2-Bromopropane
2-Bromopropane is the isopropyl bromide of the pair, used for organic synthesis and as a pesticide and pharmaceutical intermediate. It is supplied as a clear colourless liquid at 99.5% minimum purity with water content at 0.05% maximum, and it is the isomer named in napropamide manufacture.
What You Get With This Grade
- Purity 99.5% minimum by GC with water at 0.05% maximum by Karl Fischer
- The isopropyl handle for Grignard reagents where the branched chain is required
- Named use in napropamide pesticide manufacture, so the route is documented not inferred
- 180 kg drums or tank truck with packing to your requirement
Technical features
- Clear colourless liquid
- Used for organic synthesis, medicine and pesticide intermediates
- Purity determined by gas chromatography
- Water content determined by Karl Fischer titration
Where 2-Bromopropane Is Used
Pesticide intermediates
2-Bromopropane is an intermediate in pesticides and is used in the manufacture of napropamide.
Grignard reagents
Used as a Grignard reagent raw material where an isopropyl group is needed.
Pharmaceutical intermediates
Serves as an intermediate for drugs.
Dye intermediates
Used as an intermediate in dye manufacture.
Buyers This Grade Is Built For
- Agrochemical producers making napropamide or related actives
- Process chemists needing an isopropyl rather than n-propyl halide
- Dye manufacturers requiring a branched propyl bromide
- API producers qualifying a named intermediate with CAS documentation
What It Stops Going Wrong
- Using the straight-chain isomer where the branched one is needed changes the product entirely
- Water in the halide stops the Grignard from initiating
- Undocumented intermediates fail goods-in QA at regulated sites
- Bulk halogenated liquids need a DG routing decision before booking
Quality Index for 2-Bromopropane
| CAS number | 75-26-3 |
|---|---|
| Molecular formula | C3H7Br |
| Molecular weight | 122.99 |
| Appearance | Clear colourless liquid |
| Purity by GC | 99.5% minimum |
| Water content by Karl Fischer | 0.05% maximum |
How It Ships and How to Store It
Packing
- 180 kg per drum
- Tank truck for bulk
- Can be packaged according to user requirements
Storage and transport
- Store and transport as dangerous goods
- Keep containers sealed to protect the water specification
How the Lot Is Released
Appearance, GC purity and Karl Fischer water are verified against the quality index before release, with SDS and COA available for the lot.
What We Can Change
Drum or tank truck packing according to user requirements.
Against the Alternatives
Against 1-bromopropane, 2-bromopropane shares the molecular weight of 122.99 and the 99.5% minimum purity but is the isopropyl isomer. Its water specification is 0.05% rather than 300 ppm. Choose it where the route calls for a secondary rather than a primary bromide, particularly for napropamide.
Handling 2-Bromopropane on Your Site
Written for the person who receives the drum, not for a brochure.
- Confirm which isomer the route requires before ordering — the two are not interchangeable
- Check the Karl Fischer figure before charging a moisture sensitive step
- Ship and store as dangerous goods
- Keep drums sealed against atmospheric moisture pick-up
2-Bromopropane FAQ
What purity and water content does it carry?
99.5% minimum purity by GC with water content at 0.05% maximum by Karl Fischer.
Which pesticide is it used for?
It is used in the manufacture of napropamide and is an intermediate in pesticides generally.
Can it be used as a Grignard reagent raw material?
Yes, it is used as a Grignard reagent and raw material as well as an intermediate for drugs and dyes.
What does it look like?
A clear colourless liquid.
What packing is available?
180 kg per drum or by tank truck, and it can be packaged according to user requirements.
Should I use 1- or 2-bromopropane?
Use 2-bromopropane where the route needs the isopropyl group, for example napropamide. Use 1-bromopropane for aromatic alkylation and for prothiamine and probenecid routes.
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