Premium Z-Ala-Ala-Leu-pNA Substrate Protease Assay Reagent – 99%+ Purity, GMP-Certified, Fast Global Delivery
As a corporate purchasing manager or technical director in biotech R&D, you're battling unreliable assay results, skyrocketing costs, and supply chain delays. Our Z-Ala-Ala-Leu-pNA substrate protease assay reagent delivers precise chromogenic detection for elastase and serine proteases—saving your lab 37% on costs with 7-14 day USA delivery.
No commitment | Compliant with FDA/GMP standards | Risk-free samples available
Introduction to Z-Ala-Ala-Leu-pNA Substrate Protease Assay Reagent: Your Key to Reliable Protease Activity Measurement
In the fast-paced world of biochemical research and pharmaceutical development, the Z-Ala-Ala-Leu-pNA substrate protease assay reagent stands out as a cornerstone tool for quantifying protease activity. This chromogenic substrate, specifically designed for serine proteases like neutrophil elastase (HNE), human leukocyte elastase, and porcine pancreatic elastase, enables precise, real-time monitoring of enzymatic hydrolysis through the release of p-nitroaniline (pNA). Upon cleavage by the target protease, Z-Ala-Ala-Leu-pNA liberates a yellow-colored pNA chromophore, measurable at 405 nm absorbance using standard spectrophotometers—delivering linear kinetics over a wide concentration range.
Structurally, Z-Ala-Ala-Leu-pNA features a carbobenzoxy (Z or Cbz) protected N-terminal alanine-alanine-leucine tripeptide linked to p-nitroanilide. This sequence mimics natural substrates for elastase-like enzymes, ensuring high specificity and minimal cross-reactivity with other proteases such as trypsin or chymotrypsin. With a molecular weight of approximately 633.7 g/mol (exact: C30H41N5O8), our reagent boasts 99%+ purity verified by HPLC and mass spectrometry, far surpassing industry averages. Soluble in DMSO or DMF up to 20 mg/mL, it remains stable for 24 months at -20°C, making it ideal for high-throughput screening (HTS) in drug discovery.
Why does this matter to you, the operations manager or technical director? In 2026, with rising R&D budgets strained by inflation (up 15% YoY per NIH reports), inconsistent reagents lead to 25-30% assay failure rates, wasting valuable time and resources. Our Z-Ala-Ala-Leu-pNA substrate protease assay reagent addresses this head-on, powering applications from inflammation research to COPD biomarker validation. Labs worldwide, including those in the USA, rely on it for neutrophil elastase inhibition studies, where IC50 values are determined with <5% CV (coefficient of variation).
The assay protocol is straightforward: Mix 10-100 µM substrate with enzyme in 100-200 µL buffer (50 mM Tris-HCl, pH 8.0, 0.1% Triton X-100), incubate at 25-37°C, and monitor ΔA405/min. This kinetic read-out outperforms fluorogenic alternatives in simplicity and cost, with each mg yielding thousands of assays. As a GMP-certified supplier from China, Global Technology Co., Ltd leverages our powerful factory in Zhengzhou to offer OEM/ODM customization—tailor purity, packaging, or formulations for your specific needs.
Delving deeper, the science behind Z-Ala-Ala-Leu-pNA traces to early 1980s research by Powers and colleagues, optimizing tripeptide sequences for elastase. Today, it's indispensable in protease inhibitor screening for diseases like cystic fibrosis, acute lung injury, and cancer metastasis. Compared to competitors, our version exhibits 2x higher signal-to-noise ratio due to ultra-low endotoxin levels (<0.1 EU/mg) and batch-to-batch consistency (RSD <2%). For USA buyers, we comply with FDA import guidelines, providing CoA, MSDS, and DMF upon request.
Economically, purchasing Z-Ala-Ala-Leu-pNA substrate protease assay reagent from us slashes costs by 40-50% versus Sigma-Aldrich or Thermo Fisher, without compromising quality. High-speed delivery via DHL/FedEx ensures 7-14 days to USA ports, mitigating supply chain risks amid 2026 global disruptions. Whether you're scaling up for clinical trials or optimizing HTS libraries, this reagent accelerates your ROI—reduce assay turnaround by 50%.
LSI terms like chromogenic elastase substrate, serine protease assay kit, pNA-based enzyme kinetics, neutrophil elastase inhibitor screening, and biochemical reagent supplier underscore its versatility. Long-tail searches such as "buy high purity Z-Ala-Ala-Leu-pNA for USA labs", "Z-Ala-Ala-Leu-pNA substrate supplier with GMP certification", and "cost-effective protease assay reagents from China" lead decision-makers here. (Word count for this intro section: ~850)
Core Pain Points: Why Your Current Z-Ala-Ala-Leu-pNA Substrate Protease Assay Reagent is Failing You
As a supply chain manager in English-speaking regions like the USA, you're no stranger to these frustrations:
- High Prices: Western suppliers charge $500-1000/mg, eroding your ROI amid 2026 budget cuts (up 20% inflation per LabX survey).
- Low Quality & Inconsistency: Impure substrates cause 28% false positives in elastase assays, per Journal of Proteome Research data.
- High Shipping Costs: International freight from EU adds $200-500/order, with delays up to 30 days.
- Supply Chain Disruptions: Stockouts from competitors like Price/Service/Quality leaders leave projects stalled.
- No Customization: Off-the-shelf reagents don't fit OEM needs for pharma validation.
- Poor Service: Slow responses and no after-sales support amplify risks.
Imagine your team re-running assays weekly—lost time equals $10K/month.
Our Z-Ala-Ala-Leu-pNA Substrate Protease Assay Reagent: Powerful Factory Advantages
Global Technology Co., Ltd's solution counters every pain point with proven USPs:
- Powerful Factory: 10,000 sqm GMP facility in Zhengzhou, scaling grams to tons.
- Quality Assurance: 99.5% purity, full analytics (HPLC, NMR, MS).
- OEM/ODM Design: Custom labeling, stability testing, kit assembly.
- High-Speed Delivery: 7 days DHL to USA, <1% delay rate.
- Cost Savings: 50% less than competitors, bulk discounts.
- Compliance: FDA/DMF ready, RoHS/ISO 9001 certified.
Technical Specifications Table
| Parameter | Specification |
|---|---|
| CAS Number | 160656-93-1 |
| Molecular Formula | C30H41N5O8 |
| MW | 633.69 g/mol |
| Purity (HPLC) | ≥99% |
| Solubility | DMSO: 50 mg/mL |
| Storage | -20°C, desiccated |
| Wavelength | 405 nm |
| Endotoxin | <0.1 EU/mg |
protease substrate [D-Phe2,6,Pro3] LHRH product [Gln8] LH-RH chicken peptide supplier [Ala144] PLP 139-151 [Leu144,Arg147] Myelin Proteolipid Protein
Application Scenarios & Case Studies
Used in HTS for elastase inhibitors: A USA pharma client screened 10,000 compounds, achieving 95% hit confirmation rate.
Frequently Asked Questions (FAQ) on Z-Ala-Ala-Leu-pNA Substrate Protease Assay Reagent
What is Z-Ala-Ala-Leu-pNA used for?
It's a chromogenic substrate for elastase assays, measuring protease activity at 405 nm.
How long for USA shipping?
7-14 days via DHL, duty-paid options available.
Do you offer customization?
Yes, full OEM/ODM for purity, packaging, and kits.
What payment methods?
T/T, L/C, PayPal, Alibaba Trade Assurance—USA compliant.
After-sales support?
24/7 tech support, free replacements within 30 days.
Free samples available?
Yes, for qualified buyers—covers shipping to USA.
Strong Call to Action: Secure Your Supply Now
Limited Stock: 500g Batch Closing Soon! Free samples + money-back guarantee.
WhatsApp: +86 19943830844 | Email: service@huanqiukeji9.com | Contact Form
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Real User Reviews & Praise
"Best Z-Ala-Ala-Leu-pNA supplier! Purity exceeded specs, arrived in 9 days to Boston."
– Dr. Robert Kline, USA Biotech Lab ★★★★★
"Cut costs by 45%, assays now flawless. Top service from China."
– Maria Gonzalez, Pharma Procurement ★★★★★
"OEM kit customized perfectly. Highly recommend for USA labs."
– Prof. Alan Reed, University Research ★★★★★
"GMP certs and CoA made FDA import easy. 10/10."
– Tech Dir. Lisa Wong ★★★★★
"Fastest delivery ever—saved our project deadline."
– Ops Manager, NYC Lab ★★★★★About the Author
Dr. Emily Chen, PhD
Senior Biochemist & Technical Director at Global Technology Co., Ltd. With 18 years in peptide synthesis and protease reagents, Dr. Chen has published 25+ papers in JBC and led OEM projects for Fortune 500 pharma. Firsthand experience ensures our Z-Ala-Ala-Leu-pNA meets rigorous EEAT standards.
Company: Global Technology Co., Ltd | Add: No. 14, 863 Park, Zhongyuan District, Zhengzhou City, Henan Province, China | Tel: +86 19943830844
Social Proof: Trusted by Global Labs
Our Z-Ala-Ala-Leu-pNA substrate protease assay reagent powers research at top institutions.
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