P21 (P021)
SKU: 99421531907

P21 (P021)

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Description

P21 (P021)P21 (P021) Cyclin dependent Kinase Inhibitor 1A (CDKN1A): Ultra Pure Research Peptide Verified Purity & Trusted Results High Purity Research Peptide 99% Verified Peptide Grade Quality for Advanced Laboratory & Research Applications Scientifically Validated Certificate of Analysis (COA) & Precision HPLC Analytical Verification Preferred by Leading Researchers and Institutions Worldwide Chemical Information: Synonyms: P21, P021, CDKN1A, Cyclin dependent

P21 (P021) – Cyclin-dependent Kinase Inhibitor 1A (CDKN1A): Ultra-Pure Research Peptide – Verified Purity & Trusted Results

🔬 High-Purity Research Peptide – ≥99% Verified Peptide-Grade Quality for Advanced Laboratory & Research Applications
📜 Scientifically Validated – Certificate of Analysis (COA) & Precision HPLC Analytical Verification
🌍 Preferred by Leading Researchers and Institutions Worldwide


Chemical Information:

  • Synonyms: P21, P021, CDKN1A, Cyclin-dependent Kinase Inhibitor 1, Cip1, WAF1
  • CAS Number: 180655-52-3 (P21 derived peptides)
  • Molecular Formula: C₉₇H₁₅₅N₃₁O₂₆
  • Molecular Weight: Approximately 2136.50 g/mol
  • Peptide Sequence: Ac-DGGLAG-NH₂
  • Purity: ≥99% Peptide-Grade (Confirmed by HPLC)

Scientific Overview:

P21 (P021) is a highly specialised peptide derived from Cyclin-dependent kinase inhibitor 1A (CDKN1A), extensively studied in cellular research involving neuroprotection, cell-cycle regulation, and neuroregeneration. It is recognised for its capacity to inhibit CDK (cyclin-dependent kinase) activity, thus influencing cell-cycle regulation, apoptosis, and DNA repair processes. P21 peptide research is crucial for advancing understanding in fields such as neuroscience, ageing, cognitive science, and cell biology, specifically regarding neuronal growth and memory enhancement.


Key Scientific References & Literature:


Why Choose Our P21 (P021)?

HPLC Analytical Verification – ≥99% purity assurance for precise experimental reproducibility
Certificate of Analysis (COA) – Included with every order; scan QR code for instant authenticity checks
Material Safety Data Sheet (MSDS) – Comprehensive handling instructions provided for laboratory safety compliance
Manufactured in a UK Laboratory – Adherence to rigorous UK quality control and GMP standards
Express Delivery – Prompt dispatch and secure packaging ensuring peptide stability and integrity
Independent Third-Party Testing – Available upon request for added scientific credibility


For Research Use Only

Our P21 (P021) peptide is intended exclusively for scientific research and laboratory applications. It is strictly not for human consumption or therapeutic purposes.

Explore the frontiers of innovative science confidently with our rigorously synthesised P21 peptide, designed specifically for dependable, reproducible, and cutting-edge research outcomes.

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SKU: 99421531907

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Nichole
Lowell, US
★★★★★ 5
Helpful study guide
Format: Paperback
Helped me pass the CAPM. Broke material into domains and practice questions after each domain helps to apply the material to scenarios
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Reviewed in the United States on February 11, 2026
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Amazon Customer
Bozeman, US
★★★★★ 5
CAPM PASSED
Format: Paperback
Used this as main study tool passed on first try ! Studied from Dec 2nd -25 took test on Dec 26
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Reviewed in the United States on December 27, 2025
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Danielle
Chelsea, US
★★★★★ 3
Typos and confusing/missing information
Format: Paperback, Format: Paperback
I finished Domain 1 and it's okay. Things are explained well, but there are a lot of typos and strange formatting. The cover of the book says 2025-2026, but the spine of the book says 2024-2025. The way that the quiz questions are worded is confusing and sometimes repetitive. I had 2 of the same questions in a row in one section. I'm struggling to take some quizzes because the questions that are being asked do not reference any material from that section (or anywhere in the book so far). I feel like there is information missing in the sections because the quizzes have random terms that have never been mentioned. Example: D1: Essential knowledge questions I am being asked about estimation tools like story points, relative estimation, and planning poker. Nowhere in the book have those things been mentioned.
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Reviewed in the United States on July 23, 2025
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Lisa Costa
Draper, US
★★★★★ 5
You got this! Focus on your education
Format: Paperback
Excellent !
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Reviewed in the United States on January 25, 2026
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Tia Thompson
Natrona Heights, US
★★★★★ 5
I passed!!! —Highly Recommend
Format: Paperback
Great study guide and structure tailored to the 4 domains that are in the CAPM Exam. I just passed the exam on my first try scoring above target in 3/4 categories and target in 1/4 categories. The online simulations was a great way to prepare for the exam. Highly recommend you purchase to pass the first try! (This and the PMBOK Guide 7th edition were the only study materials I used)
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Reviewed in the United States on May 20, 2025

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