CQ HERB Psoralen

Psoralen is a naturally occurring furanocoumarin associated with several botanical sources, including Psoralea corylifolia. For laboratories, ingredient developers, and specialty raw material buyers, sourcing high-purity Psoralen requires more than checking a purity percentage on a product page. Chemical identity, analytical methods, batch documentation, safe handling, and supplier communication all deserve careful review. This guide explains how to evaluate Psoralen 98%, interpret its chemical specifications, review HPLC and Certificate of Analysis (COA) information, and prepare a more effective bulk sourcing inquiry.   Quick Answer: How Do You Choose a Psoralen 98% Supplier? When sourcing Psoralen 98%, start by confirming the required chemical identity, CAS number, purity specification, and intended use. Then review the supplier's analytical method, batch-specific COA, available safety documentation, packaging, storage recommendations, and commercial terms. A supplier's stated purity is only one part of the evaluation. Buyers should understand how the assay was measured, whether the results relate to the actual batch, and whether additional quality or safety requirements apply to their project. Before placing a bulk order, confirm the minimum order quantity, sample availability, lead time, destination requirements, and the documents that can actually be supplied. Key Takeaways Confirm chemical identity: Match the product name, CAS number, molecular formula, and specification to your project requirements. Understand the purity claim: Confirm the acceptance limit, assay method, and reporting basis behind the stated 98% grade. Review batch documentation: Check that the COA identifies the material and includes relevant test methods, specifications, and results. Evaluate safety requirements: Psoralen is a photoreactive compound; review the current SDS and applicable handling precautions before use. Compare suppliers consistently: Evaluate technical suitability, documentation, price, packaging, lead time, and communication together. Plan for bulk purchasing: Define quantity, destination, required documents, and acceptance criteria before requesting a formal quotation. 1. What Is Psoralen? Psoralen is a naturally occurring furanocoumarin, a class of compounds characterized by a fused furan and coumarin structure. It has been identified in certain plants, including Psoralea corylifolia, also known as Cullen corylifolium in some botanical classifications. Psoralen is of interest in natural product chemistry, analytical research, and studies of photochemical behavior. Its chemical properties and interaction with ultraviolet radiation also make appropriate safety assessment important when handling the compound. Psoralen should not be confused with Isopsoralen, also known as Angelicin. Although these compounds belong to the broader furanocoumarin family and may be associated with related botanical sources, they are chemically distinct substances. Buyers should verify the exact compound required rather than relying on botanical association or a similar product name. Basic Chemical Information Property Information Product name Psoralen CAS number commonly listed 66-97-7 Molecular formula C₁₁H₆O₃ Molecular weight Approximately 186.16 g/mol Chemical class Furanocoumarin Botanical association Psoralea corylifolia and other reported plant sources Commercial grade discussed 98% Analytical verification Confirm the method and current product specification with the supplier Chemical identity information should be checked against a recognized chemical database and the supplier's current product documentation before ordering. 2. What Does Psoralen 98% Mean? Psoralen 98% generally refers to a commercial grade with a stated assay or purity target of 98%. However, a percentage should not be interpreted without understanding the specification and analytical method behind it. Before comparing supplier quotations, clarify the following: Does 98% represent the minimum acceptance limit or a representative assay result? Is the result reported on an as-is basis or a dry basis? Which analytical technique and calculation procedure are used? Is the result associated with the actual batch being offered? Are other quality attributes assessed separately? Does the specification match the intended research or ingredient-development application? Purity and overall quality are related but different concepts. An assay result alone does not establish the complete impurity profile, residual-solvent status, contaminant levels, stability, or suitability for a particular finished formulation. Psoralen 98% Versus Psoralea corylifolia Extract Comparison point Psoralen 98% Psoralea corylifolia extract Material type High-purity individual compound Botanical extract containing multiple constituents Composition Primarily Psoralen according to the stated specification Varies with source material and extraction process Main quality focus Identity, assay, and relevant impurity controls Botanical identity, extract specifications, and marker content Documentation priorities COA, analytical method, and batch traceability Botanical source, extraction details, standardization, and batch results Purchasing considerations Required grade, analytical evidence, and quantity Extract ratio or standardization target, application, and source details These products are not interchangeable. Select the material that matches the actual project specification, and do not assume that an extract standardized to a botanical marker is equivalent to an isolated compound. 3. How to Verify Psoralen Identity and CAS Information Identity verification is an essential step in the procurement of high-purity compounds. A mismatch between the requested compound and the material supplied can cause problems in analytical work, internal quality review, and formulation development. Before ordering, confirm that the following details are consistent across the quotation, product specification, COA, product label, and supporting analytical records: Product name and relevant synonyms. CAS number required by the project. Molecular formula and molecular weight, where applicable. Purity grade and assay acceptance criteria. Batch or lot number. Analytical method and reporting basis. Document revision and relevant dates. Psoralen Versus Isopsoralen Psoralen and Isopsoralen (Angelicin) are distinct compounds. Similar botanical associations do not make them interchangeable, and the CAS number should be used as one element of identity verification. When purchasing either material, ask the supplier to confirm the exact compound name and match it to the specification and batch documentation. If your internal chemical database identifies a discrepancy, resolve it before ordering. 4. How to Evaluate HPLC Results for Psoralen HPLC is commonly used for the assay and chromatographic evaluation of many high-purity botanical compounds. However, the statement “HPLC tested” does not by itself establish that two products have equivalent analytical quality. What Should Buyers Check? 1. Analytical method Ask which method was used to determine the stated assay and whether it is appropriate for the intended measurement. 2. Method conditions Where relevant and available, review the sample preparation, chromatographic conditions, detector, calculation procedure, and reporting basis. 3. Chromatographic evidence If a chromatogram is provided, check whether it identifies the relevant peak and contains enough information for the intended technical review. A chromatogram is supporting evidence, not proof of every quality attribute. 4. Batch traceability Confirm that the result belongs to the quoted or supplied batch. A generic product specification and a batch-specific COA serve different purposes. 5. Additional quality requirements Depending on the project, further tests may be needed to evaluate related compounds, residual solvents, contaminants, or other acceptance criteria. Requirements should be agreed with the supplier before purchase. Why Method Consistency Matters Results from different analytical methods may not be directly comparable. Differences in sample preparation, detection, calculation, or reporting basis can affect how an assay result should be interpreted. For supplier qualification, compare like with like: use a defined specification, understand the method behind the reported percentage, and arrange independent testing when the project's risk or quality requirements justify it.   5. What Should a Psoralen COA Include? A Certificate of Analysis records test results for an identified batch against defined specifications. Its value depends on whether the document is traceable, relevant, and sufficiently detailed for the buyer's quality review. COA item What buyers should check Product name Does it match the ordered compound? Batch or lot number Can the tested material be traced to the supplied batch? Test items Are the required quality attributes included? Specification or limit Is the acceptance criterion clearly stated? Test method Is the method identified where needed? Result Is the result clear and interpretable? Test or issue date Is the document appropriate for the batch under review? Release information Is the document appropriately authorized by the supplier? The exact content depends on the material specification and supplier's quality system. A COA should be reviewed together with other documents where required. COA, TDS, and SDS: Understanding the Difference COA (Certificate of Analysis): Records analytical results for an identified batch. TDS or product specification: Describes product characteristics, technical information, and applicable acceptance criteria. SDS (Safety Data Sheet): Provides safety, handling, storage, exposure-control, and emergency-response information. These documents serve different purposes. Buyers should request the documentation relevant to their intended use and confirm availability before placing an order. 6. Safety, Handling, and Storage Considerations Psoralen is a photoreactive furanocoumarin. Its interaction with ultraviolet radiation is an important consideration in laboratory safety and handling. Buyers should not assume that a natural origin makes the compound inherently safe. Before handling the material: Review the current SDS and the supplier's handling instructions. Use the personal protective equipment and engineering controls specified by the relevant safety assessment. Avoid unintended exposure and follow applicable precautions regarding ultraviolet light. Keep the material in its specified container and follow the supplier's storage recommendations. Confirm any special packaging, transport, or disposal requirements with the appropriate safety personnel. Storage conditions should be based on the current product specification and supporting stability information. Do not assume a universal temperature, shelf life, or storage protocol without product-specific evidence. For cosmetic, pharmaceutical, food, or other regulated applications, buyers must independently confirm applicable regulatory status and suitability. Supplying a high-purity raw material does not automatically establish authorization for a particular use. 7. How to Choose a Reliable Psoralen Supplier A competitive price is useful, but supplier qualification should consider technical suitability, document quality, safety communication, and commercial reliability together. Supplier Evaluation Checklist Product and technical fit Can the supplier confirm the exact compound and CAS number? Is the requested purity grade clearly specified? Is the analytical method identified? Are the available results and documents suitable for your evaluation? Quality and documentation Does the COA identify the relevant batch? Are the test items and acceptance criteria clear? Can the supplier provide an SDS and relevant technical documentation? Are product claims supported by current records? Commercial capability What sample sizes and bulk quantities are available? What are the minimum order quantity and packaging options? What is the expected lead time? Are shipping terms and destination requirements clear? Can repeat orders be reviewed against an agreed specification? Communication Does the supplier answer technical questions clearly? Can discrepancies in documentation be resolved before purchase? Are quotations and product descriptions consistent with the available evidence? Questions to Ask Before Ordering What Psoralen grade and assay specification are available? Can you confirm CAS 66-97-7 in the current product documentation? Which analytical method is used for the purity assay? Can you provide the current specification and an appropriate COA? Is an HPLC chromatogram available for the offered batch? What sample quantities, MOQ, and bulk packaging options are available? Which SDS and additional technical documents can be supplied? What are the estimated lead time and shipping options for my destination? A structured inquiry helps buyers compare suppliers on a consistent basis and reduces misunderstandings before an order is placed. 8. Bulk Purchasing: What to Confirm Before Ordering Psoralen 98% Bulk sourcing requires agreement on the product specification, quantity, batch documentation, packaging, delivery arrangements, and acceptance criteria. Sample Evaluation For an initial evaluation, confirm sample size, sample cost, shipping cost, dispatch time, and available documentation. If independent testing is planned, agree on the analytical method and acceptance criteria in advance. This approach makes the results easier to interpret and provides a clearer basis for deciding whether to proceed with a larger order. Bulk and Repeat Orders Before confirming a bulk purchase, clarify: Required quantity and packaging format. Whether the quoted material is in stock or requires production. Batch availability and estimated lead time. Applicable specification and required documentation. Shipping terms, destination, and freight arrangements. Requirements for reviewing future batches. For repeat procurement, use a written specification and a consistent batch-review process rather than relying solely on an earlier quotation or product description. Information to Include in a Bulk Inquiry To receive a more relevant quotation, provide: Product: Psoralen Required grade: for example, 98%, subject to the agreed specification CAS number: 66-97-7, subject to project verification Quantity: sample, grams, kilograms, or planned annual demand Intended research or ingredient-development application Destination country Required analytical method or documentation Target delivery date, if applicable Clear requirements help the supplier assess whether the offered material matches the project's technical and commercial needs. 9. Psoralen 98% from CQHERB CQHERB supplies botanical raw materials and high-purity compounds for business customers involved in research, analytical work, and ingredient development. For buyers evaluating Psoralen 98%, CQHERB can discuss the requested specification, quantity, available product information, and applicable purchasing arrangements. Before confirming an order, buyers should communicate their required compound identity, assay specification, intended application, destination, and documentation needs. The proposed material and available batch records should then be reviewed against those requirements. For Psoralen sourcing inquiries, contact CQHERB: Company: Nanjing Spring & Autumn Biological Engineering Co., Ltd. Email: sale05@cqherb.com Website: https://www.cqherb.com/ Product information: https://www.cqherb.com/products Please include your required grade, quantity, destination country, and analytical or documentation requirements in your inquiry. 10. Frequently Asked Questions About Psoralen 98% What is the CAS number of Psoralen? CAS 66-97-7 is commonly listed for Psoralen. Confirm the identity against a recognized chemical database and the supplier's current product documentation before ordering. What does Psoralen 98% mean? It generally describes a commercial grade with a stated assay or purity target of 98%. Buyers should verify the acceptance limit, method, reporting basis, and batch result. Is Psoralen the same as Isopsoralen? No. Psoralen and Isopsoralen (Angelicin) are distinct chemical compounds. Buyers should confirm the exact identity and CAS number required for their project. Should I request HPLC data before purchasing? If analytical verification is important to your project, ask which method is used and what supporting data are available. Review the results against your own specification rather than relying on a generic “HPLC tested” statement. What documents should I request from a Psoralen supplier? Commonly requested documents include a product specification or TDS, a batch-specific COA when available, and an SDS. Additional analytical or quality documents may be necessary depending on the project. Can I buy Psoralen in bulk? Bulk availability, minimum order quantity, packaging, lead time, and pricing depend on the supplier's current offering and the required specification. Provide the quantity and destination to request a relevant quotation. What safety precautions are important for Psoralen? Psoralen is photoreactive, so buyers should review the current SDS and follow the applicable handling and exposure precautions. The exact controls should be determined by the material documentation and the user's safety assessment. How can I request a Psoralen quotation from CQHERB? Email sale05@cqherb.com with the required grade, quantity, destination country, and technical documentation needs. CQHERB can review the inquiry and confirm the relevant product and commercial details. Conclusion Sourcing Psoralen 98% requires a structured evaluation of chemical identity, purity specifications, analytical evidence, safety documentation, and commercial supply arrangements. For buyers comparing suppliers, the best starting point is a clearly defined specification supported by relevant batch information. Confirm the technical requirements before ordering samples or bulk material, and ensure that the offered compound matches the intended project. For Psoralen sourcing inquiries, contact CQHERB at sale05@cqherb.com. References CQHERB product catalog: https://www.cqherb.com/products PubChem chemical database: https://pubchem.ncbi.nlm.nih.gov/ Supplier product specification and SDS for the specific Psoralen grade offered. Note: Public chemical references provide background information. Product-specific assay results, storage conditions, shelf life, safety instructions, and document availability should be confirmed against current supplier documentation before purchase.