Molekula
Methyltriphenylphosphonium bromide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Methyltriphenylphosphonium bromide is a quaternary phosphonium salt used in organic synthesis, particularly in the synthesis of phosphorus ylides and as a phase-transfer catalyst. It is a crystalline solid with a molecular formula of C19H18BrP, a molecular weight of 357.22 g/mol, and is stable at ambient storage conditions. It is classified as dangerous. Molekula supplies Methyltriphenylphosphonium bromide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
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100 g — £43.60 per pack ex VAT · £52.32 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Solid |
| Identification | Conforms to reference |
| Loss on Drying | ≤0.5% |
| Assay | ≥ 98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90029016 |
| CAS Number | 1779-49-3 |
| IUPAC Name | methyl(triphenyl)phosphanium bromide |
| EC Number | 217-218-9 |
| Molecular Formula | C19H18BrP |
| Molecular Weight | 357.22 |
| Exact Mass | 356.033 |
| SMILES | C[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.[Br-] |
| InChIKey | LSEFCHWGJNHZNT-UHFFFAOYSA-M |
| InChI | InChI=1S/C19H18P.BrH/c1-20(17-11-5-2-6-12-17,18-13-7-3-8-14-18)19-15-9-4-10-16-19;/h2-16H,1H3;1H/q+1;/p-1 |
| PubChem CID | 74505 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2931590080 |
| Tariff Code | 2931599090 |
Safety & GHS
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P302+350 IF ON SKIN: Gently wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- C19H18BrP
- CH3PPh3Br
- Methyltriphenyliphosphonium bromide
- methyltriphenylphosphanium bromide
- METHYLTRIPHENYLPHOSPHINE BROMIDE
- MTPPB
- Phosphonium, methyltriphenyl-, bromide
- Phosphonium, methyltriphenyl-, bromide (1:1)
- TRIPHENYLPHOSPHONIUM METHOBROMIDE
- TRIPHENYLPHOSPHONIUM METHYLBROMIDE
Frequently asked questions
What is methyltriphenylphosphonium bromide used for?
It is primarily used as a reagent in organic synthesis, particularly in the synthesis of ylides and Wittig reactions.
What is the chemical formula and molecular weight?
The formula is C19H18BrP with a molecular weight of 357.22 g/mol.
How should methyltriphenylphosphonium bromide be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available?
Available in reagent grade; specific grades may vary based on customer requirements.
Can Molekula supply it in bulk?
Yes, Molekula can supply methyltriphenylphosphonium bromide in bulk quantities upon request.
What documentation comes with the order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.