P21 (P021)

Name: P21 (P021)
Brand: LyoPep

CNTF-region-derived DGGL peptidomimetic with an adamantane-containing terminus

Lot-specific · Batch COACAS 1246751-68-7RUO

Batch COA

MOQ1 kit (10 vials) per SKU

Supplied formN-acetylated DGGL-derived peptidomimetic with a non-standard adamantane carboxamide terminus

Lead time14–21 days

P21 (P021) — Lot-specific lyophilized research material; confirm colour and physical form on the released-lot COA

P21 (P021) — Lot-specific lyophilized research material; confirm colour and physical form on the released-lot COA · Representative packaging image · verify the ordered lot

Representative packaging image · verify the ordered lot

Decision summary

Key benefits

Defensible research value includes CNTF-region-mimetic hypotheses, neurogenesis and synaptic-marker models, ageing and neurodevelopmental rodent models, stability/permeability method development and orthogonal structural qualification
Animal changes in cognition, tau, amyloid, survival or behaviour do not establish human efficacy or safety.

Published research context is presented for literature orientation only. It is not a dosing, treatment or human-use instruction.

Qualification data

Specifications to confirm against the released lot

CAS: 1246751-68-7
Formula: C₂₇H₄₂N₆O₈
Molecular weight: 578.7 g/mol
Appearance: Lot-specific lyophilized research material; confirm colour and physical form on the released-lot COA
Purity: Lot-specific chromatographic purity plus quantitative content; confirm the complete adamantane-containing structure, water, counterions and related substances separately · target, verify batch COA
Storage: Follow the released-lot label, COA and stability data. Do not infer 2–8°C or −20°C storage, solution hold time or light sensitivity without data for the supplied form, container and matrix.
MOQ: 1 kit (10 vials) per SKU
Lead time: 14–21 days

PubChem CID 56599151

Qualification matrix

Identity, purity and content are separate release questions.

Identity

Confirm the stated molecule and supplied form. Start with the matching batch COA; request sequence-level evidence only when the buyer's written procedure requires it and availability or a separate scope has been agreed.

Purity

Review RP-HPLC method conditions, wavelength, integration and related-peak handling. A percentage without the method is not enough.

Content

Net peptide content is not the same as gross lyophilized powder weight. Ask which assay supports the stated amount and whether water/counter-ion is addressed.

Stability

Follow the storage condition stated on the batch COA or label from receipt onward.

Research context

What researchers study about P21 (P021)

P021/P21 is a DGGL-region-derived, adamantane-containing peptidomimetic studied in preclinical neurobiology models. PubChem CID 56599151 reports formula C₂₇H₄₂N₆O₈ and molecular weight 578.7. Its non-standard terminus means a simple amino-acid sequence does not fully define identity. Rodent studies have explored neurogenesis and disease models, but no qualifying human trial was identified and blood–brain-barrier exposure remains insufficiently documented.

Appropriate laboratory contexts include preclinical neurogenesis and signalling models, disease-model replication, permeability and stability methods, and structural identity qualification
No approved clinical indication applies.

Mechanism context

The question the literature is testing

Preclinical work proposes effects on LIF/STAT3 and BDNF-related signalling, but pathway direction and relevance depend on model and exposure. The adamantane-containing terminus was designed to alter stability and permeability; it does not itself prove brain exposure. Detailed human pharmacology, selectivity and target engagement remain unestablished.

Evidence map

Research routes and exposure context

Evidence tierApproved finished-product context

Research areaNeurocognitive research

Routes reported in sources

OralIntraperitoneal

Dose / exposure contextProtocol-specific; verify the cited primary source

Routes and exposure contexts summarize cited studies or approved finished-product labels. They are not instructions for administering this RUO material; no customer dose is provided.

Evidence boundaries

Compatibility, limitations and decision context

Not for human or veterinary administration
No human safety data exist, and long rodent studies cannot establish human immunogenicity, carcinogenicity, reproductive safety or tolerability
Identity ambiguity, incorrect content, impurities, contamination and unsupported administration routes are material risks.

Interactions reported in the literature

No human or validated preclinical combination guidance applies
Claims involving Semax, Selank, BPC-157, NAD+ or Epitalon were removed because no qualifying interaction studies support them.

Literature context is not a supplier release result or human-use instruction. Follow your institution's approved laboratory risk assessment.

Batch documentation

P21 (P021) batch COAs

Laboratory: Manufacturer's QC laboratoryTests: HPLC purity · MS identity · endotoxin · fill amount

5 mg

Previews are blurred on purpose so the documents cannot be reused; third-party reports show their first page only. Sales sends the clear full version for the product and strength you ask about.

Independent test fails? Full refund.

Representative records, refreshed periodically

Published COAs show recent representative batches and may not be the newest. For a quote or shipment, sales confirms the lot and sends its COA.

Third-party reports, added progressively

Previews of the first page of third-party reports are on our Quality page and on the matching product pages; sales sends the full report on request. You can also send any vial from your order to an independent laboratory of your choice. Unless agreed otherwise in writing, the buyer pays for optional testing.

Help reviewing your COA

Need help reading a batch COA or third-party report? Sales can explain the test items, specifications and how the results relate to the lot under discussion.

On every batch COA: HPLC purity · MS identity · endotoxin · fill amount · Verify LyoPep

Ask for the current packet, not a generic certificate

Require the complete adamantane-containing structure, intact mass, orthogonal structural or fragment evidence, chromatographic purity, quantitative content, water, counterions, residual solvents, related substances, container integrity and lot-specific stability
Endotoxin, bioburden and sterility are separate study-dependent attributes.

Batch COA for the released lotHPLC purity with method contextMS identity resultEndotoxin resultFill amount (measured content per vial)SDS and handling statement

Available fills

Quote the fill and pack configuration you need

Reference SKUFillBase pack

P2155 mg10 vials

Other format

Also available as a nasal spray (US stock)

Black 10 mL nasal spray bottle with a clear cap — 10 mL nasal spray bottle

Besides lyophilized vials, P21 (P021) is also supplied as a nasal spray solution, shipped from our US stock.

Strengths: 5 mg
Bottle sizes: 10 mL or 20 mL
Minimum order: 10 bottles per strength and bottle size
Ships from: Our US stock

Handling

Plan storage before the parcel arrives

Follow the released-lot label, COA and stability data. Do not infer 2–8°C or −20°C storage, solution hold time or light sensitivity without data for the supplied form, container and matrix.

State the destination and timing so receipt can be planned, then move the material into its stated storage condition on arrival.

Buyer FAQ

Terms to settle before the purchase order

Can a buyer arrange third-party testing?+

Yes. You can send any vial from your order to an independent laboratory of your choice. If you want the laboratory, specification, sampling, method and acceptance rule agreed with us before testing, sales confirms them in writing. Unless otherwise agreed in writing, the buyer pays the cost of this optional testing.

What if my own lab test shows the product is out of specification?+

Send any vial from your order to an independent laboratory of your choice. If the report shows the product does not meet the specification on its COA — purity below the stated minimum, or an identity that does not match — share the report with our sales team and we refund that product in full.

Does HPLC purity prove peptide content?+

No. Chromatographic purity describes the relative peak profile under a stated method. Identity, water, counter-ion, residual solvents and assay/content may require separate methods.

How should material be stored after delivery?+

Move it into the storage condition stated on the batch COA or label as soon as it arrives, and record the package condition on receipt.

How are payment terms handled?+

Available methods and milestones depend on order value, destination and project type. The pro forma invoice should state currency, bank details, fees, payment milestones and the release condition.

Why must the testing laboratory understand peptide chemistry?+

Free-base and salt forms, hydrophilic and hydrophobic sequences, aggregation and adsorption can change sample preparation and method suitability. Use a laboratory experienced with the molecule class.

External qualification references

WHO good storage and distribution practices ISO/IEC 17025 laboratory competence 21 CFR 211.84 component testing and supplier COA controls

These are buyer-qualification references, not claims that this RUO material is regulated, certified or released under those frameworks. Applicability depends on the buyer's workflow and jurisdiction.

Selected sources

Literature behind the research context

(1) Li et al., FEBS Lett 2010 (original discovery study, titled "Neurotrophic peptides incorporating adamantane improve learning and memory, promote neurogenesis and synaptic plasticity in mice"): subcutaneous extended-release implants (25 nM/day) in adult C57Bl6 mice for 35 days significantly improved object recognition and spatial reference memory, increased dentate gyrus neurogenesis and synaptophysin/synapsin I expression; in vitro, inhibited LIF-induced STAT3 phosphorylation by approximately 30%. (2) Kazim et al., 2014 (3xTg-AD model, dosing started at 9-10 months of age for 6-12 months, 60 nmol/g feed): reduced tau hyperphosphorylation and soluble amyloid-beta, restored neurogenesis, synaptic markers, and cognitive function, increased BDNF and pGSK3beta(Ser9). (3) Baazaoui & Iqbal 2017a/b (3xTg-AD model, dosing started at 3 months of age for 18 months): rescued dendritic/synaptic deficits, increased neurogenesis (approximately 4-fold), reversed cognitive impairment, reduced neurodegeneration and tau/amyloid-beta pathology, and raised 71-week survival from 41% (vehicle) to 87% (P21-treated). (4) Mottolese et al. 2024 (CDKL5 knockout mouse model, J Neurodev Disord, DOI 10.1186/s11689-024-09583-4; juvenile dietary dosing of 60 nmol/g feed for 70 days, adult (4-month-old) intraperitoneal dosing of 750 nmol/mouse/day for 30 days): limited in vivo efficacy (only muscular rigidity improved); in vitro cell experiments showed restored proliferation, survival, and neuronal maturation. Primary source: Alzheimer's Drug Discovery Foundation Cognitive Vitality Report (alzdiscovery.org), updated May 12, 2025, which systematically reviews the above and additional studies (Khatoon et al. 2015, Bolognin et al. 2014, Kazim et al. 2017, Wei et al. 2020/2021). Cross-checked against PubChem (CID 56599151, with CAS 1246751-68-7; CID 56589645 is an associated record for the same compound), Glixxlabs technical data sheet, and ChemicalBook technical data sheet.

01
Neurotrophic peptides incorporating adamantane improve learning and memory, promote neurogenesis and synaptic plasticity in mice
FEBS Letters · 2010 · peer-reviewed original research
Open source
02
Early neurotrophic pharmacotherapy rescues developmental delay and Alzheimer's-like memory deficits in the Ts65Dn mouse model of Down syndrome
Scientific Reports · 2017 · peer-reviewed original research
Open source
03
Prevention of dendritic and synaptic deficits and cognitive impairment with a neurotrophic compound
Alzheimer's Research & Therapy · 2017 · peer-reviewed original research
Open source
04
Effects of a ciliary neurotrophic factor (CNTF) small-molecule peptide mimetic in an in vitro and in vivo model of CDKL5 deficiency disorder
Journal of Neurodevelopmental Disorders · 2024 · peer-reviewed original research
Open source
05
Diffusion MRI measures detect brain microstructure changes due to early treatment with neurotrophic peptide mimetic P021 in the 3xTg-AD mouse model of Alzheimer's disease
Magnetic Resonance Imaging · 2026 · peer-reviewed original research
Open source
06
Cognitive Vitality Reports: P021
Alzheimer's Drug Discovery Foundation (ADDF) - Cognitive Vitality · 2025 · nonprofit research-foundation evidence review
Open source
07
NIH Innovation Zone: Phanes Biotech addresses neurodegenerative disease with a groundbreaking approach
Bio.News (Biotechnology Innovation Organization / BIO) · 2023 · industry trade publication
Open source
08
NIA Small Business Showcase: Phanes Biotech
National Institute on Aging (NIA), National Institutes of Health (NIH) · 2024 · regulatory/federal-agency company profile
Open source

Product FAQ

Questions buyers ask about P21 (P021)

How should the non-standard P021 structure be identified?+

The catalogue identity is PubChem CID 56599151, formula C₂₇H₄₂N₆O₈ and average molecular mass about 578.7 Da. Because the molecule contains an adamantane-derived non-standard terminus, a shorthand peptide sequence is insufficient. Request an explicit structure, intact mass and a sequence- or structure-capable orthogonal method, plus the supplier’s terminal and counterion conventions.

Does the adamantane-containing terminus prove oral or brain exposure?+

No. It changes physicochemical properties and was designed to improve stability and delivery, but the degree of blood–brain-barrier penetration has not been directly established by robust brain-concentration data. Solubility, permeability and exposure claims must remain attached to the exact model and method rather than being treated as a guaranteed product property.

What evidence level applies to P021?+

Published findings are from cells and rodent models, with no qualifying human clinical trial identified. Results in Alzheimer’s, ageing, Down-syndrome or CDKL5 models are preclinical hypotheses and cannot be presented as human cognitive, neuroprotective or safety benefits. Concentration, route and duration from those models are not customer instructions.

Evidence before order

P21 (P021)

Key benefits

Specifications to confirm against the released lot

Identity, purity and content are separate release questions.

What researchers study about P21 (P021)

The question the literature is testing

Research routes and exposure context

Compatibility, limitations and decision context

Interactions reported in the literature

P21 (P021) batch COAs

Ask for the current packet, not a generic certificate

Quote the fill and pack configuration you need

Also available as a nasal spray (US stock)

Plan storage before the parcel arrives

Terms to settle before the purchase order

Literature behind the research context

Neurotrophic peptides incorporating adamantane improve learning and memory, promote neurogenesis and synaptic plasticity in mice

Early neurotrophic pharmacotherapy rescues developmental delay and Alzheimer's-like memory deficits in the Ts65Dn mouse model of Down syndrome

Prevention of dendritic and synaptic deficits and cognitive impairment with a neurotrophic compound

Effects of a ciliary neurotrophic factor (CNTF) small-molecule peptide mimetic in an in vitro and in vivo model of CDKL5 deficiency disorder

Diffusion MRI measures detect brain microstructure changes due to early treatment with neurotrophic peptide mimetic P021 in the 3xTg-AD mouse model of Alzheimer's disease

Cognitive Vitality Reports: P021

NIH Innovation Zone: Phanes Biotech addresses neurodegenerative disease with a groundbreaking approach

NIA Small Business Showcase: Phanes Biotech

Questions buyers ask about P21 (P021)

Buyer intelligence

Compare adjacent molecules and documentation needs.

Semax

Selank

PE-22-28

VIP