[{"data":1,"prerenderedAt":381},["ShallowReactive",2],{"article-\u002Fresearch\u002Fspotting-a-fabricated-coa":3,"article-compounds-\u002Fresearch\u002Fspotting-a-fabricated-coa":344,"article-more-\u002Fresearch\u002Fspotting-a-fabricated-coa":367},{"id":4,"title":5,"body":6,"description":314,"extension":315,"faq":316,"meta":326,"navigation":327,"path":328,"publishedAt":329,"readingMinutes":330,"relatedCompounds":331,"seo":335,"stem":336,"tags":337,"updatedAt":342,"__hash__":343},"research\u002Fresearch\u002Fspotting-a-fabricated-coa.md","How to Spot a Fabricated Certificate of Analysis",{"type":7,"value":8,"toc":301},"minimark",[9,13,16,21,29,32,57,60,66,70,73,79,85,91,97,103,109,118,122,125,132,135,147,151,157,163,169,173,176,206,210,213,216,219,223,226,236,242,248,252,258,264,270,276,282,286,289],[10,11,12],"p",{},"A Certificate of Analysis is a PDF. PDFs are easy to edit, letterheads are easy\nto copy, and the number of buyers in a position to verify one is small. The\neconomics of fabrication are favourable and the practice is correspondingly\ncommon.",[10,14,15],{},"The good news is that most fabricated certificates are not sophisticated. They\nare made by people who understand marketing rather than analytical chemistry, and\nthey share a recognisable set of errors.",[17,18,20],"h2",{"id":19},"tell-1-no-batch-number-or-a-batch-number-that-never-changes","Tell 1: no batch number, or a batch number that never changes",[10,22,23,24,28],{},"The purpose of a Certificate of Analysis is to describe ",[25,26,27],"strong",{},"one specific batch",".\nThe batch number is what connects the document to the vial.",[10,30,31],{},"Warning signs:",[33,34,35,39,42,45],"ul",{},[36,37,38],"li",{},"No batch or lot number anywhere on the document.",[36,40,41],{},"A batch number on the certificate that does not appear on the vial label.",[36,43,44],{},"The same certificate served for every order over months — meaning either every\nvial came from one enormous batch, or the document is a product brochure.",[36,46,47,48,52,53,56],{},"A batch number in an obviously decorative format: ",[49,50,51],"code",{},"BATCH-001",", ",[49,54,55],{},"LOT-2024",".",[10,58,59],{},"Real batch numbers are usually unlovely, because they encode manufacturing\ninformation rather than being chosen to look convincing.",[10,61,62,65],{},[25,63,64],{},"This is the strongest single tell",", because it defeats the document's only\npurpose. Everything downstream is moot.",[17,67,69],{"id":68},"tell-2-the-chromatogram-is-wrong-in-a-specific-way","Tell 2: the chromatogram is wrong in a specific way",[10,71,72],{},"Fabricated chromatograms are usually drawn by someone who has seen one but never\nread one.",[10,74,75,78],{},[25,76,77],{},"A perfectly flat baseline."," Real detectors produce noise. Real gradient runs\nproduce drift. A baseline that is a mathematically straight line at exactly zero\nis a drawing.",[10,80,81,84],{},[25,82,83],{},"One peak and nothing else."," Real 99% pure material still shows small impurity\npeaks. The 1% is somewhere. A trace with a single peak and an otherwise empty\nfield describes material that does not exist.",[10,86,87,90],{},[25,88,89],{},"No axis labels or units."," Real chromatography software prints retention time,\nabsorbance units and the detection wavelength automatically. Their absence\nusually means the image did not come from an instrument.",[10,92,93,96],{},[25,94,95],{},"A perfectly symmetric peak."," Some tailing is normal in peptide reversed-phase\nwork. A flawless Gaussian is a drawing tool's output.",[10,98,99,102],{},[25,100,101],{},"A retention time that doesn't fit the run."," A main peak at 2 minutes into a\n30-minute gradient, with a run that continues for 28 minutes showing nothing at\nall, is not how a method would be designed.",[10,104,105,108],{},[25,106,107],{},"The same chromatogram on different products."," Worth checking if you order more\nthan one compound — overlay the images. Identical traces for different peptides\nmeans one image is being reused.",[10,110,111,112,117],{},"See ",[113,114,116],"a",{"href":115},"\u002Fresearch\u002Finterpreting-hplc-chromatograms","reading an HPLC chromatogram"," for\nwhat a real one looks like.",[17,119,121],{"id":120},"tell-3-the-mass-spectrum-shows-a-single-clean-peak","Tell 3: the mass spectrum shows a single clean peak",[10,123,124],{},"This one is diagnostic, because it requires actual familiarity with the technique\nto get right.",[10,126,127,128,131],{},"Peptides are ionised by electrospray, which adds multiple protons. A large\npeptide is observed as a ",[25,129,130],{},"series of multiply charged ions"," at different\nmass-to-charge ratios, not as one peak at its molecular weight. A 4,963 Da\npeptide appears at m\u002Fz ≈ 1,655 (3+), ≈ 1,242 (4+), ≈ 993 (5+) and so on, and\nsoftware deconvolutes the series to a molecular mass.",[10,133,134],{},"A \"mass spectrum\" showing a single clean spike at exactly the molecular weight is\nwhat a person would draw if they thought a mass spectrometer prints the molecular\nweight. It is not what the instrument produces.",[10,136,137,138,141,142,146],{},"Related tell: ",[25,139,140],{},"only one mass figure given",". A real result states theoretical\nmass ",[143,144,145],"em",{},"and"," observed mass, because the comparison is the result. A single figure\nis a claim with the evidence removed.",[17,148,150],{"id":149},"tell-4-numbers-that-are-too-good-or-too-round","Tell 4: numbers that are too good, or too round",[10,152,153,156],{},[25,154,155],{},"Purity of exactly 99.9%, or 100%."," Purification is a process with limits, and\nintegration has uncertainty. Real certificates carry values like 98.7% or 99.24%\nbecause that is what the software calculated.",[10,158,159,162],{},[25,160,161],{},"Every batch identical."," If successive batches all report exactly 99.5%, the\nnumber is not being measured.",[10,164,165,168],{},[25,166,167],{},"Observed mass identical to theoretical mass to more decimal places than the\ninstrument can deliver."," If the certificate names a low-resolution instrument\nand then reports a match to four decimal places, the two halves of the document\ndisagree.",[17,170,172],{"id":171},"tell-5-tests-that-do-not-apply","Tell 5: tests that do not apply",[10,174,175],{},"A strong indicator of a template being filled in without understanding.",[33,177,178,188,194,200],{},[36,179,180,183,184,56],{},[25,181,182],{},"A purity percentage on bacteriostatic water."," It is a solvent. There is no\npeptide to assay and no purity figure exists. See\n",[113,185,187],{"href":186},"\u002Fcompounds\u002Fbacteriostatic-water","bacteriostatic water",[36,189,190,193],{},[25,191,192],{},"A single purity figure for a blend."," Two components produce two main peaks;\none number cannot describe both.",[36,195,196,199],{},[25,197,198],{},"\"Sterility: pass\" on a lyophilised research peptide"," that was never\nsterility tested — a test with a defined method and a defined duration that\ndoes not happen incidentally.",[36,201,202,205],{},[25,203,204],{},"Endotoxin results with no method or units."," Real endotoxin results are\nreported in EU\u002Fmg against a stated method.",[17,207,209],{"id":208},"tell-6-the-language-is-wrong","Tell 6: the language is wrong",[10,211,212],{},"Analytical reports are written in a particular register — flat, specific,\nhedged where hedging is warranted. Marketing language inside a laboratory\ndocument is out of place, and its presence usually means the document was written\nby the same person who wrote the product page.",[10,214,215],{},"Phrases that do not belong on a certificate: \"premium quality\", \"highest purity\navailable\", \"pharmaceutical grade\" (a term with no fixed meaning in this\ncontext), \"research grade guaranteed\", \"lab tested\" with no laboratory named and\nno method given.",[10,217,218],{},"Real certificates also carry mundane detail that fabrications omit because it\nseems inessential: instrument model, column dimensions and chemistry, mobile\nphase composition, gradient conditions, injection volume, analyst identity, date\nof analysis distinct from date of manufacture.",[17,220,222],{"id":221},"tell-7-the-claims-around-the-document","Tell 7: the claims around the document",[10,224,225],{},"Sometimes the certificate is fine and the claims attached to it are not.",[10,227,228,231,232,56],{},[25,229,230],{},"\"Third-party tested\" with no laboratory, method or date."," Frequently this\ndescribes in-house testing relabelled. See\n",[113,233,235],{"href":234},"\u002Fresearch\u002Fthird-party-testing-explained","what third-party testing actually means",[10,237,238,241],{},[25,239,240],{},"\"ISO 17025 certified\" with no accreditation number."," Accreditation bodies\nmaintain public registers, and the number is the whole point of holding it. The\nclaim appears constantly in this market and almost never with the number that\nwould make it checkable.",[10,243,244,247],{},[25,245,246],{},"\"Every batch independently verified\""," where the certificate on offer is\nclearly in-house work. This particular overstatement does two things at once: it\noverstates coverage, and it reassigns the vendor's own chromatography to somebody\nelse's laboratory.",[17,249,251],{"id":250},"what-you-can-actually-do","What you can actually do",[10,253,254,257],{},[25,255,256],{},"Ask which laboratory performed the analysis."," A supplier confident in their\ndocumentation will answer. Evasion is itself the answer.",[10,259,260,263],{},[25,261,262],{},"Ask for the raw data."," Instrument-generated PDFs contain metadata, method\nparameters and axis labels that a drawn image does not.",[10,265,266,269],{},[25,267,268],{},"Compare across orders."," Different batches should produce visibly different\nchromatograms. Identical traces mean one image is doing all the work.",[10,271,272,275],{},[25,273,274],{},"Ask for the accreditation number"," if accreditation is claimed, and check the\nregister.",[10,277,278,281],{},[25,279,280],{},"Commission your own analysis"," where the work justifies it. It is the only\napproach that does not depend on trusting the supplier at all, and for anything\nthat will be published it is worth the cost.",[17,283,285],{"id":284},"the-underlying-point","The underlying point",[10,287,288],{},"A certificate is a claim about material, not proof of it. Its value depends\nentirely on whether it can be traced to a real analysis of a real batch — which\nis why the batch number matters more than the purity figure, and why a supplier's\nwillingness to answer questions about their documentation is more informative\nthan the documentation itself.",[10,290,291,292,296,297,56],{},"Related: ",[113,293,295],{"href":294},"\u002Fresearch\u002Fhow-to-read-a-peptide-coa","how to read a peptide COA"," and\n",[113,298,300],{"href":299},"\u002Fresearch\u002Fchoosing-a-peptide-supplier-australia","choosing a peptide supplier in Australia",{"title":302,"searchDepth":303,"depth":303,"links":304},"",2,[305,306,307,308,309,310,311,312,313],{"id":19,"depth":303,"text":20},{"id":68,"depth":303,"text":69},{"id":120,"depth":303,"text":121},{"id":149,"depth":303,"text":150},{"id":171,"depth":303,"text":172},{"id":208,"depth":303,"text":209},{"id":221,"depth":303,"text":222},{"id":250,"depth":303,"text":251},{"id":284,"depth":303,"text":285},"Forged peptide COAs are common and most of them share the same handful of tells. What fabricated documents get wrong about chromatograms, mass spectra, batch numbers and the language of a real laboratory report.","md",[317,320,323],{"question":318,"answer":319},"Are fake peptide certificates of analysis common?","Common enough that a certificate should be treated as a claim rather than as evidence until something about it can be checked. A PDF is trivial to edit, laboratory letterheads are trivial to copy, and for most buyers there is no verification path — which makes fabrication low-effort and low-risk.",{"question":321,"answer":322},"Can I verify a COA with the laboratory that issued it?","Sometimes. Some analytical laboratories will confirm whether they issued a report with a given reference number, and a supplier confident in their documentation should have no objection to you asking. A supplier who becomes evasive when asked which laboratory performed the analysis has answered a different and more useful question.",{"question":324,"answer":325},"What is the single strongest indicator of a fabricated certificate?","A document that cannot be tied to your specific vial. If the certificate carries no batch number, or a batch number that does not appear on the vial, then whatever else it contains is not evidence about your material — and a supplier producing a document that cannot serve its only purpose has told you what it is for.",{},true,"\u002Fresearch\u002Fspotting-a-fabricated-coa","2026-08-20",9,[332,333,334],"tb-500","semaglutide","bpc-tb-500",{"title":5,"description":314},"research\u002Fspotting-a-fabricated-coa",[338,339,340,341],"COA","fraud","quality control","sourcing",null,"ZulAYocdje_9I-JBXBf7YTcmbb2NNRaKmh08I8jLIUg",[345,352,360],{"path":346,"name":347,"alsoKnownAs":348,"summary":349,"category":350,"molecularWeight":342,"purity":351},"\u002Fcompounds\u002Fbpc-tb-500","BPC-157 + TB-500","Repair blend","A combined preparation of BPC-157 and thymosin β4, used where both compounds are required in a single reconstitution.","Blends","≥99% per component",{"path":353,"name":354,"alsoKnownAs":355,"summary":356,"category":357,"molecularWeight":358,"purity":359},"\u002Fcompounds\u002Fsemaglutide","Semaglutide","GLP-1 receptor agonist","A long-acting GLP-1 receptor agonist and the reference single-agonist compound in incretin research.","Metabolic","~4,114 Da","≥99%",{"path":361,"name":362,"alsoKnownAs":363,"summary":364,"category":365,"molecularWeight":366,"purity":359},"\u002Fcompounds\u002Ftb-500","TB-500","Thymosin β4 · Tβ4","A synthetic form of thymosin beta-4, the principal actin-sequestering peptide in mammalian cells, studied in cell migration and tissue repair models.","Repair & Recovery","~4,963 Da",[368,372,377],{"path":299,"title":369,"description":370,"publishedAt":371},"Choosing a Research Peptide Supplier in Australia: A Checklist","Fourteen questions that separate suppliers with a real quality process from suppliers with a good website — covering documentation, testing claims, provenance, handling and the language they use.","2026-08-24",{"path":373,"title":374,"description":375,"publishedAt":376},"\u002Fresearch\u002Fcounterfeit-peptides-australia","Counterfeit and Substituted Research Peptides: What Actually Gets Faked","Substitution, dilution, wrong-form supply and underfilled vials — the four ways research peptides are misrepresented, why each is hard to detect, and which analytical test catches which.","2026-08-23",{"path":378,"title":379,"description":380,"publishedAt":376},"\u002Fresearch\u002Fresearch-peptides-australia-legal-status","Research Peptides in Australia: The Regulatory Position","How the TGA, the Poisons Standard and import rules apply to peptides supplied for laboratory research in Australia — what research-use-only means legally, and where the line sits.",1787473952615]