Bis[(trimethylsilyl)tributyl]stannyl phosphate
Bis[(trimethylsilyl)tributyl]stannyl phosphate (CAS 74785-85-6), molecular formula [(CH3)3SiO]2P(O)OSn[(CH2)3CH3]3, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
![Bis[(trimethylsilyl)tributyl]stannyl phosphate](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F74785-85-6.png&w=3840&q=75)
| Molecular weight | 531.40 |
|---|---|
| Linear formula | [(CH3)3SiO]2P(O)OSn[(CH2)3CH3]3 |
| Assay | 97% |
| Application | For the preparation of unesterified acyl or sugar phosphates under mild conditions.1 |



Hazard statements
- H301Toxic if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H372Causes damage to organs through prolonged exposure
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P314Get medical attention if you feel unwell
- P501Dispose of contents and container per local regulations
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Transport (UN / ADR) | UN 2788 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 21-25-36/38-48/23/25-50/53 |
| Safety statements (S) | 35-36/37/39-45-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Bis[(trimethylsilyl)tributyl]stannyl phosphate?
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Bis[(trimethylsilyl)tributyl]stannyl phosphate (CAS 74785-85-6), molecular formula [(CH3)3SiO]2P(O)OSn[(CH2)3CH3]3, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.
What grades of Bis[(trimethylsilyl)tributyl]stannyl phosphate does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Bis[(trimethylsilyl)tributyl]stannyl phosphate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Bis[(trimethylsilyl)tributyl]stannyl phosphate?
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Bis[(trimethylsilyl)tributyl]stannyl phosphate has CAS number 74785-85-6 and molecular formula [(CH3)3SiO]2P(O)OSn[(CH2)3CH3]3. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Bis[(trimethylsilyl)tributyl]stannyl phosphate?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of Bis[(trimethylsilyl)tributyl]stannyl phosphate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Bis[(trimethylsilyl)tributyl]stannyl phosphate be stored?
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Store Bis[(trimethylsilyl)tributyl]stannyl phosphate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Bis[(trimethylsilyl)tributyl]stannyl phosphate used for?
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Bis[(trimethylsilyl)tributyl]stannyl phosphate is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Bis[(trimethylsilyl)tributyl]stannyl phosphate?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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