TCI M0309 3-Methyloctane with CAS number 2216-33-3 is a branched alkane isomer carrying a methyl group on the third carbon atom of the main chain. As a saturated hydrocarbon, the compound is chemically stable and not readily reactive, which means its role in the laboratory is primarily as a reference compound, a model substance, and a non-polar solvent. TCI supplies it in a practical 5 mL pack size suited to analytical laboratories, energy research programmes, and research groups that require a hydrocarbon with a clearly defined structure.
The principal value of this material lies precisely in the subtle difference in branch position compared with related isomers. Moving the methyl group from the second position to the third alters the shape of the molecule and produces different chromatographic separation behaviour, making this compound an important complement for laboratories assembling a series of isomer standards. The substitution at the third position also makes it a molecule possessing a chiral centre, a feature of interest for enantiomer separation studies and for teaching and discussion of stereochemistry. Its chemical stability ensures that reference quality is maintained across a reasonable period of use.
In Indonesia, materials of this kind are most often used by analytical laboratories, petroleum and energy research groups, and university laboratories that need well-characterised hydrocarbons for method development and instrument calibration. The compact 5 mL presentation matches the modest consumption typical of reference work, where small, reliable quantities are used repeatedly rather than in bulk, and it supports laboratories building structured sets of alkane isomer standards.
- Gas chromatography reference standard — the defined branch position produces a distinct retention behaviour that helps analysts identify and confirm peaks in complex hydrocarbon mixtures.
- Isomer series calibration — it complements other methyloctane isomers, allowing laboratories to construct a graded set of standards that demonstrates how branch position shifts separation results.
- Non-polar solvent applications — its saturated, unreactive character makes it a suitable medium where a chemically inert hydrocarbon environment is required during sample preparation.
- Enantiomer separation studies — the chiral centre at the third carbon makes this compound a practical model for developing and evaluating chiral chromatographic separation methods.
- Stereochemistry teaching and discussion — the clearly defined structure with a single chiral centre provides a concrete, well-behaved example for instruction and structural reasoning exercises.
| Brand | TCI |
|---|---|
| CAS number | 2216-33-3 |
| Molecular formula | — |
| Purity | — |
| Category | Chemistry > Building Blocks > Non-Heterocyclic Building Blocks |
| Pack sizes | 5 mL |
| Physical form | — |
| Storage | keep in a tightly closed container under conditions appropriate for volatile organic solvents |
- Chemical class: branched saturated hydrocarbon (alkane isomer)
Store the container tightly closed in a cool, well-ventilated area away from heat sources, open flames, and sources of ignition, in keeping with normal practice for volatile organic hydrocarbons. Keep the material in its original supplier container or in a compatible sealed glass vessel to limit evaporation and preserve reference quality. Handle inside a fume hood, avoid inhaling vapours, and wear standard laboratory personal protective equipment including safety goggles, a laboratory coat, and chemically resistant gloves. Because the compound is supplied in a small 5 mL pack intended for reference use, dispense only the quantity required and reseal the container promptly after each use. Dispose of residues and contaminated materials through the laboratory's established chemical waste procedures.
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