What is the significance of the "cis" configuration in CAS 7642-04-8?

The "cis" (or Z) configuration means the alkyl groups are on the same side of the double bond. This stereochemistry affects the molecule's physical properties (like boiling point) and its reactivity, particularly in stereospecific synthesis where the geometry of the starting material dictates the structure of the final product.

How should cis-2-Octene be stored?

cis-2-Octene is a flammable liquid. It must be stored in a cool, dry, well-ventilated area, away from sources of ignition, heat, and direct sunlight. It should be kept in tightly sealed containers, separate from strong oxidizing agents.

What are the main applications of this specific isomer?

It is primarily used as a chemical building block in organic synthesis to introduce an octyl group or a defined double bond. It is also used in the research of alkene metathesis and as a reference standard for analyzing petrochemical streams.

cis-2-Octene CAS 7642-04-8

cis-2-Octene, scientifically designated as (Z)-2-Octene with CAS 7642-04-8, is a high-purity internal alkene featuring a specific cis-stereochemistry at the carbon-carbon double bond. This colorless, flammable liquid serves as a critical fine chemical intermediate for advanced organic synthesis. Unlike generic octene mixtures, this purified geometric isomer allows researchers and manufacturers to maintain precise stereochemical control in downstream reactions, such as hydroboration, epoxidation, and polymerization. It is extensively utilized in the production of specialty polymers, pharmaceutical intermediates, and as a calibration standard in gas chromatography. We offer high-purity grades (≥96%) to ensure reaction consistency, available from lab scale to bulk industrial drums. All shipments are compliant with hazardous material regulations and accompanied by MSDS, TDS, and COA.

CAS: 7642-04-8
Synonyms: (Z)-2-Octene, (Z)-Oct-2-ene, cis-Oct-2-ene, beta-cis-Octene, 2-Octene (cis isomer), C8 Internal Olefin.
Einecs: 203-894-2,231-577-9
Molecular Formula: C₈H₁₆
Grade: Industrial grade 99%
Package: 200kg iron drum or 50kg plastic drum packaging

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Product Description

1 Physicochemical properties

2 Application Areas

3 Storage conditions

4 Safety precautions

Physicochemical properties

Property	Value
Molecular Formula	C₈H₁₆
Molecular Weight	112.21 g/mol
CAS Number	7642-04-8
Appearance	Colorless to almost colorless clear liquid
Density	0.73 g/mL (at 25°C)
Melting Point	-100.2°C
Boiling Point	126°C
Flash Point	21°C
Refractive Index	1.4140 to 1.421
Solubility	Insoluble in water; soluble in organic solvents (e.g., alcohols, ketones)
Stability	Generally stable under normal conditions; avoid strong oxidizers, acids, and bases
Vapor Pressure	Not widely reported
LogP (Octanol-Water)	3.14280 to 4.374 (estimated)
Viscosity	Not widely reported
Autoignition Temperature	Not widely reported
Explosive Limits	Not widely reported
Odor	No specific odor information available

Application Areas

Chemical synthesis: As an organic synthesis intermediate, it is used to prepare fragrances or polymer monomers
Industrial solvents: When used as solvents in specific formulations, attention should be paid to their flammability

Storage conditions

Environmental requirements: Sealed and stored in a cool and dry place, avoiding light and high temperature
Isolation measures: Store separately from oxidants, strong acids and bases
Packaging specification: Use anti-static containers to ensure sealing and prevent volatilization

Safety precautions

Health hazards: Inhalation, oral ingestion, or skin contact may cause irritation, high concentrations are anesthetic
Explosion risk: Flash point 21 ° C, flammable liquid, vapor can form explosive mixtures when mixed with air
Emergency response
Skin contact: Immediately rinse with soapy water and clean water
Eye contact: Rinse continuously with flowing water or saline solution for at least 15 minutes
Leakage treatment: Use sand or inert materials for adsorption, and prohibit discharge into the sewer

FAQ - Technical & Supply Chain

Q:
What is the significance of the "cis" configuration in CAS 7642-04-8?

A: The "cis" (or Z) configuration means the alkyl groups are on the same side of the double bond. This stereochemistry affects the molecule's physical properties (like boiling point) and its reactivity, particularly in stereospecific synthesis where the geometry of the starting material dictates the structure of the final product.
Q:
How should cis-2-Octene be stored?

A: cis-2-Octene is a flammable liquid. It must be stored in a cool, dry, well-ventilated area, away from sources of ignition, heat, and direct sunlight. It should be kept in tightly sealed containers, separate from strong oxidizing agents.
Q:
What are the main applications of this specific isomer?

A: It is primarily used as a chemical building block in organic synthesis to introduce an octyl group or a defined double bond. It is also used in the research of alkene metathesis and as a reference standard for analyzing petrochemical streams.

Documents

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SDS / MSDS for handling, storage, and safety reference
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Product name and CAS number
Application or intended end use
Required purity, grade, or specification
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Packaging, Storage, and Handling Notes

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Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

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Tags:

Alkene Intermediate Hydrocarbon Intermediate Internal Olefin Olefin Intermediate

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