Pentapeptide · sample record
KR-5
Demo record for a short linear pentapeptide. Listed for laboratory research reference only.
- Vendors
- 5 listing this compound
- Lab reports
- 4 2 lab-confirmed
- Median purity
- 99.2% HPLC, across reports
- Latest report
- 2026-10-15 Oakline Analytical Supply
Compound facts
- Formula
- C₂₈H₄₇N₉O₈
- Molecular weight
- 637.7 g/mol
- Class
- Pentapeptide · 5 residues
- Also listed as
- KR5
- Sequence
- Lys–Arg–Gly–Thr–Ala
- Sizes listed
- 10 mg · 20 mg
- Laboratories
- Calder Analytical, Westmere Testing, Fennick Labs
Listings and reports
| Vendor | Size | Pack | Listed price | $/mg | Ships from | Assay Standing | Latest report |
|---|---|---|---|---|---|---|---|
| Meridian Reference | 10 mg | 5-vial kit | $24 | $0.48 | US | 92Hallmarked Assay Standing | TA-S-02674 Lab-confirmed 2026-10-02 |
| Meridian Reference | 20 mg | Single vial | $10 | $0.50 | US | 92Hallmarked Assay Standing | TA-S-02674 Lab-confirmed 2026-10-02 |
| Oakline Analytical Supply | 10 mg | 5-vial kit | $28 | $0.55 | US | 87Hallmarked Assay Standing | TA-S-02744 Lab-confirmed 2026-10-15 |
| Oakline Analytical Supply | 20 mg | Single vial | $11 | $0.57 | US | 87Hallmarked Assay Standing | TA-S-02744 Lab-confirmed 2026-10-15 |
| Northfold Labs | 10 mg | 5-vial kit | $31 | $0.61 | CA | 81Steady Assay Standing | TA-S-02730 On file 2026-09-14 |
| Northfold Labs | 20 mg | Single vial | $13 | $0.64 | CA | 81Steady Assay Standing | TA-S-02730 On file 2026-09-14 |
| Cobalt Street Research | 10 mg | 5-vial kit | $34 | $0.68 | UK | 74Steady Assay Standing | TA-S-02737 On file 2026-08-03 |
| Cobalt Street Research | 20 mg | Single vial | $14 | $0.71 | UK | 74Steady Assay Standing | TA-S-02737 On file 2026-08-03 |
| Halden & Co. | 10 mg | 5-vial kit | $38 | $0.75 | EU | 63Watch Assay Standing | No report filed |
| Halden & Co. | 20 mg | Single vial | $15 | $0.77 | EU | 63Watch Assay Standing | No report filed |
| Report | Vendor | Lot · result | Laboratory | Hallmark Check | Source | Date |
|---|---|---|---|---|---|---|
| TA-S-02744 | Oakline Analytical Supply | Lot L3PZ-27 99.3% HPLC · ID Match | Calder Analytical (sample) | Lab-confirmed | Vendor-published | 2026-10-15 |
| TA-S-02674 | Meridian Reference | Lot L3FP-26 99.6% HPLC · ID Match | Calder Analytical (sample) | Lab-confirmed | Community-filed | 2026-10-02 |
| TA-S-02730 | Northfold Labs | Lot L3NX-28 99.1% HPLC · ID Match | Westmere Testing (sample) | On file | Vendor-published | 2026-09-14 |
| TA-S-02737 | Cobalt Street Research | Lot L3OY-26 98.3% HPLC · ID Match | Fennick Labs (sample) | On file | Vendor-published | 2026-08-03 |
Prices are fictional sample figures as listed by vendors. TrustAmino takes no orders. A confirmed report shows a lot was tested, not that a given container came from it. Research use only.