Can a mixed-isomer 2-Octene grade replace cis-2-Octene CAS 7642-04-8?

Not without confirming the required geometric-isomer specification. CAS 7642-04-8 identifies the cis (Z) isomer, while mixed 2-octene materials can have different cis/trans ratios and different physical or reaction behavior. Compare the GC method, cis assay, trans limit and any limits for other octene isomers.

cis-2-Octene CAS 7642-04-8

cis-2-Octene , also named (Z)-2-octene , is identified by CAS 7642-04-8 and EC 231-577-9 . Its molecular formula is C8H16 and molecular weight is 112.21 g/mol. It is a specific geometric isomer and should not be confused with unspecified 2-octene or a cis/trans mixture. Buyers should define GC assay, cis-isomer content, trans-2-octene and other hydrocarbon impurities, water where relevant, physical form and application requirements before qualifying a synthesis or analytical grade.

CAS: 7642-04-8
Synonyms: cis-2-Octene, (Z)-2-Octene, (Z)-Oct-2-ene, cis-Oct-2-ene, 2-Octene cis isomer
Einecs: 231-577-9
Molecular Formula: C₈H₁₆
Grade: Confirm identity, assay method, water or residual solvents, product-specific impurities and physical form against the current COA; no end-use grade is assumed.
Package: State required quantity and destination; confirm the approved container or cylinder, inerting or stabilizer needs, closure or valve, fill quantity, temperature controls and dangerous-goods requirements against the SDS.

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Product Description

1 Identity and physicochemical profile

2 Applications and grade selection

3 Storage and handling

4 Safety, documentation and procurement

Identity and physicochemical profile

Item	Technical guidance
Correct identity	cis-2-Octene; (Z)-2-octene
CAS / EC	7642-04-8 / 231-577-9
Formula / molecular weight	C₈H₁₆ / 112.21 g/mol
Stereochemical boundary	The cis or Z isomer is distinct from trans-2-octene and unspecified 2-octene mixtures
Key controls	GC assay, cis-isomer content, trans isomer, other hydrocarbons, water where relevant and physical appearance
Physical character	Volatile flammable hydrocarbon liquid; exact release and transport data follow the offered grade and SDS

Applications and grade selection

cis-2-Octene is evaluated as a stereochemically defined internal olefin for controlled organic synthesis, reaction-mechanism work and selected analytical or calibration projects. Suitability for hydroboration, epoxidation, metathesis, polymer research or another route must be confirmed with the actual purity and isomer profile.

Define both total GC assay and minimum cis-isomer content; these are not interchangeable specifications.
Compare reaction conversion, stereochemical outcome and impurity carryover using the buyer’s actual process.
For analytical use, define characterization and traceability requirements beyond a routine bulk COA.

Storage and handling

Keep the container tightly closed in a cool, dry, ventilated area away from heat, sparks, flame and oxidizers. Use grounded, compatible transfer equipment and follow the current SDS for flammable-liquid storage and transport.

Safety, documentation and procurement

Control ignition sources and vapors, and use suitable gloves, eye protection and ventilation according to the current SDS. Procurement should state GC and isomer limits, use, quantity, package, destination, shipping terms and documents.

FAQ - Technical & Supply Chain

Q:
Can a mixed-isomer 2-Octene grade replace cis-2-Octene CAS 7642-04-8?

A: Not without confirming the required geometric-isomer specification. CAS 7642-04-8 identifies the cis (Z) isomer, while mixed 2-octene materials can have different cis/trans ratios and different physical or reaction behavior. Compare the GC method, cis assay, trans limit and any limits for other octene isomers.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

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Storage & Shipping

Product-specific conditions are confirmed before order.

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