0%

Table of Contents

Choosing a supplier for Methyl D-(-)-4-Hydroxy-Phenylglycinate isn't just about comparing prices. In 2026, it's really important to double-check the exact chemical identity, the grade, how it’s packaged, and what it’s meant for before you even ask for a quote. Sometimes, small differences in how things are named can cause a lot of confusion, so make sure you verify the CAS number and all specs to match what you need.

A trustworthy supplier should be able to provide a recent certificate of analysis, clear details on testing methods, and traceability for each batch. Don’t hesitate to ask how they measure purity, and whether they can send over chromatograms that support those results. Also, pay attention to practical stuff like lead times, storage tips, packaging condition, and how they handle questions about quality – these can be real life-savers if something gets delayed or if results aren’t what you expected. Honestly, these details are often overlooked but can make a big difference.

This guide isn’t about blindly trusting website claims — it’s about setting criteria to evaluate suppliers thoughtfully. Make sure to compare their documentation, how quickly they respond to technical questions, and whether their quotes are consistent. When you can, request a sample and run it through your own quality checks. Remember, not every supplier will be perfect for every buyer. Also, keep in mind that specific destination requirements might influence what documents you need or how shipments are handled. And it’s always a good idea to double-check those details with a knowledgeable internal team or trusted external advisor.

Of course, there are limits to what you can learn from public listings. Product specs can change, and the info you see online doesn’t always reflect every batch. So use these questions as a starting point to create a shortlist, but always verify the latest details directly with each supplier before you make a final call.

2026 Best Methyl D 4 Hydroxyphenylglycinate Suppliers?
Table of Contents [Hide]
1 What Is Methyl D-4-Hydroxyphenylglycinate?
2 How Is Methyl D-4-Hydroxyphenylglycinate Used?
3 Which Specifications Matter When Choosing a Supplier?
4 How Can Buyers Assess Supplier Quality and Reliability?
5 What Should Buyers Know About Pricing and Lead Times?
6 How to Compare Methyl D-4-Hydroxyphenylglycinate Suppliers in 2026
7 Pharmaceutical Intermediates Market Report Insights: Methyl D-(-)-4-hydroxy-phenylglycinate

What Is Methyl D-4-Hydroxyphenylglycinate?

Methyl D-4-hydroxyphenylglycinate is the methyl ester of D-4-hydroxyphenylglycine, a chiral amino acid derivative. Its structure includes an aromatic ring with a hydroxyl group, an amino group, and a methyl ester. The “D” designation describes its stereochemical form; it is not a quality grade. That distinction matters. The L form has the same atoms but a different three-dimensional arrangement, which can affect its behavior in later synthesis.

This compound is generally treated as a chemical building block rather than a finished medicine. In specialist synthesis, its defined structure can help introduce a particular chiral unit into more complex molecules. Buyers should confirm identity and suitability from current documentation, not rely on the name alone.

Useful checks include assay, chiral purity, water content, and residual-solvent data, supported where appropriate by analytical methods such as NMR or chromatography. Details matter. A small caveat: naming and specifications may differ between suppliers, so compare the actual test methods and acceptance limits.

Even a clean-looking powder tells you little about its stereochemical purity. A careful review of a certificate of analysis, storage conditions, and batch traceability gives a more dependable picture of material quality.

How Is Methyl D-4-Hydroxyphenylglycinate Used?

Methyl D-4-Hydroxyphenylglycinate is not usually a finished medicine. It is a chiral intermediate used to prepare D-p-hydroxyphenylglycine side chains, including those used in cefadroxil manufacture. Some processes hydrolyze its methyl ester before coupling the resulting acid to a beta-lactam core. Routes vary. That distinction is easy to overlook.

Its value lies in stereochemical control and consistent processing. The wrong enantiomer, residual solvents, water, or trace metals can complicate later reactions and purification. WHO’s 2023 AWaRe report sets a target: Access antibiotics should make up at least 60% of national antibiotic consumption. Cefadroxil is classified as an Access antibiotic. This is a stewardship target, not a demand forecast for the intermediate. Buyers should review pharmaceutical-grade documentation, analytical methods, batch traceability, and change-control practices—not assay percentage alone.

Tips: Request a recent certificate of analysis covering identity, assay, chiral purity, and specified impurities. Confirm moisture-protective packaging and retest conditions against your stability protocol. A clean chromatogram helps. It cannot prove the process will scale smoothly; pilot batches still matter. Procurement teams can treat this material like a commodity too early, before checking its precise role in their synthesis.

Which Specifications Matter When Choosing a Supplier?

For Methyl D-4-Hydroxyphenylglycinate, request a specification sheet that defines assay, identity, water content, residual solvents, and related impurities. The name alone does not establish stereochemical quality. Ask for the enantiomeric-purity limit and the test method used to verify it. Small details matter. Review a recent batch-specific certificate of analysis, then check whether its results include actual values or only “conforms.” Validated methods and clear impurity limits make results easier to compare between lots.

Supplier qualification should also cover traceability, change control, packaging, and storage conditions. Ask whether the supplier can provide batch records, retain samples, and advance notice of process changes. WHO’s 2017 study estimated that roughly one in ten medical products in low- and middle-income countries are substandard or falsified. That figure is not specific to this intermediate, but it highlights why documented supply-chain controls matter. Ask for raw data. A limitation worth acknowledging: one certificate cannot prove long-term consistency. Compare several lots, and review how deviations are investigated before approving a source.

How Can Buyers Assess Supplier Quality and Reliability?

For methyl D 4-hydroxyphenylglycinate, start supplier assessment with identity and batch-level evidence, not a polished brochure. Request the current specification, CAS identity, assay method, impurity limits, moisture data, and a recent certificate of analysis (CoA). Confirm the CoA matches the offered batch, and request chromatograms or other analytical records when appropriate. Small gaps matter. A strong assay result alone cannot show whether the manufacturing site or test method changed without notice.

Reliability also means consistent delivery and clear deviation handling. The ISO Survey 2022 counted 1,265,216 valid ISO 9001 certificates across 189 countries and economies. Certification can help screen suppliers, but it does not prove that a specific material meets your requirements. Review audit scope, traceability, change-control records, complaint response times, and backup production plans. Compare at least two lots using your own incoming tests. Buyer testing takes time, but skipping it can be more costly.

Tips: Request a sealed sample, then compare its HPLC profile, water content, and appearance with the production-lot CoA. Put acceptance limits and process-change notification periods in writing. Ask for realistic lead times and known supply constraints. If answers arrive late or conflict, pause qualification and follow up. That is not always a red flag, but it deserves attention.

2026 Best Methyl D-4-Hydroxyphenylglycinate Suppliers? How Can Buyers Assess Supplier Quality and Reliability?

This is a buyer evaluation scorecard, not a verified ranking of named suppliers. Supplier-specific performance should be confirmed with current, lot-specific documents and audits. Agree on the product specification and acceptance limits before comparing offers; requirements can vary by intended use.

Assessment dimension Weight Evidence to request and verify Strong supplier indicators Score
(0–2)
Identity and product definition 15% Written specification stating the exact chemical identity, D-stereochemistry, salt or free form, molecular formula or structure, and agreed analytical identification tests. Product naming and structure are unambiguous; identity is confirmed by suitable methods such as NMR, IR, or other agreed tests. Documents do not rely on a similar-looking product name alone. _____
Assay and chemical purity 15% Current specification and representative, lot-specific certificate of analysis (CoA), including the assay method, result, units, and impurity reporting basis. Acceptance limits are agreed in writing and supported by a validated or appropriately qualified method. The supplier explains whether results are reported on an as-is, dried, or other basis. _____
Stereochemical purity 15% Chiral HPLC or another fit-for-purpose method that distinguishes the relevant enantiomers, with method details and lot-specific results. The specification defines the required D-enantiomer content or enantiomeric purity, and the method can detect the opposite enantiomer at the agreed limit. _____
Impurity and safety profile 12% Impurity profile and risk-based information on residual solvents, water content, elemental impurities, and other relevant process-related impurities, as applicable to the intended use. Limits are justified for the application and supported by test data or documented risk assessments. Any omitted tests have a clear rationale rather than an unsupported blanket claim. _____
CoA quality and batch consistency 10% CoAs from multiple recent batches; batch numbers, test dates, specifications, methods, results, and authorized approval are traceable to the offered material. Records are complete and consistent across batches; out-of-specification results and retesting practices are handled under documented procedures. _____
Quality management system 10% Current quality-system certificates, audit summary or questionnaire, document-control practices, deviation and corrective-action procedures, and relevant quality agreements. Certificates can be independently checked for scope and validity. The supplier can explain how changes, deviations, complaints, and corrective actions are controlled. _____
Traceability and manufacturing transparency 8% Manufacturing-site details, batch traceability, supply-chain role (manufacturer or distributor), and the ability to identify the actual production source where permitted. Material can be traced from the supplied batch to its production source, and the supplier discloses relevant subcontracting or repackaging arrangements. _____
Regulatory and intended-use documentation 7% Available safety data sheet, transport classification, country-of-origin information, and application-specific statements or supporting documents requested by the buyer. Documents are current, internally consistent, and appropriate to the destination market and intended use. The supplier does not imply regulatory approval without evidence. _____
Supply continuity and lead time 5% Written quotation showing available quantity, realistic lead time, production or replenishment plan, minimum order quantity, and contingency arrangements. Commitments are specific and documented; the supplier distinguishes stock from planned production and communicates allocation or delay risks promptly. _____
Packaging, storage, and shipment 2% Packaging configuration, storage conditions, retest or expiry information where established, shipping protection, and handling instructions. Packaging is suitable for the material and route; storage and retest information is supported by stability data or a clearly stated basis. _____
Commercial terms and responsiveness 1% Written price validity, payment and delivery terms, sample availability, response times, and process for resolving quality claims. Terms are transparent and consistent across the quotation, order confirmation, and quality documents; technical questions receive clear answers. _____
Total weighted score 100% Score each dimension from 0 to 2: 0 = evidence absent or unsatisfactory; 1 = partial evidence or gaps; 2 = complete, verifiable evidence. Weighted points = dimension weight × score ÷ 2. Maximum total: 100 points.

What Should Buyers Know About Pricing and Lead Times?

Pricing for methyl D-4-hydroxyphenylglycinate depends on more than the quoted price per kilogram. Buyers should specify assay, impurity limits, packaging, order quantity, and delivery terms before comparing offers. Ask for the basis. A low quote may exclude testing, special packaging, or freight. Public reports rarely provide a dependable spot-price benchmark for this specific intermediate, so request a dated quotation and confirm its validity period. Also ask whether the price changes between sample, pilot, and commercial quantities.

Lead times depend on production scheduling, quality release, and transport—not just manufacturing days. The Institute for Supply Management’s December 2024 Manufacturing PMI reported a supplier deliveries index of 50.3; readings above 50 indicate slower deliveries. This is a broad signal, not a forecast for this chemical. UNCTAD’s Review of Maritime Transport 2024 notes that shipping carries over 80% of world trade by volume, underscoring the potential effect of route disruption. Request separate estimates for production, testing, and transit, plus the dispatch location. A buffer helps. It can still be wrong. Confirm stock status, sample availability, and documentation requirements in writing, then agree on how delays will be communicated.

How to Compare Methyl D-4-Hydroxyphenylglycinate Suppliers in 2026

When comparing methyl D-4-hydroxyphenylglycinate suppliers in 2026, look beyond a quoted price. Request a recent certificate of analysis, validated test methods, and batch-level results for identity, assay, water, and related impurities. For this chiral intermediate, ask how optical purity is measured and whether chromatograms can be reviewed. A polished certificate is useful, but it is not a substitute for traceable test records. Small detail, big difference.

Compare samples from more than one production lot, then check whether the results and packaging stay consistent. Ask for typical lead time, minimum order quantity, storage conditions, and a written process for handling out-of-specification results. UNCTAD’s Review of Maritime Transport 2024 reported maritime trade growth of 2.4% in 2023 and forecast 2.7% growth in 2024. That broad shipping data cannot rank chemical suppliers, but it supports checking realistic delivery windows and contingency stock. Request shipment histories or documented on-time performance rather than accepting a verbal promise. Also review change-control practices: a change in raw material or manufacturing site should be communicated before it affects your incoming material. One limitation remains: supplier documents may look complete while leaving methods or impurity limits unclear. Ask direct questions, record the answers, and compare evidence—not confidence.

Pharmaceutical Intermediates Market Report Insights: Methyl D-(-)-4-hydroxy-phenylglycinate

Methyl D-(-)-4-hydroxy-phenylglycinate is a specialty pharmaceutical intermediate valued for its defined molecular structure and potential use in multistep chemical synthesis. Its molecular formula is C₉H₁₁NO₃, with a molecular weight of 181.191 g/mol. The compound contains nine carbon atoms, eleven hydrogen atoms, one nitrogen atom, and three oxygen atoms. Its stereochemical designation helps distinguish it from related forms, a relevant consideration when selecting and characterizing intermediates for research and manufacturing processes.

For identification and supply-chain documentation, the compound is associated with CAS No. 37763-23-8, HS Code 2942000000, and European Community numbers 253-657-2 and 806-897-2. Additional records include DSSTox Substance ID DTXSID00958815 and Nikkaji Number J238.216D. These identifiers support consistent communication across technical specifications, procurement records, and quality documentation. In a pharmaceutical intermediates market increasingly attentive to traceability and material consistency, clearly defined identity data can help buyers assess suitability for their intended synthesis workflows. Actual selection should be guided by applicable specifications, analytical results, and process requirements.

Methyl D-(-)-4-hydroxy-phenylglycinate

FAQS

Which details should a specification sheet include?

It should state assay, identity, water content, residual solvents, and impurity limits. Check the enantiomeric-purity limit and test method, too. Small details matter.

Is a certificate marked “conforms” enough?

Not always. A recent, batch-specific certificate with actual test values is easier to assess. Request supporting raw data when available.

How can buyers assess quality across batches?

Compare certificates from several lots, not just one. Ask how deviations are investigated and whether methods are validated. One certificate cannot prove long-term consistency.

What supplier records and controls are worth requesting?

Ask about batch records, traceability, retain samples, change control, packaging, and storage conditions. Request advance notice of process changes. Details can get missed.

What should buyers compare when reviewing quotations?

Compare assay, impurity limits, packaging, order quantity, and delivery terms alongside price per kilogram. A low quote may exclude testing or freight.

How should buyers verify a quoted price?

Request a dated quotation and confirm its validity period. Ask whether pricing changes between sample, pilot, and commercial quantities. Check the basis.

What affects lead times?

Production scheduling, quality release, and transport can all affect delivery. Request separate estimates for production, testing, and transit, plus the dispatch location.

How should buyers plan for possible delays?

Confirm stock status, sample availability, and documentation requirements in writing. Agree on how delays will be communicated. A buffer helps, but it can still be wrong.

Do broad shipping indicators predict delivery for this material?

Not reliably. A supplier deliveries index above 50 can signal slower deliveries, but it is not a forecast for this chemical. Route disruptions may also matter.

Conclusion

Methyl D-(-)-4-Hydroxy-Phenylglycinate is a chiral chemical intermediate valued for its defined molecular structure and potential use in pharmaceutical and specialty-chemical manufacturing. Buyers should first confirm that the material’s intended application matches their process requirements, then review key specifications such as identity, purity, stereochemical composition, moisture, and impurity limits. Clear analytical documentation and consistent batch records help make supplier comparisons more meaningful.

When assessing suppliers in 2026, consider quality systems, technical support, communication, production capacity, packaging, and the availability of representative samples or supporting documentation. Compare quotations alongside minimum order quantities, payment terms, shipping arrangements, and realistic lead times; the lowest price alone may not represent the best overall value. A practical evaluation uses the same specification and delivery requirements for every candidate, verifies that commitments are documented, and considers how reliably each supplier can meet future demand. This structured approach can help buyers select a dependable source while managing quality, cost, and supply continuity.

Blog Tags:

Madeline
Updated:
Madeline

Madeline

Madeline is a dedicated marketing professional at Shijiazhuang Pengnuo Technology Co., Ltd., a company established in 2020 that specializes in the research, development, production, and sales of pharmaceutical intermediates and fine chemical products. With a deep understanding of the company’s......
Previous 7 N,N'-Dimethylurea Buying Tips for Global Buyers
Hit enter to search or ESC to close