Tech Serve Solutions

Trimethyl orthoformate

CAS 149-73-5CH(OCH3)3Chemical Synthesis

Trimethyl orthoformate (CAS 149-73-5), molecular formula CH(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
Trimethoxymethane
Trimethyl orthoformate
Acetals/Ketals/Ortho EstersBuilding BlocksChemical SynthesisOrganic Building BlocksOxygen Compounds
01 /Properties
Molecular weight106.12
Linear formulaCH(OCH3)3
Assay99%
Boiling point101-102 °C(lit.)
Density0.97 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.379(lit.)
Vapour pressure23.5 mmHg (20 °C)40 mmHg (30 °C)57 mmHg (40 °C)
Vapour density3.67 (vs air)
ApplicationTrimethyl orthoformate was used as dehydrating agent in the preparation of surface-modified colloidal silica nanoparticles1.
02 /Safety & handling
Flammable
Flammable
Harmful / irritant
Harmful / irritant
Danger

Hazard statements

  • H225Highly flammable liquid and vapour
  • H319Causes serious eye irritation

Precautionary statements

  • P210Keep away from heat, sparks and open flames. No smoking
  • P305IF IN EYES
Protective equipmentEyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point9 °C / 48.2 °F
Transport (UN / ADR)UN 3272 3 / PGII
Water hazard class (WGK, DE)1
Hazard codes (EU)F,Xi
Risk statements (R)11-36
Safety statements (S)9-16-26

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

03 /Identifiers & registry
CAS number
149-73-5
MDL number
MFCD00008483
PubChem substance
24846805
Beilstein registry
969215
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 orthoformate?

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Trimethyl orthoformate (CAS 149-73-5), molecular formula CH(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 orthoformate does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Trimethyl orthoformate 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 orthoformate?

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Trimethyl orthoformate has CAS number 149-73-5 and molecular formula CH(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 orthoformate?

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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 orthoformate 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 orthoformate be stored?

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Store Trimethyl orthoformate 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 orthoformate used for?

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Trimethyl orthoformate 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 orthoformate?

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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 orthoformate in a specific grade or volume?

Request a quote