Review the Material Specifications
A listing identifies the supplied material, amount and physical form. Use those details alongside the label and available analytical documentation.
Blackwell BioLabs supplies laboratory research materials with product information and batch documentation. Our COA reports include endotoxin, microbial sterility and heavy metal screening. Read the report for your product and batch to see its listed tests, results and limits.
Start with the specific material, its label and the documentation available for its batch.
The Blackwell standard
100% in-house USA manufacturing, ISO 9001-certified quality management, HPLC verification and batch-specific Certificates of Analysis (COAs).
ISO 9001 concerns quality management. CE marking is a separate conformity mark for products covered by applicable EU requirements; refer to the specific item documentation. Neither replaces a batch analytical report.
Explore batch documentation →Specs
Product Information
COA
Batch Documentation
Lab
Research Use Only
Same-Day
Dispatch Before Cutoff (HST)
30
Day Guarantee
Product facts and analytical reports help you assess the material within their stated scope.
A listing identifies the supplied material, amount and physical form. Use those details alongside the label and available analytical documentation.
Find your product and batch in the certificate library. Review its listed tests, including endotoxin, microbial sterility and heavy metal screening where reported.
Products are not intended for human or veterinary use, consumption or administration. Product documentation is not personal-use guidance.
Review current shipping options and charges before ordering. Contact us for product or order documentation questions.
If the information you need is absent or unclear, contact the team before selecting the material. Analytical results should be read within the scope of the report.
HPLC (High-Performance Liquid Chromatography) is an analytical method that separates the components of a sample by passing it through a column under high pressure, then measures detector response at each component. For peptides, HPLC quantifies purity by measuring the peak area of the target compound relative to all detected material. It is the industry standard for research-grade peptide quality verification.
Self-reported purity
Ask what method, sample and report support the stated result.
In-house testing
Still a conflict of interest. The lab is owned by the seller. Results are not independently verified.
Third-party HPLC
Check the issuer, analytical method, sample reference and reported result. Independence is one consideration when assessing a report.
A Certificate of Analysis (COA) is a document from an analytical laboratory reporting the results of testing on a specific production batch. A valid COA comes from an independent third-party lab, not the supplier, and is batch-specific rather than generic to a product line.
Identify the Issuing Laboratory
The lab name should appear at the top of the document. It must be an independent third-party analytical laboratory, not the supplier itself. If the issuer is the same company selling you the product, the document is not independent verification.
Check the HPLC Purity Percentage
Look for the purity figure from HPLC analysis, expressed as a percentage. Interpret the result using the stated analytical method and its limitations. This must be specific to this batch, not a generic product claim.
Note the Batch or Lot Number
The COA is only valid for the specific production run it was issued for. Find the batch or lot number on the document, then cross-reference it with the number printed on your product vial or packaging.
Confirm the Test Date
Review the sampling and testing dates together with the batch reference and product storage information. Ask the supplier to clarify missing dates.
Illustrative Report Layout
Certificate of Analysis
Example fields only
Compound Identity
Material identifier
Match the report to the material
HPLC Purity
See report
Method: C18 reverse-phase HPLC
Batch Number
Batch reference
Cross-reference with vial label
COA Issued
Date shown on report
Issuing lab: Illustrative Report Layout
Illustrative fields only. This is not a laboratory report or a product result. Open the certificate library for available documents.
Questions to consider when evaluating documentation from any supplier.
A number without a sample reference, analytical method or report is difficult to assess. Ask for the documentation supporting a material specification.
Identify the laboratory that issued the report and review its methods, sample reference and stated limitations. A third-party report still applies only to its tested sample and scope.
Available reports can be opened from our certificate library. Check that a document matches the material and batch you are considering. Contact us if that connection is unclear.
Before ordering. After ordering. About testing. About storage. About us. Answered directly.
Browse current materials, product specifications and available reports. Contact the team if you need help finding documentation.