Tech Serve Solutions

Trimethyl borate

CAS 121-43-7B(OCH3)3Chemical Synthesis

Trimethyl borate (CAS 121-43-7), molecular formula B(OCH3)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.

IUPAC
Boric acid trimethyl ester,Methyl borate
Trimethyl borate
Chemical SynthesisOrganoboratesOrganometallic Reagents
01 /Properties
Molecular weight103.91
Linear formulaB(OCH3)3
Assay≥99.0% (GC)
Gradepurum
Boiling point68-69 °C(lit.)
Density0.932 g/mL at 20 °C(lit.)
Refractive indexn20/D 1.346(lit.)n20/D 1.358
Melting point−34 °C(lit.)
Vapour density3.59 (vs air)
02 /Safety & handling
Flammable
Flammable
Harmful / irritant
Harmful / irritant
Warning

Hazard statements

  • H226Flammable liquid and vapour
  • H312Harmful in contact with skin
  • H319Causes serious eye irritation

Precautionary statements

  • P280Wear protective gloves, clothing and eye/face protection
  • P305IF IN EYES
Protective equipmentEyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point-8 °C / 17.6 °F
Transport (UN / ADR)UN 2416 3 / PGII
Water hazard class (WGK, DE)1
Hazard codes (EU)Xn
Risk statements (R)10-21
Safety statements (S)23-25

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

03 /Identifiers & registry
CAS number
121-43-7
MDL number
MFCD00008346
Beilstein registry
1697939
04 /Quality & supply

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.

05 /Frequently asked questions

What is Trimethyl borate?

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Trimethyl borate (CAS 121-43-7), molecular formula B(OCH3)3, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.

What grades of Trimethyl borate does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Trimethyl borate 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 Trimethyl borate?

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Trimethyl borate has CAS number 121-43-7 and molecular formula B(OCH3)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 Trimethyl borate?

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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 Trimethyl borate 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 Trimethyl borate be stored?

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Store Trimethyl borate 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 Trimethyl borate used for?

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Trimethyl borate 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 Trimethyl borate?

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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.

Need Trimethyl borate in a specific grade or volume?

Request a quote