The report provides detailed analysis essential for establishing a bentiromide production plant. It encompasses all critical aspects necessary for bentiromide production, including the cost of bentiromide production, bentiromide plant cost, bentiromide production costs, and the overall bentiromide production plant cost. Additionally, the study covers specific expenditures associated with setting up and operating a bentiromide production plant. These encompass production processes, raw material requirements, utility requirements, infrastructure needs, machinery and technology requirements, manpower requirements, packaging requirements, transportation requirements, and more.
Bentiromide Market Analysis: Demand and Supply Analysis, and Sourcing
Bentiromide is a synthetic dipeptide once used as a noninvasive test of exocrine pancreatic function. Chemically it is N-benzoyl-L-tyrosyl-p-aminobenzoic acid, a chymotrypsin substrate that releases para-aminobenzoic acid when the enzyme is active. After an oral dose, chymotrypsin cleaves the peptide bond, and the freed PABA is absorbed and measured in urine as a marker of chymotrypsin secretion. Adria Laboratories marketed it in the US as Chymex. In clinical use, the test screened for pancreatic insufficiency and checked how well enzyme replacement was working. The product was withdrawn from the US market in 1996, and the bentiromide test has since given way to fecal elastase and imaging-based workups.
No branded product is on the market today. Commercial demand for bentiromide is limited, and the old test-kit stockpiles have long cleared. Current demand comes from reference-standard use, analytical method development, and pharmacology research on chymotrypsin substrates. Contract research labs and specialty chemical distributors in the US, Europe, India and China buy the compound in milligram-to-gram quantities. On receipt, buyers check identity and assay by HPLC, related PABA and tyrosine impurities, optical rotation, residual solvents, and melting point. A bentiromide demand and supply analysis has to weigh the withdrawn status, the small supplier base & the narrow research interest that remains.
Summary of the Product, Grades, and Uses
Bentiromide has the molecular formula C23H20N2O5 and a molar mass of 404.42 g/mol under CAS 37106-97-1. Physically it is a white to off-white, crystalline solid, melting near 241 °C at a density of about 1.37 g/cm³. In terms of solubility, bentiromide is poorly soluble in water, but it dissolves in DMSO, methanol, and other polar organic solvents. In every grade, the tyrosine center is fixed in the L-configuration that chymotrypsin recognizes.
Bentiromide is supplied in two grades. Test-reagent grade historically met USP specifications for the Chymex oral solution, while reference-standard grade now sells in milligram-to-gram quantities to research labs for enzyme-substrate & analytical work. Buyers check assay by HPLC, related substances, chiral purity, residual solvents, and melting point.
Historically, the clinical use was the bentiromide test for exocrine pancreatic insufficiency. During the test, a patient swallowed a 500 mg dose. Urinary PABA recovery over six hours was read as a measure of chymotrypsin activity, with low recovery pointing to pancreatic insufficiency. Beyond diagnosis, the test also tracked how well enzyme replacement was working. Research use today covers chymotrypsin-substrate studies, PABA-recovery method work, and reference preparation for analytical labs.
Main End-Uses of Bentiromide
Bentiromide demand today sits almost entirely in research and reference-standard use. Analytical and pharmacology labs buy milligram-to-gram quantities to study chymotrypsin cleavage kinetics, benchmark PABA-recovery assays, and prepare reference material. The work spans kinetics, assay calibration, method transfer & teaching. These buyers need lot-specific certificates, HPLC purity data, chiral purity, and impurity profiles, with typical checks covering assay, related substances, optical rotation, and residual solvents.
Clinical use of bentiromide is essentially zero, since the test was withdrawn in the US. Today, non-invasive pancreatic workups run through fecal elastase, fecal fat, and imaging rather than a PABA-recovery test. Any renewed clinical use would need a fresh regulatory filing with modern chemistry, manufacturing, and controls data. No active commercial sponsor is pursuing that today. Some historical interest in the test persists in the literature, but no active supply follows from it.
Comparator and teaching use accounts for the small remainder of demand. Universities, enzymology labs, and pharmacology groups buy bentiromide as a defined chymotrypsin substrate for coursework, assay validation, and protease-specificity studies. Quantities here are very small, though the per-gram price still sits well above what a bulk API would command, because the material is made in small research campaigns.
Bentiromide Market Risks
Bentiromide faces the specific risks of a withdrawn, low-volume compound with no active commercial channel. Supply is thin, since there is no branded producer, and the material comes from a small set of synthetic-peptide and fine chemical houses. Demand is narrow and tied to research budgets, so order volumes are small and irregular. Any renewed regulatory interest would face a high barrier. A modern filing would need current CMC, bioequivalence, and clinical-utility data that the original Chymex approval predated. Competition is not from other bentiromide makers but from the alternative pancreatic tests that displaced it, mainly fecal elastase and imaging, which keeps clinical demand near zero.
Bentiromide manufacturing carries its own risks because the synthesis has to protect a chiral center and a defined peptide bond. The L-configuration at the tyrosine center has to be held throughout, since racemization would give a substrate chymotrypsin no longer cleaves cleanly. The amide coupling between N-benzoyl-L-tyrosine and p-aminobenzoic acid has to run without over-activation, or related-substance impurities rise. Residual coupling reagents and solvents have to be cleared to specification, and the final crystallization sets both purity and the correct melting point. Most rejected batches trace back to chiral impurity, related-substance failures, and residual solvent.
Bentiromide Production Process and Main Cost Drivers
The bentiromide production process runs the full value chain, from amino acid and PABA intermediate receipt through benzoylation, amide coupling, deprotection, crystallization, drying, and packaging.
- By Amide Coupling of N-Benzoyl-L-Tyrosine with p-Aminobenzoic Acid: The main inputs are L-tyrosine, benzoyl chloride, p-aminobenzoic acid, ethyl chlorocarbonate, N-methylmorpholine, coupling and deprotection reagents, organic solvents & purified water.
Bentiromide production opens with receipt and QC of L-tyrosine, benzoyl chloride & p-aminobenzoic acid. To begin, L-tyrosine is benzoylated at the amino group to give N-benzoyl-L-tyrosine, which keeps the tyrosine center in the L-configuration. That intermediate is then activated as a mixed anhydride, using ethyl chlorocarbonate and N-methylmorpholine, and coupled to the amino group of p-aminobenzoic acid. This forms the dipeptide amide bond that defines bentiromide.
Any protecting group on the acid is then removed under mild conditions. Next, the crude product is worked up and crystallized from a mixed solvent. A recrystallization sets the final purity and the correct melting point near 241 °C. Once dried, the solid is milled, tested, and packed under low humidity. QC covers assay, related PABA and tyrosine impurities, chiral purity, residual solvents, and melting point. The main levers on cost are tyrosine and PABA quality, coupling efficiency, chiral control, and crystallization recovery.
Main Factors Affecting Bentiromide Production Cost
The bentiromide plant setup cost, and the running cost with it, is shaped mainly by the synthetic inputs, and the small batch scale. L-tyrosine, benzoyl chloride, and p-aminobenzoic acid are the core raw materials, and all three are commodity fine chemicals available at modest cost. The activation reagents, ethyl chlorocarbonate and N-methylmorpholine, are small variable costs. Both still need controlled-grade quality. Organic solvents for coupling and crystallization add measurable cost, though solvent recovery offsets some of it. Bentiromide runs in small research campaigns rather than continuous production, so on the plant floor, reactor, and crystallizer on-stream time weighs heavily on unit cost. On the testing side, four checks make up most of the spend: HPLC for related substances, chiral HPLC or optical rotation, residual-solvent GC, and melting point.
Unit cost also moves with batch size and quality grade. A high-purity reference-standard lot takes extra recrystallization and full analytical release, which raises the cost per gram sharply over a crude synthetic lot. GMP documentation, chain-of-custody records, and regulatory upkeep are carried as fixed overhead that is heavy relative to the small tonnage. Fixed overhead here covers the reactor train, the crystallizer, the analytical lab & GMP documentation. A plant running only occasional bentiromide campaigns spreads that overhead over very few kilograms and lands at a high unit cost. Qualifying supply for any renewed regulated use would add months of audit and stability work.
Raw Materials for Bentiromide Production Plant and its Procurement
Raw material sourcing for bentiromide centers on three commodity fine chemicals and a few activation reagents. L-tyrosine is the primary amino acid feedstock, shipping from bulk amino acid suppliers in China, India, Japan & Europe. Its enantiomeric purity has to be controlled, because the L-form is essential. Para-aminobenzoic acid is a widely available fine chemical, and benzoyl chloride ships from bulk chemical suppliers. Ethyl chlorocarbonate and N-methylmorpholine come from fine chemical houses at controlled grade, and organic solvents and purified water complete the process streams.
The cheapest tyrosine is not always the cheapest route to finished bentiromide. A tyrosine lot with elevated D-isomer content pushes up chiral impurity and shrinks the yield of test-active material. PABA quality matters too, since related aminobenzoic acid isomers land in the final product, and benzoyl chloride has to stay dry to avoid hydrolysis losses. The quality-sensitive inputs are tyrosine, PABA, benzoyl chloride & the coupling reagents. Taken together, tyrosine enantiomeric purity, PABA assay, benzoyl chloride quality, solvent water content, and crystallization recovery drive most of the variable cost per kilogram.
These sensitivities shape how a bentiromide plant buys and qualifies its inputs. Contracts specify amino acid enantiomeric excess, PABA isomer limits, reagent grade, and residual-solvent limits. Every incoming lot is quarantined until QC release, which includes an identity and chiral check. Vendor qualification runs through supplier audits, review of amino acid sourcing, and lot-to-lot monitoring, with a file covering identity, enantiomeric excess, isomer limits, and residual solvents. Long-term agreements with two qualified tyrosine and PABA suppliers help steady both cost and timing. Siting the plant near a fine chemical and peptide-synthesis cluster in India, China, or Europe adds freight and compliance advantages over a stand-alone site.
Sustainability and Regulatory Requirements
Bentiromide manufacture raises environmental and occupational concerns that center on benzoyl chloride handling, chlorocarbonate activation and organic-solvent waste. Standard controls rely on closed handling of the acyl chloride and chlorocarbonate, scrubbers for acidic vents, solvent recovery loops, and controlled treatment of the mother liquors. Wastewater carries spent solvents, benzoate, and aminobenzoate residues, and reagent salts that need chemical treatment before discharge. The material runs in small campaigns, so the footprint per campaign is small. The reagent hazard profile still requires proper containment. Work on greener coupling reagents and lower-hazard solvents applies across small-molecule synthesis generally. The main waste streams here are spent solvents, reagent salts, benzoate residues, and mother liquors.
Regulatory obligations for bentiromide follow from its former use in an approved oral diagnostic. In the US, bentiromide API would fall under FDA cGMP oversight per 21 CFR 210/211. A finished diagnostic would meet the historical USP monograph for the Chymex oral solution. In Europe, an EU GMP site with a European Pharmacopoeia-consistent specification would be needed for regulated supply. For reference-standard grade, ISO 9001 controls and full certificates of analysis are the working standard rather than full cGMP. Any renewed diagnostic use would need a fresh regulatory filing with modern CMC and clinical-utility data supporting the test.
CAPEX and OPEX for a Bentiromide Production Plant
A bentiromide plant is a small-molecule synthesis and purification line rather than a large continuous facility. Plant investment starts with amino acid and reagent storage, a jacketed benzoylation reactor, and a coupling reactor for the mixed-anhydride activation. From there come a deprotection vessel, a workup and extraction train, a crystallizer, and a filtration and drying section, with milling and controlled-humidity packaging finishing the line. Utilities cover clean steam, purified water, chilled brine, scrubbed vents for the acyl chloride and chlorocarbonate steps, nitrogen for inerting & solvent recovery. On the QC side, a laboratory block houses HPLC, chiral HPLC or a polarimeter, residual-solvent GC, melting-point apparatus & related-substance testing. Civil works provide GMP or ISO-grade synthesis bays, solvent storage, and a controlled-access warehouse.
Bentiromide operating cost comes from the same materials and control points that shape the process. The variable side is led by L-tyrosine, benzoyl chloride, PABA, and the activation reagents. Solvents, labor, testing, wastewater treatment, packaging, and freight fill out the rest. Cost per gram then comes down to coupling yield, chiral control, and crystallization recovery. Plant economics vary mainly with campaign size, purity grade, whether the site runs a dedicated or shared line, and analytical scope. Taken together, raw material quality, coupling efficiency, chiral purity, solvent recovery, and analytical overhead determine the running cost.
Plant Location and Investment Factors
A workable bentiromide site sits inside a fine chemical and peptide-synthesis cluster that supplies amino acids, PABA, reagents & solvents, with access to a trained synthetic-chemistry workforce. Indian clusters in Hyderabad and Ahmedabad and Chinese clusters near Shanghai and Zhejiang cover the fine chemical base at low cost. European sites in Switzerland, Italy, and Germany suit a regulated or reference-standard producer. The US Northeast and North Carolina hold the specialty small-molecule base for any renewed domestic supply. A good site brings together reagent supply, solvent handling, a skilled workforce, and wastewater treatment. The plant especially needs proper handling for the acyl chloride and chlorocarbonate steps.
For a bentiromide plant, the main investment decision is whether to run a dedicated line or fold the product into a shared synthesis suite. At this volume, a dedicated line is rarely justified. Most output would come from a campaign on a multi-product plant, which keeps capital low but competes for reactor time. Whether to make crude API or fully released reference-standard grade is the other cost decision, since high-purity release adds recrystallization, chiral testing, and full analytical release. Scale has to match a very small addressable market, because bentiromide has no active commercial channel. The project rests on securing steady research and reference-standard orders. For any sponsor reviving the diagnostic, a qualified supply chain and a fresh filing would matter most.
Major Bentiromide Producing Regions
There is no active commercial production region for bentiromide today. Historically, the original Chymex product was made in the US by Adria Laboratories. No branded successor exists after the market withdrawal. Reference-standard and research-grade material now comes from specialty fine chemical and catalog suppliers in the US, Europe, China, and India. A renewed regulated supply would most likely start in an Indian or Chinese fine chemical cluster for low-cost synthesis. A European site would suit a pharmacopoeia-grade diagnostic. Indian clusters in Hyderabad and Ahmedabad and Chinese clusters near Shanghai and Zhejiang run the small-molecule synthesis capacity that suits the route. US and European catalog houses finish and distribute the research-grade lots. Suppliers here include BOC Sciences, MedKoo, Aladdin Scientific, and Selleckchem.
Key Bentiromide Producers
BOC Sciences
- Supplies bentiromide API and custom-synthesis lots from its New York operations & China production base.
- Serves academic & industrial research customers, with scale-up to gram and small-kilo quantities on request.
- Competes on peptide and small-molecule synthesis expertise, custom-lot flexibility & bundled analytical services.
- Quality documentation covers HPLC assay, related substances, residual solvents & lot-specific certificates of analysis.
MedKoo Biosciences
- Distributes bentiromide reference-standard grade for pancreatic-function and chymotrypsin-substrate research from its US base.
- Sources from qualified fine chemical partners and runs in-house QC under ISO 9001 process controls.
- Competes on catalog availability, custom synthesis for larger research quantities & fast quotation.
- Quality work covers HPLC assay, related PABA and tyrosine impurities & lot-specific certificate of analysis.
Aladdin Scientific
- Offers bentiromide at 96% and above purity in multiple pack sizes for research use.
- Ships from its US and China warehousing with SDS and COA provided for each lot.
- Competes on catalog breadth, pack-size flexibility & rapid delivery to research accounts.
- Quality documentation covers HPLC assay, identity confirmation & documented purity.
AdooQ Bioscience
- Distributes bentiromide reference material to academic and industrial research groups from its California base.
- Ships directly to research accounts and through distributors in Europe & Asia.
- Competes on catalog depth, technical support & documented characterization for enzyme-substrate research.
- Quality work covers HPLC assay, related substances & lot-specific data packs.
Selleckchem
- Supplies bentiromide in milligram-to-gram quantities for protease-substrate and pancreatic-function research.
- Ships from Houston, with warehousing in China, Europe & Japan for rapid delivery.
- Competes on catalog breadth, next-day shipment & full analytical characterization with HPLC & MS data.
- Quality work covers assay above 98%, identity confirmation & lot-specific certificates.
Cayman Chemical
- Distributes bentiromide reference material to academic and industrial research groups from Ann Arbor.
- Ships directly to research accounts and through third-party distributors in Europe & Asia.
- Competes on catalog depth, technical support & documented characterization for niche biochemical research.
- Quality documentation covers HPLC assay, identity & lot-specific data packs.