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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

Neophyl chloride | CAS 515-40-2

A primary chloromethyl group next to a phenyl-bearing quaternary carbon makes neophyl chloride a sterically distinctive alkyl-halide building block for studies and syntheses requiring the PhC(CH3)2CH2 fragment.

CAS515-40-2
Molecular formulaC10H13Cl
Molecular weight168.66 g/mol

Product overview

The carbon bearing chlorine is CH2, but its neighbouring carbon carries phenyl and two methyl groups. Thus the compound is a hindered primary chloride rather than a benzyl chloride or a tertiary alkyl chloride. Neophyl chloride and 1-chloro-2-methyl-2-phenylpropane name the same connectivity. Structure-based qualification is particularly important when comparing similarly named phenylpropyl chlorides. Request an identity method that establishes the chloromethyl position and an assay capable of separating the relevant aromatic and aliphatic components.

Chemical identity

Chemical name
1-Chloro-2-methyl-2-phenylpropane
CAS number
515-40-2
Molecular formula
C10H13Cl
Molecular weight
168.66 g/mol

Application context

Synthetic evaluation uses this molecule when a neophyl fragment with a chloromethyl reaction site is required. The adjacent quaternary centre is an important feature in planning substitution chemistry and interpreting reaction behaviour. Before qualifying an alternative source, compare the structural identity rather than matching only chlorine content. Discuss related chlorides, corresponding alcohol or unsaturated components when relevant to the manufacturer’s route, and align water or acidity criteria with the intended next step.

Chemistry and synthetic role

PhC(CH3)2CH2Cl contains a primary C–Cl bond beside a quaternary benzylic carbon.

Quality review

Confirm chloromethyl connectivity

Distinguish neophyl chloride from benzylic and tertiary chloride structures.

Resolve route-related components

Define a GC impurity panel relevant to the manufacturing route.

Review water and acidity

Set criteria according to the intended substitution chemistry.

Preparing a specification

State neophyl chloride and CAS, structural identification, GC assay and the relevant chloride/alcohol impurity panel, with water or acidity where needed.

Packaging and storage

Packaging and net weight are agreed for the selected grade, order quantity and destination. Check the actual supplier SDS and label for storage and transport requirements.

Documentation

Request a batch COA, SDS and the analytical methods for the acceptance criteria below. Confirm which supporting chromatograms and identity data are available from the selected manufacturer.

Procurement questions

Is chlorine bonded directly to the phenyl-bearing carbon?

No. It is bonded to the adjacent CH2 group.

Does chlorine content replace GC?

It does not identify individual organic components.

Is a generic alkyl-chloride specification enough?

The structural identity and process-specific impurity profile must also match.

Technical sources
  1. PubChem CID 68191NCBI / PubChem
  2. 2-Chloromethyl-2-phenylpropane 246506Merck / Sigma-Aldrich
  3. 1-Chloro-2-methyl-2-phenylpropaneNIST Chemistry WebBook