What is NPP?
Nandrolone Phenylpropionate (NPP) is the short-acting phenylpropionate ester of nandrolone (19-nortestosterone). Provides the same pharmacological profile as nandrolone decanoate but with faster onset and shorter active duration (~5–7 days), enabling more precise research protocols. Research use only.
Research Applications
Short-Acting Nandrolone PK
Phenylpropionate hydrolysis kinetics vs decanoate — 5–7 day active window
NPP vs DECA Comparison
Ester effect on nandrolone release profile — AUC, Cmax, depot clearance
Collagen & Connective Tissue
Short-protocol nandrolone collagen studies, tendon fibroblast, articular cartilage
Progestogenic Research
19-nor PR binding in acute vs sustained nandrolone exposure models
Erythropoiesis & Haematology
EPO pathway activation with short-ester nandrolone — reticulocyte, haematocrit studies
Quick Specs
| Form |
C27H34O3, MW 406.6 |
| Purity |
≥99% by HPLC — every batch |
| CAS Number |
62-90-8 |
| Molecular Weight |
MS molecular weight confirmed — every batch |
| Specification |
≥99% by HPLC — every batch |
| Shelf Life |
24 months (unopened) |
| Storage |
Room temperature sealed | cool, dry storage |
| Manufacture |
In-house synthesis — Qingdao, China |
| Brand |
China |
Frequently Asked Questions
How do I reconstitute this peptide?
QSC raw powder compounds are supplied as bulk crystalline or amorphous powder in a sealed, labelled container at the stated quantity. No reconstitution is required — the powder is ready for weighing and use in research applications.
How should this peptide be stored?
Store at room temperature (15–25°C) in a cool, dry place away from moisture, heat, and direct light. Keep in the original sealed container. Properly stored raw powder remains stable for 2–3 years.
What purity is this QSC compound and how is it verified?
All QSC raw powder compounds are tested to ≥99% purity by HPLC on every production batch, with MS-confirmed identity. COA is published on the product page and independently verifiable at verify.janoshik.com.
🧪 Peptide Research Tools: Use QSC's free
peptide calculators — reconstitution, BAC water, dosing, half-life, and mixing charts.
🌍 Domestic shipping: 🇺🇸 USA 5–7 days
🌏 International shipping: 7–14 days
⚠️ RESEARCH USE ONLY — NOT FOR HUMAN CONSUMPTION
QSC products are strictly for in vitro and in vivo laboratory research.
Safety & Handling
🚫
Not for Human Use
These compounds are for research only.
🥽
PPE Required
Always use appropriate protective equipment.
❄️
Storage Compliance
Follow product-specific storage conditions.
Product-Specific Storage
Room temperature sealed | cool, dry storage
