

Trimethyl orthoformate (CAS No: 149-73-5), the simplest orthoester, serves as a high-purity C1 building block essential for synthesizing methoxymethylene groups and heterocyclic ring systems within the U.S. pharmaceutical and agrochemical sectors. As a versatile reagent for formylation and methylation, it is critical for producing high-value active ingredients, including azoxystrobin and picoxystrobin fungicides, as well as antibacterial drugs in the floxacin family. The global market for this specialty intermediate is projected to reach approximately $590 million by 2033, driven by a 6.5% CAGR and a growing demand for efficient, GMP-compliant synthesis routes in domestic and international pharmaceutical hubs. As an established Trimethyl orthoformate supplier providing 99.8% purity, we ensure dependable supply, consistent quality, and complete regulatory documentation, including Trimethyl orthoformate CoA and Trimethyl orthoformate TDS across all grades. Beyond supply, we support partners through the entire product lifecycle, from route scouting, process and formulation development, and analytical method development to scale-up, process optimization, and pilot-to-commercial manufacturing. Our teams also assist with GMP-compliant quality assurance, regulatory documentation, and global supply chain and logistics coordination.


Trimethyl orthoformate (CAS No: 149-73-5), the simplest orthoester, serves as a high-purity C1 building block essential for synthesizing methoxymethylene groups and heterocyclic ring systems within the U.S. pharmaceutical and agrochemical sectors. As a versatile reagent for formylation and methylation, it is critical for producing high-value active ingredients, including azoxystrobin and picoxystrobin fungicides, as well as antibacterial drugs in the floxacin family. The global market for this specialty intermediate is projected to reach approximately $590 million by 2033, driven by a 6.5% CAGR and a growing demand for efficient, GMP-compliant synthesis routes in domestic and international p...
Elemental Derivatives
Miscellaneous Functional Intermediates
General Functional Reagents
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Chemical Properties & Specifications
Flammable liquid (Cat. 2), Eye Irritation (Cat. 2)
P210, P233, P280, P305+P351+P338
A versatile reagent and building block used for the introduction of protecting groups for aldehydes and ketones through the formation of acetals and ketals
A chemical intermediate utilized in the synthesis of active pharmaceutical ingredients such as Vitamin B1, sulfa drugs, and various antibiotics
A key intermediate used in the production of herbicides, insecticides, and fungicides for crop protection
A moisture-scavenging agent employed to prevent the hardening of polyurethane or epoxy coatings due to hydration
A reactant used in the synthesis of aroma compounds and flavor additives for the fragrance industry
A component used in the production of dyeing assistants and finishing agents to enhance the performance of fabrics
A monomer or comonomer used in the production of specialty polymers for industrial coatings, adhesives, and materials science
Trimethyl orthoformate, also known as TMOF or trimethoxymethane, is the simplest orthoester and a colorless liquid. It is primarily used as a reagent and chemical intermediate in organic synthesis for forming methyl ethers, protecting functional groups like aldehydes and ketones, and synthesizing heterocyclic ring systems.
This compound is widely utilized in the pharmaceutical, agrochemical, flavor and fragrance, textile, and coatings industries for the production of vitamins, antibiotics, herbicides, fungicides, and specialty polymers.
It is a volatile, flammable liquid miscible with alcohols, ethers, and most organic solvents, though it reacts slowly or decomposes when meeting water.
Standard specifications include CAS number 149-73-5, a purity typically ≥98%, clear colorless appearance, and the availability of documentation such as COA, TDS, impurity reports, and regulatory compliance documents.
Scimplify has capabilities for global distribution and custom synthesis through an integrated network of manufacturers and logistics partners with reliable lead time.
The product is export ready with a standard MOQ starting from 100 kgs, with lead times for international customers depending on the shipping destination and specific grade.
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