3 - Flammable liquids
Hazard Classifications Asp. Tox. 1
Eye Irrit. 2
Flam. Liq. 2
Skin Irrit. 2
STOT SE 3
Limited Quantities 1.0 L (0.3 gallon) (liquid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
NFPA 704
3
1 0

1-Hexyne price More Price(46)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.20643 1-Hexyne for synthesis 693-02-7 25mL $64.1 2026-04-30 Buy
Sigma-Aldrich 8.20643 1-Hexyne for synthesis 693-02-7 100mL $194 2026-04-30 Buy
Sigma-Aldrich 244422 1-Hexyne 97% 693-02-7 25ml $55.9 2026-04-30 Buy
Sigma-Aldrich 244422 1-Hexyne 97% 693-02-7 100ml $168 2026-04-30 Buy
TCI Chemical H0140 1-Hexyne >97.0%(GC) 693-02-7 25mL $35 2026-04-30 Buy
Product number Packaging Price Buy
8.20643 25mL $64.1 Buy
8.20643 100mL $194 Buy
244422 25ml $55.9 Buy
244422 100ml $168 Buy
H0140 25mL $35 Buy

1-Hexyne Chemical Properties, Uses, Production

Chemical Properties

colourless liquid

Uses

1-Hexyne is used in the preparation of tricyclic isoindolinone scaffold by undergoing hydrozirconation and ring-closing metathesis. It is used to prepare trans-1,2-bis(5-thianthreniumyl)alkene tetrafluoroborate by reacting with thianthrene cation radical tetrafluoroborate.

Definition

ChEBI: 1-hexyne is a terminal acetylenic compound that is hexane carrying a triple bond at position 1. It is a terminal acetylenic compound, an alkyne and a volatile organic compound.

General Description

1-Hexyne reacted with thianthrene cation radical tetrafluoroborate to form trans-1,2-bis(5-thianthreniumyl)alkene tetrafluoroborate.

Hazard

Probably flammable.

Purification Methods

Distil it from NaBH4 to remove peroxides. Stand over sodium for 24hours, then fractionally distil it under reduced pressure. Also dry it by repeated vacuum transfer into freshly activated 4A molecular sieves, followed by vacuum transfer onto Na/K alloy and stirring for 1hour before fractionally distilling. [Beilstein 1 IV 1006.]

Global Suppliers ( 163)
Supplier Tel Email Country ProdList Advantage
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18 China 18187 66
Jia Xing Isenchem Co.,Ltd 0573-85285100 18627885956 isenchem@163.com China 9389 66
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
China DongFan Chemical Co.,LTD 86-0571-85151182 China 5681 66
Shandong Xiya Chemical Co., Ltd 13355009207 13355009207 3007715519@qq.com China 18722 57
Sichuan Kulinan Technology Co., Ltd 400-1166-196 18981987031 cdhxsj@163.com China 11674 57

View Latest Price from 1-Hexyne manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-Hexyne 97% pictures 2021-07-02 1-Hexyne 97%
693-02-7
$10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd
1-Hexyne pictures 2020-01-08 1-Hexyne
693-02-7
$1.00 1KG 98%HPLC 10 tons/month Career Henan Chemical Co
  • 1-Hexyne 97% pictures
  • 1-Hexyne 97%
    693-02-7
  • $10.00-15.00
  • 99%+ HPLC
  • Zhuozhou Wenxi import and Export Co., Ltd
  • 1-Hexyne pictures
  • 1-Hexyne
    693-02-7
  • $1.00
  • 98%HPLC
  • Career Henan Chemical Co
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