Molekula
Carbethoxymethylene triphenylphosphorane
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
Carbethoxymethylene triphenylphosphorane is a phosphorus ylide used in organic synthesis, particularly in Wittig reactions to form alkenes from carbonyl compounds. It is a solid with a molecular formula of C22H21O2P, a molecular weight of 348.37 g/mol, and should be stored at 2 to 8 °C. CAS number: 1099-45-2. Molekula supplies Carbethoxymethylene triphenylphosphorane 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
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100 g — £85.50 per pack ex VAT · £102.60 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Loss on Drying | ≤ 1.0% |
| Purity | ≥ 98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 17775967 |
| CAS Number | 1099-45-2 |
| IUPAC Name | ethyl 2-(triphenyl-lambda5-phosphanylidene)acetate |
| EC Number | 214-151-7 |
| Molecular Formula | C22H21O2P |
| Molecular Weight | 348.37 |
| Exact Mass | 348.1279 |
| SMILES | CCOC(=O)C=P(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3 |
| InChIKey | IIHPVYJPDKJYOU-UHFFFAOYSA-N |
| InChI | InChI=1S/C22H21O2P/c1-2-24-22(23)18-25(19-12-6-3-7-13-19,20-14-8-4-9-15-20)21-16-10-5-11-17-21/h3-18H,2H2,1H3 |
| PubChem CID | 70670 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2931.49.00.80 |
| Tariff Code | 2931498090 |
Safety & GHS
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
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
- ((Ethoxycarbonyl)ethylidene)triphenylphosphorane
- (Ethoxycarbonylmethylene)triphenylphosphorane
- Acetic acid, (triphenylphosphoranylidene), ethyl ester
- Acetic acid, 2-(triphenylphosphoranylidene)-, ethyl ester
- Carbethoxytriphenylphosphonium methylide
- Ethyl (triphenylphosphoranylidene)acetate
- ethyl 2-(triphenyl-lambda5-phosphanylidene)acetate
- Ethyl 2-(triphenylphosphoranylidene)acetate
- Phosphorane, (carboxymethylene)triphenyl-, ethyl ester
- Triphenylcarbethoxymethylenephosphorane
Frequently asked questions
What is Carbethoxymethylene triphenylphosphorane used for?
It is primarily used as a reagent in organic synthesis, particularly in the synthesis of alpha,beta-unsaturated esters via the Wittig reaction.
What is the chemical formula and molecular weight?
The formula is C22H21O2P with a molecular weight of 348.37 g/mol.
How should this compound be stored?
Store at 2 to 8 °C in a cool, dry place, protected from light and moisture.
What grade is available?
Available in technical grade; specific purity details can be provided upon request.
Can Molekula supply this in bulk?
Yes, Molekula can supply Carbethoxymethylene triphenylphosphorane in bulk quantities—please contact sales for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation is available upon request.
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.