Methyl 3-amino-2-fluorobenzoate, CAS 1195768-18-3, is a fluorinated anthranilate-type building block whose commercial interest derives entirely from how difficult it is to make cleanly. The target skeleton is simple, C8H8FNO2 with a molar mass near 167 grams per mol, yet the value-defining question is regiochemical: the fluorine must sit ortho to the ester and meta to the newly installed aniline nitrogen, and the unwanted isomers differ from the wanted one by nothing more than the position of two substituents on one ring. That makes separation an analytical and crystallisation problem rather than a trivial distillation.
Supply is correspondingly CDMO-shaped. Material is typically contracted either as research-use-only grade for medicinal chemistry programmes exploring fluorinated heterocycles such as quinazolinones, benzimidazoles and related fused systems, or as characterised non-GMP and GMP campaign material once a development programme justifies validated methods and formal change control. It has no approved therapeutic indication of its own and is supplied as an intermediate or research chemical for industrial and laboratory use only, not as any finished medicinal or consumer product.
Three technical themes determine whether a supplier is selected. First, isomer control and the ability to resolve the usual companion isomers by validated chromatographic methods. Second, arylamine genotoxic-impurity reasoning: the molecule is itself an aromatic amine, so customers require a defensible ICH M7 position and purge evidence within their own processes. Third, hydrolytic discipline, because the methyl ester readily reverts to the free acid. Together these convert a nominally simple ester into a documentation-heavy specialist article.
The electronic situation of this ring governs both chemistry and handling. Fluorine exerts a powerful inductive withdrawal while donating weakly by resonance, the ester withdraws and the amine donates strongly, so the three substituents interact in ways that make each positional arrangement chemically distinct and analytically separable given adequate method development. The compound is typically supplied as a pale, sometimes pale-brown crystalline material with a modest melting range, and it darkens on prolonged exposure to air and light as aromatic amines characteristically do.
Route classes only are described, with no operating conditions. Three families dominate industrial practice, and selection depends overwhelmingly on which one gives acceptable regiochemical outcome at acceptable separation cost.
Demand is pipeline-driven. Every fluorinated candidate entering development that carries a substituted anthranilate fragment generates a discrete requirement for kilograms of building block, followed by larger volumes if the programme advances. Because discovery portfolios place fluorine almost reflexively now, aggregate demand has grown steadily even as individual programmes fail. A second, steadier driver is impurity control: once a candidate is filed, the same building block must be available as a characterised impurity standard for the life of the product.
Capacity is not dedicated to this molecule but rather to the capabilities it draws on: low-temperature nitration, catalytic hydrogenation, electrophilic fluorination and fine crystallisation. Chinese CDMOs in Jiangsu, Zhejiang, Shandong and Shanghai hold the deepest pool, supported by dense aromatic intermediates infrastructure and in-house chromatography. Indian partners in Hyderabad, Bengaluru, Ankleshwar and Vapi increasingly win GMP campaigns because of their established ICH Q7 documentation and inspector familiarity. European custom-synthesis specialists in Germany, Switzerland, Italy and the Netherlands retain the high-purity, small-volume and reference-material end, and frequently perform route design rather than only execution.
Three tiers are observable. Catalogue-style research material is sold by the gram for discovery use. Programme material at kilogram to multi-kilogram scale, supplied with validated methods and a defined impurity profile, occupies the middle tier. GMP campaign material with starting-material control, ICH Q7 execution, ICH Q3D assessment, stability data and audit access commands a clear premium and is the most defensible position. Costs are dominated by isomer separation, analytical effort, metal-residue control and documentation rather than by raw materials, which explains why price rarely collapses despite competitive supply.
Buyers face two parallel obligations that are sometimes confused. The first concerns the substance offered for physical supply, governed by chemical inventory and hazard law. The second concerns the fate of aromatic amine functionality inside the customer's own synthetic sequence, governed by ICH M7 reasoning applied to the finished candidate. A supplier that understands both is materially more useful than one that supplies certificates.
Environmental questions here centre on solvent intensity, metal management and the honest treatment of fluorine. Because volumes are small, carbon totals are modest, but customers increasingly ask their intermediate suppliers for the same discipline they demand of larger-volume articles.
The dominant burden is purification rather than reaction: multiple crystallisations, chromatographic polishing where used, low-temperature nitration duty and solvent recovery all consume energy. The most effective improvements are replacing chromatographic steps with crystallisation-driven selectivity, recovering and re-distilling polar aprotic and alcoholic solvents on site, and integrating heat around hydrogenation exotherms. Chinese and Indian sites operating on coal-weighted grids face structurally higher cradle-to-gate figures, which is why several have contracted renewable power or installed captive solar to remain competitive in European enquiries.
Traceability obligations concentrate on metal and fluorine accountability. Customers ask which catalyst system was used, whether precious-metal recovery is documented, how spent hydrogenation catalyst is returned, and whether effluent monitoring covers aromatic amine residues. Responsible sourcing declarations covering labour practice and business ethics are now routine even for small campaigns, and a written change-control commitment for any modification of route, solvent or site is considered a contractual minimum. Where reference or impurity-standard material is supplied, ISO 17034 production competence and ISO 17025 calibration competence are increasingly requested.
Although the material is chemically stable enough for ordinary freight, its commercial value is concentrated in the last hundred grams of quality, so logistics must protect appearance and water content as deliberately as assay.
Classification must again be confirmed per supplier data rather than assumed. Consignments are commonly offered as non-restricted goods for transport under the corresponding IMDG, ADR and IATA regimes, or, where the aquatic chronic hazard resulting from the supplier's own ecotoxicological data requires it, as UN 3077 environmentally hazardous substance, solid, not otherwise specified, generally Packing Group III, with the appropriate marine pollutant marking and segregation provisions. Practical despatch practice adds cool dry storage below about twenty-five degrees Celsius, summer temperature management on tropical routes, retention samples held under the same conditions as the shipment, and joint review of any excursion before material enters customer release testing.
Suppliers should position themselves as development partners rather than as vendors, because decision authority in this segment sits with process chemistry and quality functions.
Methyl 3-amino-2-fluorobenzoate is a compact illustration of where fine chemicals value now sits. The rewards accrue not to whoever can assemble the ring, but to whoever can assemble it regioselectively, prove it analytically, answer the genotoxic-impurity and elemental-impurity questions before they are asked, and preserve the quality through pack-out and transit.
As fluorine continues to diffuse through discovery portfolios, demand for well-documented fluorinated anthranilates should firm rather than fade. Suppliers investing in crystallisation-driven isomer control, validated analytics, honest PFAS-adjacency positions and graded RUO to GMP pathways will secure durable programme positions, while those competing on headline assay alone will remain interchangeable. It should be restated that this intermediate has no approved therapeutic indication and is supplied for industrial and research use only.
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Relying on Guidechem's extensive global database, we have mapped the core participants in the current global Methyl 3-amino-2-fluorobenzoate supply chain:
Disclaimer: The content of this white paper is compiled based on public market data and regulatory information available as of 2026. Global chemical regulations are subject to dynamic adjustments. In actual export operations, enterprises must consult professional regulatory advisors or relevant competent authorities to obtain the latest compliance guidance.
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