1-Bromooctadecane CAS 112-89-0 is a C18 primary alkyl bromide used to introduce a stearyl (octadecyl) chain into surfactants, quaternary ammonium salts, and specialty materials. Shanghai Arise New Material Co., Ltd. supplies 1-bromooctadecane as a light yellow powder (C18H37Br, MW 333.39, typical purity ≥99%) for buyers who need a defined long-chain alkylating agent rather than a mixed C16–C18 cut.
Start with chain length, not with a generic "stearyl bromide" description. 1-Bromooctadecane is not interchangeable with 1-bromohexadecane or 1-bromododecane if your finished quat or modifier specification is locked on C18. Order by CAS 112-89-0, assay, melting range, and appearance so incoming QC can reject mixed-chain lots.
Typical uses help you judge grade. 1-Bromooctadecane CAS 112-89-0 is a reagent in organic synthesis, including long-chain functionalization of carbon nanomaterials such as shortened single-walled carbon nanotubes. It is also a raw material for dimethyldistearylammonium bromide used as a bentonite modifier, and it appears in the synthesis of stearyl glycyrrhetinate and antibacterial quaternary ammonium compounds. In all of these jobs it remains an intermediate, not a finished cosmetic or drug.
Read the physical data before you plan charging. The product melts around 25–30°C, boils around 214–216°C, and has a density of about 0.976 g/cm3 (EINECS 204-013-4). In a cool warehouse it may be a solid or a soft powder; plants often need a gentle melt procedure that does not overheat or discolor the lot. Packing is commonly 1 kg, 25 kg, or 1000 kg bags, or as agreed. Sealed storage typically supports a 24-month shelf life.
Quality checks should include assay ≥99%, color, water, residual acidity, and related chain-length bromides. Materials and personal-care intermediate users also care about odor and metal traces. Ask for a lot-specific COA, SDS, and retain a sample from each drum or bag.
Storage is simple but strict. Keep 1-bromooctadecane in a tightly closed container, cool, dry, and well ventilated, preferably below 15°C and protected from light, because the material is light-sensitive. Keep it away from strong oxidizers and strong bases. GHS files commonly list skin irritation and an aspiration hazard if swallowed material enters the airways. Use goggles, gloves, suitable clothing, and a dust mask when handling powder. Do not sweep dusty spills into drains.
Shanghai Arise New Material Co., Ltd. can provide samples, flexible MOQ, and export documents (COA, MSDS, invoice, packing list). Lead time is typically 6–10 days by courier or air, or longer by sea.
If you are locking a C18 alkylating agent for quats, bentonite modifiers, or materials work, request 1-bromooctadecane CAS 112-89-0 with a current COA. Tell us whether you charge it as a melt or as a solid so packing and melting range can match your process.
