Market overview

4-Nitro-2-sulfobenzoic acid potassium salt (CAS 5344-48-9) is a specialised intermediate in the synthesis of N,N-dimethyl-2-aminosulfonyl-4-formamidobenzamide, the sulfonamide building block for the corn herbicide foramsulfuron. Its demand is therefore tied almost entirely to foramsulfuron production and registrations, and the supplier base is small, mostly in China.

The question this report answers
How tied is 4-nitro-2-sulfobenzoic acid potassium salt to foramsulfuron, and who supplies it?

Market Krystal preliminary estimate (2025)
No published size. Assuming 300-1,000 t at USD 8-15/kg, we estimate USD 3-15 mn. Confidence grade C: no reliable published figure; range built from the stated assumptions and narrowed in the full report.

Market dynamics
– Demand: foramsulfuron herbicide intermediate
– Supply: about 17 suppliers, mostly Chinese (ChemicalBook)
– Price and margin: nitration and sulfonation costs
– Regulation: foramsulfuron registrations

Key figures at a glance (third-party, cited)
– Used as an intermediate for the foramsulfuron sulfonamide building block (ChemicalBook)
– About 17 distinct suppliers are listed on ChemicalBook, mostly Chinese
– No reliable standalone market size is published for this CAS

Recent developments among key stakeholders
– Jul 2025: China’s pesticide sector is consolidating; environmental inspections are limiting production windows, smaller producers are exiting, and the collapse of mutual data acceptance is pushing Chinese firms to costlier third-country GLP labs, lengthening registrations (AgroSpectrum)

What this means for the market
Demand is tied to foramsulfuron output in China; consolidation directly affects supply. The report tracks producers.

How published estimates compare
Market Krystal sizes demand from foramsulfuron active-ingredient production and route stoichiometry, and links the analysis to the DPAP (CAS 89392-03-0) report, which covers the other half of the foramsulfuron molecule.

Strategic scenarios to 2047
– Base: crop-protection and generic-drug volumes grow with food demand and patent expiries; intermediates follow their downstream actives, with China and India as main producers.
– Constrained supply: Chinese environmental inspections, export restrictions or Western ‘China-plus-one’ rules tighten intermediate supply; qualified Indian and Western sources gain share and pricing.
– Technology transition: new actives, biologicals and regulatory bans retire older molecules, so demand for a given intermediate can fall sharply when its downstream product loses registration or patent protection.
The swing factor for 4-Nitro-2-sulfobenzoic acid monopotassium salt is foramsulfuron registrations. Signposts: EU and US re-registration decisions, patent expiries, Chinese production curbs, India PLI investments.

What this report delivers
Annual volume (tonnes) and value (USD) for 2026-2035, segmented by application: foramsulfuron, other sulfonamide intermediates; region: China, demand in Americas and Europe. Each segment is backed by a producer capacity table, price benchmarks for 2020-2025 by grade and region, trade-flow analysis and a supplier risk map. Companies assessed include Chinese sulfonylurea intermediate producers, Bayer (foramsulfuron originator), Generic foramsulfuron producers. The 2036-2047 outlook uses three explicit scenarios (base, constrained supply and technology transition) rather than a single extrapolated curve.

Who uses this report
Agrochemical and pharmaceutical process teams, CDMOs, intermediate producers in India and China, and sourcing managers.

Why our approach is evidence-based
Most CAS-level market listings publish a single number with no audit trail, and we regularly find figures that contradict their own growth rates or exceed the size of the market they sit inside. Market Krystal works the other way round. We start from physical evidence: plant capacities, production and trade data, company disclosures, regulatory texts and price records. We build volume and price separately and only then compute value. Every third-party figure is cited, every Market Krystal estimate is labelled with its method and a confidence grade, and conflicts between sources are shown rather than hidden. Confidence grades: A = two or more independent sources agree, or government or company data; B = one published estimate checked against volumes or prices; C = no reliable published figure, so the range is built from stated assumptions and narrowed in the full report.

Methodology and delivery
Prepared by the Market Krystal Chemicals Research Team. Each report is built around the buyer’s question: after purchase, a short scope confirmation fixes the priority regions, companies and applications, and the report is delivered within 5-7 business days with the Excel model behind every estimate, so buyers can audit and change the assumptions.

The purchased delivery includes the PDF report, Excel datasets and customization around the buyer’s priority region, company set, application or commercial question.

What this research answers

The study connects production routes, named suppliers, applications, regional demand, trade, pricing drivers and commercial opportunities for this CAS number. Detailed estimates and company analysis remain inside the purchased report.