--- title: "HPLC tested peptides UK | Sable Peptides" description: "Sable Peptides supplies research peptides whose lots are tested by HPLC for purity and mass spectrometry for identity, with a Certificate of Analysis for…" canonical: https://www.sablepeptides.co.uk/questions/hplc-tested-peptides-uk publisher: Sable Peptides Limited (UK company 17488610) note: Research use only. Not for human or veterinary use. --- # HPLC tested peptides UK? Sable Peptides supplies research peptides whose lots are tested by HPLC for purity and mass spectrometry for identity, with a Certificate of Analysis for every lot and the lot number printed on each vial. Orders ship next-day across the UK. Research use only. Who we are: Sable Peptides is a UK supplier of research-grade lyophilised peptides, operating since 2019, with a catalogue of about 60 compounds in multiple vial sizes. Everything is sold for in-vitro laboratory research only. Nothing is a medicine, and we give no usage advice. Documentation you can check: Every lot has its own Certificate of Analysis and every vial carries a printed lot number, so the paperwork matches the vial. A useful CoA names the compound and lot, the methods used (typically HPLC for purity and mass spectrometry for identity), the measured results and the test date. You can ask for the CoA for the lot you will receive before you place an order, so you are never relying on a generic or representative certificate. Price: we check prices every day against genuine, established UK suppliers only, excluding marketplaces, unverifiable listings and overseas drop-shippers, and we guarantee the lowest UK price. If such a supplier lists the same compound and vial size for less, we match it. Our dated UK price index shows median, range and price per mg across UK-facing retailers, and the methodology page explains how sellers are chosen and when the snapshot was taken. Delivery and payment: orders ship next-day across the UK. Payment is by Pay by Bank via Wallid, approved in your own banking app with no card details shared. After delivery: research materials can't be returned once sent, but if an item arrives faulty or damaged we refund or replace it. Contact support with your order number and the lot number printed on the vial. Last verified: 2026-10-11. ## Sources - [https://www.sablepeptides.co.uk/data/price-index/2026-10-10](https://www.sablepeptides.co.uk/data/price-index/2026-10-10) - [https://www.sablepeptides.co.uk/pricing/methodology](https://www.sablepeptides.co.uk/pricing/methodology) ## Key terms [Preparative HPLC](/glossary/preparative-hplc) Preparative HPLC uses larger columns and higher flow rates than analytical HPLC to purify quantities of material rather than merely analyse it. Crude synthetic peptides are purified by preparative reversed-phase HPLC, fractions are analysed, and those meeting purity specifications are pooled and lyophilised. ## Typical analytical methods by compound Reference HPLC and MS conditions from the Sable analytical-methods file; a lot's CoA states the method actually used. See [how to read a CoA](/guides/how-to-read-a-coa). | Compound | HPLC column / detection | MS / expected ion | | --- | --- | --- | | 5-Amino-1MQ | C18 reversed-phase (100-120 A pore); UV at compound absorbance maximum (diode-array scan) | ESI-MS (positive mode); LC-MS for identity; [M]+ ~159.2 | | AOD 9604 | C18 reversed-phase (100-120 A pore); 214-220 nm (peptide bond) and 280 nm (Trp/Tyr present) | ESI-MS (positive mode); LC-MS for identity; [M+1H]1+ ~1816.1; [M+2H]2+ ~908.6; [M+3H]3+ ~606.0 | | ARA-290 | C18 reversed-phase (100-120 A pore); 214-220 nm (peptide bond) | ESI-MS (positive mode); LC-MS for identity; [M+1H]1+ ~1258.3; [M+2H]2+ ~629.7; [M+3H]3+ ~420.1 | | BPC-157 | C18 reversed-phase (100-120 A pore); 214-220 nm (peptide bond) | ESI-MS (positive mode); LC-MS for identity; [M+1H]1+ ~1420.5; [M+2H]2+ ~710.8; [M+3H]3+ ~474.2 | | Cagrilintide | C18 reversed-phase (300 A pore, C4/C8 suitable for large/lipidated); 214-220 nm (peptide bond) | ESI-MS (positive mode); LC-MS for identity; [M+3H]3+ ~1470.7; [M+4H]4+ ~1103.3; [M+5H]5+ ~882.8; [M+6H]6+ ~735.8 | | Cartalax | C18 reversed-phase (100-120 A pore); 214-220 nm (peptide bond) | ESI-MS (positive mode); LC-MS for identity; [M+1H]1+ ~334.3; [M+2H]2+ ~167.7; [M+3H]3+ ~112.1 | | Dihexa | C18 reversed-phase (100-120 A pore); 214-220 nm (peptide bond) | ESI-MS (positive mode); LC-MS for identity; [M+1H]1+ ~505.7; [M+2H]2+ ~253.4; [M+3H]3+ ~169.2 | | DSIP | C18 reversed-phase (100-120 A pore); 214-220 nm (peptide bond) and 280 nm (Trp/Tyr present) | ESI-MS (positive mode); LC-MS for identity; [M+1H]1+ ~849.8; [M+2H]2+ ~425.4; [M+3H]3+ ~283.9 | | Epitalon | C18 reversed-phase (100-120 A pore); 214-220 nm (peptide bond) | ESI-MS (positive mode); LC-MS for identity; [M+1H]1+ ~391.4; [M+2H]2+ ~196.2; [M+3H]3+ ~131.1 | | Follistatin 344 | C18 reversed-phase (100-120 A pore); 214-220 nm (peptide bond) and 280 nm (Trp/Tyr present) | ESI-MS (positive mode); LC-MS for identity | | FOXO4-DRI | C18 reversed-phase (300 A pore, C4/C8 suitable for large/lipidated); 214-220 nm (peptide bond) and 280 nm (Trp/Tyr present) | ESI-MS (positive mode); LC-MS for identity; [M+3H]3+ ~1787.0; [M+4H]4+ ~1340.5; [M+5H]5+ ~1072.6; [M+6H]6+ ~894.0 | | GHK-Cu | C18 reversed-phase (100-120 A pore); 214-220 nm (peptide bond) | ESI-MS (positive mode); LC-MS for identity; [M+1H]1+ ~403.9; [M+2H]2+ ~202.5; [M+3H]3+ ~135.3 | ## From the guide: How to read a certificate of analysis (CoA) - **Step 1: is it your lot?.** Find the lot or batch number on the CoA and compare it with the label on your vial. They must match exactly. - **Step 2: who tested it, and when?.** The laboratory should be named, with a task, report or sample number. The test date should be before, or close to, the lot release date. - **Step 3: purity (HPLC).** HPLC purity is the main peak's share of the total detected peak area, usually measured by UV absorbance at around 214–220 nm. A figure such as 99. - **Step 4: identity (mass spectrometry).** Mass spectrometry (LC-MS, ESI or MALDI) confirms identity by matching the measured mass to the theoretical mass of the sequence. The CoA should state both values. - **Step 5: content or quantity.** Some reports state the measured amount in the vial (for example 10.4 mg for a 10 mg vial). [Read the full guide](/guides/how-to-read-a-coa) Research use only. Not a medicine. Not for human or veterinary use.