SPECIMEN — ILLUSTRATIVE FORMAT. This certificate shows the COA layout for this compound. Lot number, dates, and measured results (shown as “____”) are completed on the certificate issued with each shipped lot.
Product Identification
| Product | TB-500 (HXR-TB-500) |
|---|
| Full name | TB-500 (synthetic thymosin beta-4 fragment 17-23, acetylated) |
|---|
| CAS No. | 885340-08-9 |
|---|
| Molecular formula | C₃₈H₆₈N₁₀O₁₄ |
|---|
| Molecular weight | 889.0 g/mol |
|---|
| Appearance | White lyophilized powder |
|---|
| Lot No. | ____ |
|---|
| Manufacture date | ____ |
|---|
| Re-test date | ____ |
|---|
| Quantity | 5 mg |
|---|
Analytical Results
| Test | Method | Specification | Result |
|---|
| Purity | RP-HPLC | ≥98% (HPLC) | ____ |
| Identity | ESI-MS | Consistent with MW | ____ |
| Appearance | Visual | White powder | ____ |
| Solubility | Visual | Soluble in water / AcOH | ____ |
| Water content | Karl Fischer | ≤ spec | ____ |
| Counterion (acetate / TFA) | HPLC | Report | ____ |
SequenceAc-Leu-Lys-Lys-Thr-Glu-Thr-Gln (Ac-LKKTETQ; acetylated 7-residue fragment corresponding to residues 17-23 of thymosin beta-4 — distinct from full-length thymosin beta-4, CAS 77591-33-4)
Storage & Handling
Store at −20°C, desiccated, protect from light. Minimize freeze–thaw cycles. Reconstitute under aseptic laboratory conditions.
Reviewed / Approved by ____________________ (QC)
Date ____________________
RESEARCH USE ONLY
Not for human or veterinary use, food, drug, or therapeutic application.
Helix Reagents LLC · helixbiosci.com ·
HXR-TB-500
This certificate is valid only for the lot identified above.