Molekula
Triisopropyl phosphite
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
Triisopropyl phosphite is a phosphorus-containing organic compound used as a ligand in catalysis and as a reagent in organic synthesis. Industrially, it serves as an intermediate in insecticide manufacture, a component of vinyl stabilizers, an antioxidant and a lubricant additive. It is a colorless to pale yellow liquid with a pungent odor. CAS: 116-17-6, molecular formula: C9H21O3P, molecular weight: 208.24 g/mol. Store at ambient temperature. Hazard symbol: Danger. Molekula supplies Triisopropyl phosphite 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.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £46.50 per pack ex VAT · £55.80 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless liquid |
| Purity (GC) | ≥90.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 68 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless liquid |
| Odour | Characteristic odor |
| Boiling Point | 94 to 96 °C at 50 mmHg |
| Density | 0.9063 g/cm³ at 20 °C |
| Solubility (other solvents) | Soluble in alcohol, ether, chloroform |
| Vapour Pressure | 0.27 mmHg |
| Refractive Index | 1.4085 |
Source: PubChem CID 8304 (HSDB, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 89967494 |
| CAS Number | 116-17-6 |
| IUPAC Name | tripropan-2-yl phosphite |
| EC Number | 204-130-0 |
| Molecular Formula | C9H21O3P |
| Molecular Weight | 208.24 |
| Exact Mass | 208.1228 |
| SMILES | CC(C)OP(OC(C)C)OC(C)C |
| InChIKey | SJHCUXCOGGKFAI-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H21O3P/c1-7(2)10-13(11-8(3)4)12-9(5)6/h7-9H,1-6H3 |
| PubChem CID | 8304 |
| UN Number | UN3278 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2920.29.0000 |
| Tariff Code | 2920290090 |
Safety & GHS
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Toxic
GHS06
Hazard statements
- H301 Toxic if swallowed
- H315 Causes skin irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- 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
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
- Isopropyl phosphite, ((C3H7O)3P)
- Isopropyl phosphite, tri-
- Phosphorous acid, triisopropyl ester
- Phosphorous acid, tris(1-methylethyl) ester
- Tri-2-propyl phosphite
- Tri-i-propylphosphite
- Triisopropoxyphosphine
- tripropan-2-yl phosphite
- tris(propan-2-yl) phosphite
Frequently asked questions
What is triisopropyl phosphite used for?
It is primarily used as a ligand in organometallic chemistry and as a reagent in the synthesis of phosphorus-containing compounds.
What is the chemical formula and molecular weight of triisopropyl phosphite?
The formula is C9H21O3P with a molecular weight of 208.24 g/mol.
How should triisopropyl phosphite be stored?
It should be stored at ambient temperature, away from moisture and incompatible materials.
What grade is available for triisopropyl phosphite?
It is available in technical grade; custom purity options may be available upon request.
Can Molekula supply triisopropyl phosphite in bulk?
Yes, Molekula can supply triisopropyl phosphite in bulk quantities; please contact sales for details.
What documentation comes with a purchase of triisopropyl phosphite?
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.