What is Nandrolone Phenylpropionate?
Nandrolone Phenylpropionate (NPP — short-acting 19-nor anabolic-androgenic steroid (injectable)) is the phenylpropionate ester of nandrolone — C₂₇H₃₄O₃, MW 406.6. Shorter-acting ester than nandrolone decanoate (peak ~1–2 days, active ~5–7 days), providing faster onset and shorter activity window. 19-nor testosterone derivative with high anabolic/low androgenic ratio. Activates progesterone receptor. Partially aromatises at ~20% of testosterone rate.
Research Applications
Short-Acting 19-nor Nandrolone
Faster onset and shorter activity vs decanoate — precise dosing interval research
High Anabolic/Low Androgenic Research
19-nor structure — anabolic with reduced androgenic activity vs testosterone
NPP vs DECA Comparison
Ester length comparison: NPP (short) vs nandrolone decanoate (long) pharmacokinetics
Progestogenic Activity
PR agonism and progesterone receptor cross-reactivity research
Muscle Preservation & Nitrogen Retention
Anti-catabolic effects in acute catabolic state research models
Quick Specs
| Form |
C₂₇H₃₄O₃ |
| 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 temp sealed | 2–8°C recommended |
| Brand |
China |
Certificate of Analysis (COA)
Frequently Asked Questions
How do I reconstitute this peptide?
QSC injectable solutions are supplied ready-to-use — no reconstitution required. Each vial contains the stated concentration in pharmaceutical-grade carrier (oil or aqueous). Draw using a sterile syringe appropriate for the solution viscosity.
How should this peptide be stored?
Oil-based solutions: store at room temperature (15–25°C), away from direct sunlight — do not refrigerate as cold temperatures can cause crystallisation. Aqueous solutions: store at 2–8°C. Properly stored, injectable solutions are stable for 2–3 years.
What purity is this QSC compound and how is it verified?
All QSC injectable compounds are ≥99% pure 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 temp sealed | 2–8°C recommended
