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Research peptide · 5 mg / vial
4.9· 9 reviewsLyophilized Thymosin Alpha-1, ≥99% HPLC purity, supplied with a batch-specific Certificate of Analysis (HPLC + mass spec) · C129H215N33O55 · MW 3108.3 g/mol · CAS 62304-98-7. Reference material for laboratory research use only — not for human or veterinary use.
Total for 3 items
$148.97
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No slogans, no “trust us.” Here is the exact path every PepBiotics vial takes before its lot number ever reaches your label.
Solid-phase synthesis, then lyophilized to a stable powder. Each production run becomes a single traceable lot.
Reverse-phase HPLC quantifies purity and resolves impurities — the headline percentage on every certificate.
ESI mass spectrometry confirms the molecular weight matches the target sequence. No guessing what's in the vial.
Data sheet
Lab results
Every lot links to its full Certificate of Analysis from Aegis Bioanalytical Laboratories, an independent ISO/IEC 17025-accredited lab — each with a Report ID you can verify.
Lot PBL-24158
Mfg Jul 26, 2026 · Exp Jul 25, 2028 · Aegis Bioanalytical Laboratories
Lot PBL-24157
Mfg Apr 17, 2026 · Exp Apr 16, 2028 · Aegis Bioanalytical Laboratories
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30-Day Reship Guarantee. If a vial arrives damaged or a lot doesn’t match its COA, we reship or refund — no questions asked.
Thymosin Alpha-1 · 5 mg
$80.99

Don’t forget
Bac.water — $18.99
A standard laboratory diluent for lyophilized research materials. Most orders add one.
Every result is signed by Aegis Bioanalytical Laboratories and published to the vault — searchable by the lot number on your label.
CAS number, sequence, molecular weight, HPLC purity, storage and reconstitution — every value on this page, in one branded PDF for your lab records.
Download spec sheet (PDF)4.9
Based on 9 reviews
Ran our own analytical HPLC on the lot and it agreed with the published COA within tolerance. Identity confirmed by MS. This is what a research supplier should be.
Dispatched same day, arrived sealed with legible lot numbers. The batch report was already in the vault before the package landed.
Ran our own analytical HPLC on the lot and it agreed with the published COA within tolerance. Identity confirmed by MS. This is what a research supplier should be.
Ran our own analytical HPLC on the lot and it agreed with the published COA within tolerance. Identity confirmed by MS. This is what a research supplier should be.
Packaging was discreet and protective, labels crisp, and the lot resolved to a real report in the COA vault. Zero complaints.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
Dispatched same day, arrived sealed with legible lot numbers. The batch report was already in the vault before the package landed.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
Packaging was discreet and protective, labels crisp, and the lot resolved to a real report in the COA vault. Zero complaints.