Can trans-3-Methyl-2-hexene be replaced by the cis isomer or an unspecified 3-methyl-2-hexene mixture?

No. CAS 20710-38-7 identifies the trans, or E, geometric isomer. The cis isomer and an unspecified E/Z mixture are different materials. State the required trans content and the permitted cis and positional-isomer limits, with an agreed GC identity and assay method.

What should a purchase specification for trans-3-Methyl-2-hexene include?

Define GC assay, E/Z composition, relevant positional isomers, water, appearance and the required analytical evidence. Also state quantity, packing and intended process use so the offered batch, test method and documentation can be assessed against the same acceptance criteria before shipment.

trans-3-Methyl-2-hexene CAS 20710-38-7

trans-3-Methyl-2-hexene , CAS 20710-38-7 , is the E geometric isomer of 3-methylhex-2-ene. Its molecular formula is C7H14 and molecular weight is 98.19 g/mol. Buyers should define E-isomer content, Z-isomer and positional-alkene limits, GC assay, residual precursors and stabilizer status. Because it is a volatile, flammable hydrocarbon, packaging, headspace, ignition control and transport requirements must be reviewed for the actual quantity.

CAS: 20710-38-7
Synonyms: trans-3-Methyl-2-hexene, (E)-3-Methylhex-2-ene, (E)-3-Methyl-2-hexene, E-3-Methyl-2-hexene
Molecular Formula: C₇H₁₄
Grade: Confirm E-isomer content, Z-isomer and positional-isomer limits, GC assay, residual precursors, water and stabilizer status against the current COA; qualify the material in the intended reaction.
Package: State quantity and destination; confirm the current compatible sealed container, closure, headspace or inerting controls, net fill, temperature conditions and dangerous-goods requirements against the SDS before quotation.

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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
Product identity	(E)-3-Methylhex-2-ene
CAS number	20710-38-7
Formula / molecular weight	C₇H₁₄ / 98.19 g/mol
Isomer boundary	E-isomer content must be distinguished from Z-3-methyl-2-hexene and positional heptene isomers
Key purchase controls	Identity, GC assay, E/Z ratio, positional isomers, residual precursors, stabilizer, color and distillation behavior

Applications and grade selection

trans-3-Methyl-2-hexene may be evaluated in controlled addition, oxidation, isomerization and hydrocarbon-reaction studies. Geometric and positional isomers can change selectivity, so application performance should be qualified using the actual offered lot.

Specify minimum E-isomer content and individual limits for Z and positional isomers.
Confirm GC method, residual precursors, stabilizer status and physical handling conditions.
Compare reaction conversion and product distribution under process-relevant conditions.

Storage and handling

Keep tightly closed in compatible flammable-liquid packaging away from heat, sparks, oxidizers and prolonged air or light exposure. Follow the current SDS for headspace, grounding and transport controls.

Safety, documentation and procurement

Use closed transfer and effective ventilation where practicable. Procurement should state isomer specification, intended reaction, quantity, package, destination and dangerous-goods documentation.

FAQ - Technical & Supply Chain

Q:
Can trans-3-Methyl-2-hexene be replaced by the cis isomer or an unspecified 3-methyl-2-hexene mixture?

A: No. CAS 20710-38-7 identifies the trans, or E, geometric isomer. The cis isomer and an unspecified E/Z mixture are different materials. State the required trans content and the permitted cis and positional-isomer limits, with an agreed GC identity and assay method.
Q:
What should a purchase specification for trans-3-Methyl-2-hexene include?

A: Define GC assay, E/Z composition, relevant positional isomers, water, appearance and the required analytical evidence. Also state quantity, packing and intended process use so the offered batch, test method and documentation can be assessed against the same acceptance criteria before shipment.

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

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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