Target Solvent
Bacteriostatic Water (0.9% Benzyl Alcohol)
Store refrigerated
Validated Laboratory Standard
Revision 1 · Lyophilized Solid Powder
Recombinant Human Erythropoietin Hormone Reference Standard. Formulated for in-vitro research and laboratory analytical validation.
Recombinant Human Erythropoietin Hormone Reference Standard. Formulated for in-vitro research and laboratory analytical validation.
EPO (Recombinant Human Erythropoietin / Epoetin Alfa) is a 165-amino-acid glycoprotein hormone synthesized via recombinant DNA technology. By binding to the erythropoietin receptor homodimer on erythroid progenitor cells, it triggers JAK2/STAT5 signaling cascades that suppress apoptosis and stimulate differentiation into mature erythrocytes. In cellular biology, non-erythropoietic tissue protection pathways mediated by the EPOR-CD131 heterodimer are also actively investigated.
Target Solvent
Bacteriostatic Water (0.9% Benzyl Alcohol)
Store refrigerated
Diluent Ratio
1 mL per 1 mg (1 mg/mL)
Slow laminar stream against vial wall; strictly avoid shaking to protect glycoprotein quaternary structure.
Lyophilized Storage
Store at -20°C.
Desiccated and protected from thermal spikes
Liquid Stability
Store at 2°C–8°C. Do not freeze.
Refrigerated and light-protected
Pharmacokinetics / Half-Life
~4 to 12 Hours (Subcutaneous absorption)
Typical protocol duration: 4 to 8 Weeks; Washout: 4 Weeks
| Standard Compound Mass | 1 mg active per vial |
| Recommended Diluent | Bacteriostatic Water (0.9% Benzyl Alcohol) |
| Diluent Volume Added | 1.0 mL |
| Resulting Concentration | 1.0 mg/mL |
| Syringe Volumetric Scale | U-100 Syringe (100 units = 1.0 mL | 1 unit = 10.0 mcg (0.01 mL)) |
Integrated reconstitution calculator and calibrated volumetric micro-plunger simulation.
Benchmark protocols from peer-reviewed clinical trials & institutional investigational programs.
| Escalation Stage & Phase | Target Dose | U-100 Mark (1mg / 1.0mL) | Cadence | Syringe Sync |
|---|---|---|---|---|
| In-Vitro Assay Titration Schedule (Weeks 1–2) | 100 mcg | 10.0 Units(0.10 mL) | 1x Daily | |
| In-Vitro Assay Titration Schedule (Weeks 3–6) | 200 mcg | 20.0 Units(0.20 mL) | 1x Daily | |
| In-Vitro Assay Titration Schedule (Weeks 7+) | 500 mcg | 50.0 Units(0.50 mL) | 1x Daily |
| Research Dose | Volume (mL) | U-100 Syringe Graduation Mark |
|---|---|---|
| 100 mcg | 0.10 mL | 10 Units 10 units |
| 200 mcg | 0.20 mL | 20 Units 20 units |
| 500 mcg | 0.50 mL | 50 Units 50 units |
| Research Dose | Calibrated Volume | U-100 Syringe Units | Graduation Description |
|---|---|---|---|
| 100 mcg | 0.1 mL (100 µL) | 10 Units | 10 units |
| 200 mcg | 0.2 mL (200 µL) | 20 Units | 20 units |
| 500 mcg | 0.5 mL (500 µL) | 50 Units | 50 units |
ISO 8537 Sterile Insulin Syringe Standard · Optical Meniscus Resolution & Volumetric Parallax Engineering
Detachable needles leave significant fluid trapped in the plastic hub collar. In peptide protocols, this causes substantial loss of active ingredient per administration.
| Barrel Capacity | Graduation Interval | Volume per Tick | Hub Dead-Space | Needle Spec | Suitability for 10 Units |
|---|---|---|---|---|---|
| 0.3 mL (30 Units)BEST FIT | 0.5 Unit | 5 µL (0.005 mL) | < 0.4 µL | 31G × 5/16" (8mm) Integrated Ultra-Fine | ✓ Accommodates 10 units |
| 0.5 mL (50 Units) | 1 Unit | 10 µL (0.010 mL) | < 0.8 µL | 30G–31G × 5/16" (8mm) Integrated | ✓ Accommodates 10 units |
| 1 mL (100 Units) | 2 Unit | 20 µL (0.020 mL) | < 2.1 µL | 29G–30G × 1/2" (12.7mm) Integrated | ✓ Accommodates 10 units |
Viewing the syringe from an angle introduces a 1.0–2.5 unit parallax error. Always raise the barrel to direct eye level against a high-contrast white background. Align the front edge of the top black plunger seal ring with the target line.
Standard 5/16" (8mm) laboratory dispensing needles are calibrated for direct 90° fluid transfer into target analytical matrix vials. If utilizing 1/2" (12.7mm) cannulas in deep laboratory vessels, introduce at a 45° angle to avoid contact with vessel sidewalls.
Stoichiometric supply planning, sequential reconstitution cadence, and itemized consumables BOM for EPO.
Do NOT reconstitute all 5 vials simultaneously. Reconstitute one vial at a time as the active protocol requires. Once reconstituted with Bacteriostatic Water USP, a vial maintains stability for 28 days at +2°C to +8°C. Remaining unopened vials should be preserved in solid lyophilized cake form at -20°C to prevent hydrolysis and oxidation.
| Week | Study / Assay Phase | Weekly Target Dose | Syringe Draw (U-100) | Active Vial # | Cumulative Active Mass |
|---|---|---|---|---|---|
| Week 1 | Initiation (Weeks 1–2) | 100 mcg | 10 Units(0.10 mL) | Vial #1(0.9mg rem) | 0.1 mg / 4.0 mg |
| Week 2 | Initiation (Weeks 1–2) | 100 mcg | 10 Units(0.10 mL) | Vial #1(0.8mg rem) | 0.2 mg / 4.0 mg |
| Week 3 | Standard Regimen (Weeks 3–6) | 200 mcg | 20 Units(0.20 mL) | Vial #1(0.6mg rem) | 0.4 mg / 4.0 mg |
| Week 4 | Standard Regimen (Weeks 3–6) | 200 mcg | 20 Units(0.20 mL) | Vial #1(0.4mg rem) | 0.6 mg / 4.0 mg |
| Week 5 | Standard Regimen (Weeks 3–6) | 200 mcg | 20 Units(0.20 mL) | Vial #1(0.2mg rem) | 0.8 mg / 4.0 mg |
| Week 6 | Standard Regimen (Weeks 3–6) | 200 mcg | 20 Units(0.20 mL) | Vial #1(0mg rem) | 1.0 mg / 4.0 mg |
| Week 7 | Target Regimen (Weeks 7+) | 500 mcg | 50 Units(0.50 mL) | Vial #2(0.5mg rem) | 1.5 mg / 4.0 mg |
| Week 8 | Target Regimen (Weeks 7+) | 500 mcg | 50 Units(0.50 mL) | Vial #2(0mg rem) | 2.0 mg / 4.0 mg |
| Week 9 | Target Regimen (Weeks 7+) | 500 mcg | 50 Units(0.50 mL) | Vial #3(0.5mg rem) | 2.5 mg / 4.0 mg |
| Week 10 | Target Regimen (Weeks 7+) | 500 mcg | 50 Units(0.50 mL) | Vial #3(0mg rem) | 3.0 mg / 4.0 mg |
| Week 11 | Target Regimen (Weeks 7+) | 500 mcg | 50 Units(0.50 mL) | Vial #4(0.5mg rem) | 3.5 mg / 4.0 mg |
| Week 12 | Target Regimen (Weeks 7+) | 500 mcg | 50 Units(0.50 mL) | Vial #4(0mg rem) | 4.0 mg / 4.0 mg |
Study duration: 4 to 8 Weeks · Washout: 4 Weeks
| Period / Phase | Target Amount | Frequency | Notes & Calibration |
|---|---|---|---|
| Weeks 1–2Starting Baseline | 100 mcg | Weekly | Initiation: Reticulocyte response baseline (10 units on U-100 syringe) |
| Weeks 3–6 | 200 mcg | Weekly | Standard Regimen: Hematocrit stabilization (20 units on U-100 syringe) |
| Weeks 7+ | 500 mcg | Weekly | Target Regimen: Maximal tissue oxygenation study (50 units on U-100 syringe) |
4-phase stability timeline, RP-HPLC degradation benchmarks, and storage SOPs for EPO
Operating Window: +2°C to +8°C (36°F to 46°F)
Active working solution dissolved in Bacteriostatic Water USP (0.9% Benzyl Alcohol).
| Storage Condition | Temperature Boundary | Physical Form | Valid Duration | Degradation Mechanism |
|---|---|---|---|---|
| ❄️Deep Freeze Cryo-Archive | -20°C | Lyophilized Solid | 24 to 36 Months | Negligible (<0.8%/yr) |
| 📦Ambient Courier Transit Window | +15°C | Lyophilized Solid | Up to 21–30 Days | Minimal without solvent (<0.5%) |
| 💧Reconstituted Refrigerated Storage (2°C–8°C) | +2°C | Reconstituted Solution | 28 to 35 Days | Gradual deamidation >28 days |
| 🚫Critical Degradation Thresholds | >37°C | Degradation Hazard | Immediate Degradation Hazard | Rapid peptide cleavage & aggregation |
Slow laminar stream against vial wall; strictly avoid shaking to protect glycoprotein quaternary structure.
EPO (Erythropoietin) displays an estimated half-life of ~4 to 12 Hours (Subcutaneous absorption). Typical study protocols run for 4 to 8 Weeks followed by a washout period of 4 Weeks.
High-purity lyophilized laboratory reference formulation with certified Certificate of Analysis (COA).
Standard Lyophilized Monograph
Recombinant Human Erythropoietin Hormone Reference Standard. Formulated for in-vitro research and laboratory analytical validation.
Store desiccated at -20°C upon receipt. Reconstitute strictly in a certified laminar airflow hood utilizing sterile disposable instruments. Avoid direct exposure to UV or fluorescent radiation.
| Net Active Mass | Target Solvent | Diluent Volume | Resulting Concentration | Syringe Graduation Scale |
|---|---|---|---|---|
| 1 mg Lyophilized Cake | Bacteriostatic Water USP (0.9% Benzyl Alcohol) | 1.0 mL | 1.00 mg/mL | 1 Unit = 10.0 mcg (0.01 mL) |
Swab vial septum with sterile 70% IPA pad. Inspect cake for vacuum seal integrity.
Introduce 1.0 mL solvent slowly down inner glass wall. Never spray directly on cake.
Swirl gently in horizontal circles until fully dissolved. Never shake or invert aggressively.
Rest at +2°C to +8°C for 10 minutes until solution is crystal clear before drawing.
| Phase | Target Active Dose | U-100 Syringe Graduation | Cadence & Pharmacological Purpose |
|---|---|---|---|
| Days 1–7 (Priming) | 100 mcg | 10.0 Units (0.100 mL) | Initial receptor priming; evaluate baseline physiological tolerance. |
| Weeks 2–4 (Saturation) | 150 mcg | 15.0 Units (0.150 mL) | Target assay maintenance; peak neurotrophic / metabolic response. |
| Weeks 5–6 (Taper & Washout) | 100 mcg | 10.0 Units (0.100 mL) | Receptor consolidation prior to mandatory 4-week washout cycle. |
RP-HPLC / LC-MS In-Vitro Assay
Purity Spec: ≥ 98.0% Area
Research Use Only (RUO)
NOT EVALUATED OR APPROVED BY FDA