2-Methyl-1,5-heptadiene (cis- and trans- mixture) TCI M0316

Chemical Identity

CAS No.: 6766-54-7
PubChem: CID 142511·SID 87572391
Formula: C8H14
Molecular weight: 110.20 g/mol

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 2-methylhepta-1,5-diene
SMILES: CC=CCCC(=C)C
InChIKey: LXKRFDPUBWVICN-UHFFFAOYSA-N

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TCI M0316 2-Methyl-1,5-heptadiene, bearing CAS number 6766-54-7, is a hydrocarbon that carries two carbon-carbon double bonds within a single molecule and is supplied as a mixture of cis and trans isomers. The presence of two separate unsaturated groups makes this compound a considerably more versatile non-heterocyclic building block than an ordinary alkene, because researchers can engage either one or both of the double bonds across a synthetic sequence. TCI offers the material in a 5 mL pack size suited to research work and to the preparation of intermediate compounds in the laboratory.

The principal advantage of this diene lies in the difference in character between its two double bonds. One sits at the end of the chain as a relatively exposed vinyl group, while the other lies within the chain in a different steric environment. That distinction opens the door to selective reactions, in which one double bond is modified while the other is left intact and reserved for a later stage of the synthesis. A skeleton carrying two double bonds also makes this compound an attractive candidate for cyclization reactions and for ring-closing metathesis, two approaches widely used in the construction of cyclic structures in modern organic chemistry.

Research laboratories in Indonesia typically draw on a building block of this kind during exploratory synthesis, where a small, well-defined diene is needed to assemble a more elaborate carbon framework. The 5 mL presentation matches the scale of academic and institutional work, in which reactions are run on a research rather than production footing. It fits naturally into the workflow of university chemistry departments and research institutes engaged in preparing intermediates and investigating new synthetic routes.

Related TCI products

Selective functionalization studies: the two double bonds differ in steric environment, so one can be reacted while the other is deliberately preserved for a subsequent transformation step.
Ring-closing metathesis: the molecule carries two separate unsaturated sites within one chain, making it a natural substrate for closing a ring between them.
Cyclization reactions: a diene skeleton of this type supports the construction of cyclic structures, a common objective in modern organic synthesis programs.
Preparation of synthetic intermediates: as a non-heterocyclic building block, it serves as a compact starting fragment for assembling larger and more elaborate carbon frameworks.
General alkene chemistry research: the terminal vinyl group provides a relatively accessible, less hindered reaction site useful for studying addition and related transformations of unsaturated systems.

Brand	TCI
CAS number	6766-54-7
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes	5 mL
Physical form	—
Storage	keep in a cool, well-ventilated place in the tightly closed original container

Isomeric composition: supplied as a mixture of cis and trans isomers

Store the material in a cool, well-ventilated area, keeping the container tightly closed and away from heat, open flame, and sources of ignition. The original supplier container is the preferred vessel; if transfer is required, use clean glassware compatible with hydrocarbon liquids and label it clearly. Handle in a fume hood, and wear safety glasses, gloves, and a laboratory coat. Avoid inhalation of vapors and contact with skin or eyes, and keep the compound separate from strong oxidizing agents. Consult the manufacturer's safety data sheet before first use.

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