Ethynylcyclopropane

Basic Information

View in Editor

CAS Number

6746-94-7

Molecular Formula

C5H6

Molecular Weight

16.04 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Nitriles

Basic Physical Properties

Melting Point

294 °C (decomp)

Boiling Point

51 °C

Density

0.781 g/mL at 25 °C

Water Solubility

Slightly soluble in water.

Refractive Index

n20/D 1.429

SMILES

View in Editor

C#CC1CC1

InChI

InChI=1S/C5H6/c1-2-5-3-4-5/h1,5H,3-4H2

InChIKey

NPTDXPDGUHAFKC-UHFFFAOYSA-N

LogP

0.6361

Topological Polar Surface Area

0.0 Å²

Hydrogen Bond Donor/Acceptor

0 / 0

Complexity

69.3

Safety Information

View Safety Information

GHS Hazard Pictograms

H225

H315

H318

H412

Hazard Statement

H225 Highly Flammable liquid and vapor
Flammable liquids

H315 Causes skin irritation
Skin corrosion/irritation

H318 Causes serious eye damage
Serious eye damage/eye irritation

H412 Harmful to aquatic life with long lasting effects
Hazardous to the aquatic environment, long-term hazard

Hazard Class

Class 3 Class 3

Synonyms & References

English

Cyclopropylacetylene
EN300-64405
cyclopropyl ethyne
C1984
Cyclopropylethyne; Ethyne, cyclopropyl-; Ethynylcyclopropane
Ethynylcyclopropane #
FT-0636251
EC 425-430-1
ethynyl cyclopropane
InChI=1/C5H6/c1-2-5-3-4-5/h1,5H,3-4H
NS00022652
AKOS007930096
cyclopropyl-acetylene
cyclopropylethyne
F15427
Cyclopropyl acetylene
ethynylcyclo-propane
A835763
Q13506985
C5H6
Cyclopropylacetylene, Neat, 97%
AM20100625
Q-200911
DTXSID80217795
BCP22444
Cyclopropylacethylene
ethynyl-cyclopropane
cyclopropane, ethynyl-
MFCD02181090
Ethynylcyclopropane
6746-94-7

MDL Number

MFCD02181090

Customs Code

2902199090

FAQ

What is Ethynylcyclopropane (CAS: 6746-94-7)?

Ethynylcyclopropane (CAS: 6746-94-7) is an organic compound with the chemical formula C3H4. It features a cyclopropane ring fused with an ethynyl group (-C≡CH), creating a highly strained and reactive molecule. This compound is a colorless liquid with a boiling point around 45°C and is known for its potential in chemical synthesis due to the presence of both ring strain and a triple bond.

What are the main uses of Ethynylcyclopropane (CAS: 6746-94-7)?

Ethynylcyclopropane (CAS: 6746-94-7) is primarily used as a chemical intermediate in pharmaceutical and industrial applications. It serves as a building block for synthesizing complex organic molecules, including certain polymers and materials. Additionally, it is employed in research for studying reaction mechanisms involving alkynes and strained rings, and may have potential in developing new compounds for medical or material science purposes.

Is Ethynylcyclopropane (CAS: 6746-94-7) safe?

Ethynylcyclopropane (CAS: 6746-94-7) requires careful handling due to its reactivity and potential hazards. It is flammable and may cause irritation if inhaled or contacted with skin. Safety standards recommend using proper personal protective equipment (PPE), avoiding exposure to heat or sparks, and following OSHA guidelines. Adequate ventilation and adherence to chemical safety protocols are essential to minimize risks.

How should Ethynylcyclopropane (CAS: 6746-94-7) be stored?

Ethynylcyclopropane (CAS: 6746-94-7) should be stored in a cool, dry, and dark environment to maintain stability. It requires a sealed container made of inert material, such as glass or stainless steel, to prevent exposure to air and moisture. Storage temperature should remain below 25°C, and it should be kept away from heat sources and incompatible substances to ensure safety and longevity.