Pinealon
Glu-Asp-Arg · EDR · C15H26N6O8 · monoisotopic 418.1812 Da. The index holds 3 assay reports on this compound across 2 batches from 2 suppliers.
Analytical fingerprint
Hand-authored chemistry. These properties describe the substance and do not change when a record is added.
A tripeptide with two acidic residues, essentially unretained at 4.86 min. Both principal degradation products lose 18 Da and are chromatographically close, so mass alone cannot distinguish pyroglutamate from aspartimide here; MS/MS is required and rarely supplied. The index reports "−18 Da species, unassigned" on most pinealon records, which is the honest description.
- Compound class
- Short bioregulator peptides
- Molecular formula
- C15H26N6O8
- Monoisotopic mass
- 418.1812Da
- Average mass
- 418.41Da
- Residues
- 3
- Nominal retention (RG-2, 30 min)
- 4.86min
- Retention window
- 0.20min
- Counter-ion as usually shipped
- acetate
- Typical label claims
- 10 mg · 20 mg
- Analytical difficulty (index scale)
- 0.80 — straightforward
- Purity is a defined quantity
- YES
What the index has observed
Arithmetic over the 3 records the index holds. Aggregates on this page are computed over the records the index holds, which are not a random sample of the material on the market. Lots that get tested are lots someone chose to test. Read every figure here as a description of this dataset rather than as an estimate of a population.
Fewer than twelve purity records (n=3) — a histogram of this would be a picture of the sample size rather than of the compound. The individual values are in the table below.
Characteristic impurities and degradants
The left three columns are authored chemistry — what this molecule characteristically carries and where it elutes. The right three are what the index has actually reported.
| Named species | ΔRT (min, RG-2) | Δ mass (Da) | Seen in | Median % area | Max % area |
|---|---|---|---|---|---|
| Glu-Asp dipeptide (−156 Da) | -0.30 | -156.101 | 100% | 0.03 | 0.04 |
| aspartimide (−18 Da) | +0.14 | -18.011 | 67% | 0.07, 0.04 | 0.07 |
| pyroglutamate (−18 Da) | +0.18 | -18.011 | 67% | 0.03, 0.03 | 0.03 |
| Asp-Arg dipeptide (−129 Da) | -0.34 | -129.043 | 33% | 0.14 | 0.14 |
Degradation pathways
- N-terminal pyroglutamate cyclisation
- aspartimide
Full impurity profile, with what each named species implies about the synthesis →
Quarterly coverage
Most recent records
| Report | Supplier | Lot | Lab | Quarter | Purity % | Water % | Recovery % | Provenance | Flags | Result |
|---|---|---|---|---|---|---|---|---|---|---|
| AX-2026-041537 | QSC | QSC-2602-V6998 | PeptideMeter | 2026-Q2 | 99.93 | 7.19 | 104.9 | Laboratory-retained | 1 | MARGINAL |
| AX-2026-041536 | QSC | QSC-2602-V6998 | Janoshik | 2026-Q2 | 99.74 | 8.23 | 99.2 | Buyer-sourced | 1 | FAIL |
| AX-2025-019493 | JEEP | JEEP-2507-B8206 | Nordanalyt | 2025-Q4 | 99.93 | 10.42 | 93.1 | Buyer-sourced | 0 | FAIL |