Triisopropyl phosphite (CAS 116-17-6) is supplied by Monuo Chemical for specialty chemical and custom synthesis purchasing. It is also referenced as phosphorous acid triisopropyl ester and tripropan-2-yl phosphite. Buyers typically search by product name or CAS when sourcing trialkyl phosphite reagents for organic synthesis and specialty intermediate projects.
Key Specifications at a Glance
| Product Name | Triisopropyl phosphite |
|---|---|
| CAS Number | 116-17-6 |
| Molecular Formula | C9H21O3P |
| Molecular Weight | 208.24 g/mol |
| Chemical Class | Trialkyl phosphite / organophosphorus reagent |
| Appearance | Clear liquid (supplier literature) |
| Density | About 0.844 g/mL at 25 °C (lit.) |
| Purity / Specification | 95% by GC; confirm assay on the batch COA |
| Typical Use Area | Organic synthesis reagent; specialty intermediate supply |
| Category | Custom synthesis |
| Documents | COA, TDS, SDS on request |
| Supply Origin | China | Worldwide shipping |
What Is Triisopropyl phosphite?
Triisopropyl phosphite (CAS 116-17-6) is the triisopropyl ester of phosphorous acid (P(III)). Molecular formula C9H21O3P; molecular weight about 208.24 g/mol. Always match CAS 116-17-6 on the batch COA.
ChemicalBook and supplier literature describe it as a versatile organophosphorus reagent and intermediate: insecticide intermediate supply, vinyl-stabilizer component, lubricant additive and specialty solvent applications, as well as Perkow-type and related phosphonate / phosphite chemistry. It is moisture-sensitive. Monuo Chemical supplies Triisopropyl phosphite as a specialty chemical raw material under Custom synthesis, with batch identity documentation (COA / SDS). Finished-product claims, labeling and local regulatory filings remain the brand manufacturer’s responsibility. Confirm grade and assay against the batch COA for your intended method.
Synonyms & Search Names
- Triisopropyl phosphite
- Phosphorous acid triisopropyl ester
- Phosphorous acid, tris(1-methylethyl) ester
- Tripropan-2-yl phosphite
- Triisopropoxyphosphine
- CAS 116-17-6
Applications
In specialty organophosphorus and custom synthesis projects, Triisopropyl phosphite is commonly reviewed for:
- Organic synthesis reagent supply (Perkow-type reactions, phosphonate / phosphonohydrazine routes, and related P(III) chemistry)
- Alternative to triphenylphosphine in selected Mitsunobu workflows to aid product isolation
- Intermediate purchasing for insecticide, vinyl-stabilizer and lubricant-additive R&D
- Catalog purchasing for specialty phosphite ester intermediates
Compare related specialty items such as Methyl Oxalyl Chloride (CAS 5781-53-3) in the same Custom synthesis range.
Handling & Use Notes
- Assay check: Confirm specification / GC assay on the batch COA before use (catalog listing: 95% by GC).
- Container handling: Moisture-sensitive. Keep tightly sealed; minimize open-container time and protect from moisture during sampling.
- Process fit: Verify compatibility with metals, seals and process solvents before scale-up.
- Safety: Follow the SDS for storage, PPE and waste handling. Use the batch SDS as the controlling safety document.
Need assay or packing discussion? Email [email protected] or use the contact form.
Packaging, Storage & Logistics
| Standard Pack Sizes | 50 g / 100 g bottles; 500 g / 1 kg packs (custom packing available) |
|---|---|
| Storage | Keep sealed, dry and protected from moisture, light and heat. Follow the batch COA and SDS |
| Shelf Life | Confirm shelf life on the COA for each lot |
| MOQ | Commercial MOQ discussed per project (often from 50 g); larger packs available on request |
| Lead Time | Stock items often ship promptly; custom pack / large lots typically 7–14 working days |
Quality & Documentation
For Triisopropyl phosphite (CAS 116-17-6), Monuo Chemical can provide:
- Certificate of Analysis (COA)
- Technical Data Sheet (TDS) and Safety Data Sheet (SDS)
- CAS / product-name confirmation for your purchase file
- Flexible packing from grams to kilograms
- FOB / CIF / DAP terms as agreed
Our team aims to return technical data and quotations within 24 hours. See also Custom synthesis.
Request a Quote
Share your target assay, pack size and destination. We will confirm availability and documentation for Triisopropyl phosphite CAS 116-17-6.
Request a Quote | Email: [email protected]
Frequently Asked Questions
What is Triisopropyl phosphite (CAS 116-17-6)?
It is the triisopropyl ester of phosphorous acid, a moisture-sensitive P(III) organophosphorus reagent. Monuo Chemical lists it under Custom synthesis. Match CAS 116-17-6 on the batch COA.
Is Triisopropyl phosphite the same as Triisopropyl phosphate?
No. Triisopropyl phosphite (CAS 116-17-6) is P(III); Triisopropyl phosphate (CAS 513-02-0) is P(V). Always put the correct CAS on RFQs and POs.
What is the molecular formula and weight?
Listed values are molecular formula C9H21O3P; molecular weight about 208.24 g/mol. Confirm on the batch COA/TDS.
Where is Triisopropyl phosphite typically used?
Typical R&D uses include Perkow-type and related phosphite chemistry, specialty intermediate synthesis, and selected Mitsunobu workflows. Finished-product claims remain the customer’s responsibility.
What specification do you supply?
A catalog listing for this CAS is 95% by GC. Exact assay is confirmed on the Certificate of Analysis for each lot. Share your target grade when you request a quote.
How should Triisopropyl phosphite be stored?
Keep tightly sealed and dry; protect from moisture, light and heat. Follow the batch SDS and COA for controlling storage conditions.
How do I request a quotation for CAS 116-17-6?
Share target assay, pack size and destination via the Request a Quote page or email [email protected]. We aim to reply within 24 hours.
Which related Custom synthesis products can I review?
You may also review Methyl Oxalyl Chloride (CAS 5781-53-3) and tert-Butylchlorodiphenylsilane (CAS 58479-61-1), or open the full Custom synthesis catalog.
Related Products
- Methyl Oxalyl Chloride (CAS 5781-53-3)
- tert-Butylchlorodiphenylsilane (CAS 58479-61-1)
- Bis(4-methacryloylthiophenyl) Sulfide (CAS 129283-82-5)
- View all Custom synthesis
Disclaimer: Information is for specialty chemical raw-material identification and technical reference. Finished-product claims and regulatory filings remain the customer’s responsibility. Verify each lot against the supplied COA and SDS. Trade terms are FOB / CIF / DAP as agreed.
