Target Solvent
Bacteriostatic Water (0.9% Benzyl Alcohol)
Store refrigerated
Validated Laboratory Standard
Revision 1 · Lyophilized Solid Powder
Isolated Lipolytic C-Terminal Fragment of Human Growth Hormone. Formulated for in-vitro research and laboratory analytical validation.
Isolated Lipolytic C-Terminal Fragment of Human Growth Hormone. Formulated for in-vitro research and laboratory analytical validation.
HGH Fragment 176-191 is the unmodified C-terminal peptide fragment (amino acids 176–191) of human growth hormone. Unlike the full 191-amino-acid somatropin protein, this isolated peptide domain specifically isolates the lipolytic and anti-lipogenic properties of GH through beta-3 adrenergic receptor pathways without altering plasma IGF-1 concentrations, stimulating cell mitosis, or causing hyperglycemia or insulin resistance.
Target Solvent
Bacteriostatic Water (0.9% Benzyl Alcohol)
Store refrigerated
Diluent Ratio
2 mL per 5 mg (2.5 mg/mL)
Slow laminar stream against vial wall; gentle swirling without agitation.
Lyophilized Storage
Store at -20°C.
Desiccated and protected from thermal spikes
Liquid Stability
Store at 2°C–8°C.
Refrigerated and light-protected
Pharmacokinetics / Half-Life
~30 Minutes (Rapid clearance; sustained downstream lipolysis)
Typical protocol duration: 8 to 16 Weeks; Washout: 4 Weeks
| Standard Compound Mass | 5 mg active per vial |
| Recommended Diluent | Bacteriostatic Water (0.9% Benzyl Alcohol) |
| Diluent Volume Added | 2.0 mL |
| Resulting Concentration | 2.5 mg/mL |
| Syringe Volumetric Scale | U-100 Syringe (100 units = 1.0 mL | 1 unit = 25.0 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 (5mg / 2.0mL) | Cadence | Syringe Sync |
|---|---|---|---|---|
| In-Vitro Assay Titration Schedule (Weeks 1–2) | 250 mcg | 10.0 Units(0.10 mL) | 1x Daily | |
| In-Vitro Assay Titration Schedule (Weeks 3–8) | 500 mcg | 20.0 Units(0.20 mL) | 1x Daily | |
| In-Vitro Assay Titration Schedule (Weeks 9+) | 1 mg | 40.0 Units(0.40 mL) | 1x Daily |
| Research Dose | Volume (mL) | U-100 Syringe Graduation Mark |
|---|---|---|
| 250 mcg | 0.10 mL | 10 Units 10 units |
| 500 mcg | 0.20 mL | 20 Units 20 units |
| 1,000 mcg | 0.40 mL | 40 Units 40 units |
| Research Dose | Calibrated Volume | U-100 Syringe Units | Graduation Description |
|---|---|---|---|
| 250 mcg | 0.1 mL (100 µL) | 10 Units | 10 units |
| 500 mcg | 0.2 mL (200 µL) | 20 Units | 20 units |
| 1,000 mcg | 0.4 mL (400 µL) | 40 Units | 40 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 HGH Fragment 176-191.
Do NOT reconstitute all 12 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) | 250 mcg(7x/wk) | 10 Units(0.10 mL) | Vial #1(3.25mg rem) | 1.8 mg / 52.5 mg |
| Week 2 | Initiation (Weeks 1–2) | 250 mcg(7x/wk) | 10 Units(0.10 mL) | Vial #1(1.5mg rem) | 3.5 mg / 52.5 mg |
| Week 3 | Standard Regimen (Weeks 3–8) | 500 mcg(7x/wk) | 20 Units(0.20 mL) | Vial #2(1.5mg rem) | 7.0 mg / 52.5 mg |
| Week 4 | Standard Regimen (Weeks 3–8) | 500 mcg(7x/wk) | 20 Units(0.20 mL) | Vial #3(1.5mg rem) | 10.5 mg / 52.5 mg |
| Week 5 | Standard Regimen (Weeks 3–8) | 500 mcg(7x/wk) | 20 Units(0.20 mL) | Vial #4(1.5mg rem) | 14.0 mg / 52.5 mg |
| Week 6 | Standard Regimen (Weeks 3–8) | 500 mcg(7x/wk) | 20 Units(0.20 mL) | Vial #5(1.5mg rem) | 17.5 mg / 52.5 mg |
| Week 7 | Standard Regimen (Weeks 3–8) | 500 mcg(7x/wk) | 20 Units(0.20 mL) | Vial #6(1.5mg rem) | 21.0 mg / 52.5 mg |
| Week 8 | Standard Regimen (Weeks 3–8) | 500 mcg(7x/wk) | 20 Units(0.20 mL) | Vial #7(1.5mg rem) | 24.5 mg / 52.5 mg |
| Week 9 | Intensive Regimen (Weeks 9+) | 1.0 mg(7x/wk) | 40 Units(0.40 mL) | Vial #8(0mg rem) | 31.5 mg / 52.5 mg |
| Week 10 | Intensive Regimen (Weeks 9+) | 1.0 mg(7x/wk) | 40 Units(0.40 mL) | Vial #9(0mg rem) | 38.5 mg / 52.5 mg |
| Week 11 | Intensive Regimen (Weeks 9+) | 1.0 mg(7x/wk) | 40 Units(0.40 mL) | Vial #10(0mg rem) | 45.5 mg / 52.5 mg |
| Week 12 | Intensive Regimen (Weeks 9+) | 1.0 mg(7x/wk) | 40 Units(0.40 mL) | Vial #11(0mg rem) | 52.5 mg / 52.5 mg |
Study duration: 8 to 16 Weeks · Washout: 4 Weeks
| Period / Phase | Target Amount | Frequency | Notes & Calibration |
|---|---|---|---|
| Weeks 1–2Starting Baseline | 250 mcg | Daily fasted | Initiation: Lipolytic threshold assessment (10 units on U-100 syringe) |
| Weeks 3–8 | 500 mcg | Split morning/evening | Standard Regimen: Accelerated adipocyte lipid export (20 units on U-100 syringe) |
| Weeks 9+ | 1 mg | Split morning/evening | Intensive Regimen: Maximal lipid oxidation rates (40 units on U-100 syringe) |
4-phase stability timeline, RP-HPLC degradation benchmarks, and storage SOPs for HGH Fragment 176-191
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; gentle swirling without agitation.
HGH Fragment 176-191 displays an estimated half-life of ~30 Minutes (Rapid clearance; sustained downstream lipolysis). Typical study protocols run for 8 to 16 Weeks followed by a washout period of 4 Weeks.
High-purity lyophilized laboratory reference formulation with certified Certificate of Analysis (COA).
Standard Lyophilized Monograph
Isolated Lipolytic C-Terminal Fragment of Human Growth Hormone. 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 |
|---|---|---|---|---|
| 5 mg Lyophilized Cake | Bacteriostatic Water USP (0.9% Benzyl Alcohol) | 2.0 mL | 2.50 mg/mL | 1 Unit = 25.0 mcg (0.01 mL) |
Swab vial septum with sterile 70% IPA pad. Inspect cake for vacuum seal integrity.
Introduce 2.0 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) | 250 mcg | 10.0 Units (0.100 mL) | Initial receptor priming; evaluate baseline physiological tolerance. |
| Weeks 2–4 (Saturation) | 375 mcg | 15.0 Units (0.150 mL) | Target assay maintenance; peak neurotrophic / metabolic response. |
| Weeks 5–6 (Taper & Washout) | 250 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