Home Certificates of analysis P21-5-0318
Certificate of analysis
P-21 5 mg
Lot P21-5-0318 · certificate issued Apr 3, 2026
Bioviridian Inc. tested Touchstone lot P21-5-0318 of P-21 5 mg and reported 99.6% purity by RP-HPLC (214 nm), 5.42 mg measured content by HPLC quantitation and identity confirmed by MALDI-MS. Certificate COA3388, issued Apr 3, 2026. It is an archived record for an earlier lot or issue. Sold for laboratory research use only.
Archived
Verified · COA3388This certificate is for an earlier lot, or has been replaced by a newer certificate for this size. See the latest: lot P21-5-0318.
Purity
99.6%
RP-HPLC (214 nm)
Measured content
5.42 mg
Stated strength 5 mg
Identity
Conforms
MALDI-MS
All results
| Test | Result | Method |
|---|---|---|
| Purity | 99.6% | RP-HPLC (214 nm) |
| Measured content | 5.42 mg | HPLC quantitation |
| Identity | Conforms | MALDI-MS |
| Endotoxin | ≤ 0.05 EU/mL | — |
| Heavy metals | Not listed on this certificate | — |
| Sterility | Sterility result not listed on this certificate | — |
Values as printed on the laboratory’s certificate. Where a certificate does not list a result, this page says so and fills nothing in.
Certificate & verification details
Verification number
COA3388Checked Sep 24, 2026: this number opens this certificate on the testing laboratory’s own site.
- Testing laboratory
- Bioviridian Inc. · signed by Shane Straight, M.S.
- Laboratory site
- bioviridians.com
- Touchstone lot
- P21-5-0318
- Laboratory’s lot, as on the certificate
- P21-5-0318
- Certificate number
- COA3388
- Sample received
- Mar 26, 2026
- Certificate issued
- Apr 3, 2026
- Sample as named on the certificate
- P-21 5mg
- Sample type
- White lyophilized powder
The laboratory tested a sample of this lot. The certificate is not reproduced on this site; the links go to the laboratory’s original files, unaltered.
Issue history
- Current issue · Apr 3, 2026 · served by bioviridians.com1c275109…7ba6a1PDF
The fingerprint (SHA-256) identifies the exact file we read on Sep 24, 2026. If the laboratory changes the file, the fingerprint changes and the next check flags it.
Other certificates for P-21
For laboratory research use only. Not a drug, not a supplement, not for human or veterinary use.