Are 2,5-Dimethylheptane and 3,6-Dimethylheptane the same structure?

Yes. Numbering the same heptane chain from the opposite end changes the locants from 2,5 to 3,6; both can describe CAS 2216-30-0. This does not make other C9H20 isomers equivalent, so match the CAS number, structure and chromatographic identity.

Which controls should be specified for 2,5-Dimethylheptane?

Define GC assay, identified C9 isomers and other hydrocarbon impurities, water, distillation range, density or refractive index, color and nonvolatile residue. Include quantity, package and destination, and use the current SDS to confirm flammable-liquid transport, storage and transfer controls.

2,5-Dimethylheptane CAS 2216-30-0

2,5-Dimethylheptane, CAS 2216-30-0, is also known as heptane, 2,5-dimethyl-. It is a branched C9 hydrocarbon. For analytical, synthesis or technical review, define the required identity evidence, GC assay, isomer profile, water and distillation range before requesting a lot-specific COA and quotation.

CAS: 2216-30-0
Synonyms: 2,5-Dimethylheptane; Heptane, 2,5-dimethyl-
Molecular Formula: C₉H₂₀
Grade: GC assay, isomer profile, water, distillation range, intended use
Package: Confirm compatible sealed packaging, oxidation or static-control needs and dangerous-goods transport conditions.

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Product Description

1 Product Identity and Specification

2 Applications and Grade Selection

3 Storage and Packaging

4 Safety and Documentation

Product Identity and Specification

Item	Information to Confirm
Product Name	2,5-Dimethylheptane
CAS / ECHA list no.	2216-30-0 / 621-914-1
Molecular Formula	C₉H₂₀
Molecular Weight	128.26 g/mol
Material Type	Branched hydrocarbon
Grade / Key Specifications	GC assay, isomer profile, water, distillation range, intended use
Available Form	Confirm against the current specification and offered form
Documents	Current COA, TDS and SDS for the offered grade

Applications and Grade Selection

2,5-Dimethylheptane is evaluated for specialty hydrocarbon, synthesis and analytical evaluation. Grade selection should be based on GC assay, isomer profile, water, distillation range, intended use and application testing, not on a generic purity, grade or performance claim.

Storage and Packaging

Confirm compatible sealed packaging, oxidation or static-control needs and dangerous-goods transport conditions.

Safety and Documentation

Review the current SDS before handling 2,5-Dimethylheptane. Confirm hazards, PPE, incompatibilities, emergency measures, transport classification and receiving-site controls for the exact supplied form; the product page is not a substitute for lot and shipment documents.

FAQ - Technical & Supply Chain

Q:
Are 2,5-Dimethylheptane and 3,6-Dimethylheptane the same structure?

A: Yes. Numbering the same heptane chain from the opposite end changes the locants from 2,5 to 3,6; both can describe CAS 2216-30-0. This does not make other C9H20 isomers equivalent, so match the CAS number, structure and chromatographic identity.
Q:
Which controls should be specified for 2,5-Dimethylheptane?

A: Define GC assay, identified C9 isomers and other hydrocarbon impurities, water, distillation range, density or refractive index, color and nonvolatile residue. Include quantity, package and destination, and use the current SDS to confirm flammable-liquid transport, storage and transfer controls.

Ordering & Documentation

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

Documents

Tell us which documents your procurement team needs. Before an order, we will check whether the quoted source can provide them for the offered lot.

Quotation

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

Sample & Supply

Ask whether samples, trial quantities or repeat orders are possible. We will check each request against the sourced product and current offer.

Storage & Shipping

Product-specific conditions are confirmed before order.

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