PT41, CAS No.138415-18-6, is fully artificial synthetic peptide intermediate manufactured by solid-phase peptide synthesis process. Under standard temperature and pressure, it appears as uniform white or off-white crystalline powder, with HPLC verified purity ≥99%.
Its molecular formula is C₂₂₅H₃₄₈N₄₈O₆₇S. Rich sulfhydryl groups in molecular framework deliver excellent metal ion binding capacity. It acts as core experimental raw material for multiple lab research directions, including metal ion metabolism, oxidative stress response, in-vitro cell culture and peptide biochemical mechanism analysis.
Our factory adopts standardized full-sequence synthetic workflow. Single impurity is strictly controlled ≤0.1%, total irrelevant impurities ≤1.0%. Each finished batch is equipped with full official COA certification documents, covering HPLC purity analysis, moisture testing, heavy metal limit control, organic residue inspection and microbial limit detection, fully meeting raw material standards for global biological labs and chemical research institutions.
Application Scenarios & Experimental Guidance
PT41 can be mixed with various metal ion solutions for co-incubation experiments to study intracellular chelation and detoxification mechanism of heavy metals. Researchers can set gradient concentration groups of PT41 to observe cell survival difference under heavy metal stress, so as to define quantitative correlation between peptide expression level and cellular anti-toxicity capacity. High purity of our synthetic PT41 prevents irrelevant impurities from interfering cell activity data, ensuring stable experimental repeatability.
Storage Rules
Seal the inner vial tightly after sampling, store at constant -20°C in dry and dark environment, avoid repeated freeze-thaw cycles. Frequent temperature fluctuation will destroy stable molecular conformation and weaken biological activity. Unopened finished products keep valid for 24 months under sealed low-temperature storage. After opening, finish usage within 3 months to avoid moisture absorption and air oxidation affecting purity indicators.
All bulk PT41 orders adopt vacuum sealed foil vial inner package, matched with thick foam insulated carton filled with food-grade dry ice as outer package. Stable low-temperature state can be maintained over 7 days during cross-border international logistics to avoid peptide molecular denaturation caused by temperature rise in transit. We cooperate with dedicated biochemical logistics channels of DHL and FedEx, with independent priority storage space at transit warehouses to prevent high-temperature stacking and direct sunlight exposure.
Our factory reserves master synthetic resin and standard reference samples of each PT41 batch for more than 8 years. When customers place repeat orders, we compare chromatogram and mass spectrum data of new batch with reserved standard samples one by one, to ensure purity, impurity distribution and molecular activity of each new batch are completely consistent with historical batches. For long-term cooperative labs with regular cyclic procurement demand, we can reserve stable inventory all year round, and arrange priority production and delivery to shorten order waiting cycle.
We are equipped with professional peptide R&D technical team to provide free experimental technical consultation for all cooperative customers. If customers encounter troubles in dissolving preparation, concentration matching and experimental result deviation when using PT41, technical engineers can offer targeted operation guidance and parameter adjustment suggestions online. Customized synthesis and split packaging service can be provided for customers requiring PT41 derivative modification or special pre-filled concentration preparation according to lab experimental requirements.
Advantages of Choosing Us
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ully Artificial Custom Synthesis & High Uniform Sequence
We adopt independent optimized solid-phase peptide synthesis route to produce PT41. The whole production process is closed and dedicated to peptide materials, completely avoiding cross-contamination of different products. The molecular sequence of each batch of finished product is 100% consistent with the theoretical standard sequence, without unknown foreign protein and nucleic acid impurities from biological extraction sources. The main peak purity of HPLC test reaches ≥99%, single unknown impurity is strictly controlled below 0.1%, which can meet the strict sample testing requirements of high-end academic laboratories and journal manuscript submission. -
Ultra-low Endotoxin & Stable Biological Activity
Special multi-stage gradient purification process is adopted for post-treatment. The endotoxin residue of finished PT41 is reduced to an extremely low level, which will not induce non-specific inflammatory reaction of cells and interfere with the accuracy of cell experiment data. Low-temperature vacuum freeze-drying technology is used in the drying link to eliminate molecular chain degradation caused by high-temperature drying, effectively retain the complete biological activity of peptide molecules, and ensure the stability of experimental results in long-term repeated tests. -
Complete Batch Archive & Long-term Consistency Guarantee
The master synthetic resin and standard reference samples of each production batch are stored for more than 8 years. For customer repeat orders, we will compare the chromatogram and mass spectrum data of new batches with historical standard samples item by item, so as to realize the consistent purity, impurity distribution and molecular activity of all batches of PT41. For laboratories with fixed periodic procurement demand, stable stock can be reserved all year round, with priority production and delivery to shorten the waiting cycle of orders. -
Complete Supporting Test Documents
Each batch of PT41 finished products is matched with a full set of official COA test reports, covering HPLC purity analysis, mass spectrometry full-sequence identification, moisture measurement, heavy metal limit test, organic residue inspection and microbial limit detection. All test data are original instrument output records without manual modification. COA and MSDS safety documents can be provided to journal reviewers as supporting materials to improve the passing rate of paper review. -
Professional Free Experimental Technical Support
We have a full-time peptide R&D engineer team to provide one-stop free technical consultation for all cooperative customers. When customers encounter problems such as dissolution preparation, concentration gradient setting and abnormal experimental data in the process of using PT41, engineers can provide targeted operation schemes and parameter adjustment suggestions online. Customized services such as peptide derivative modification and special concentration pre-packaging can be provided according to laboratory experimental schemes. -
Standard Low-temperature Safe Packaging & Global Logistics Matching
All PT41 bulk orders adopt vacuum sealed foil vial inner container, matched with thick foam insulation box filled with food-grade dry ice for outer protection. The packaging can maintain constant low temperature for more than 7 days during cross-border transportation to prevent peptide denaturation caused by temperature fluctuation. We cooperate with the dedicated biochemical logistics channels of DHL and FedEx, with independent priority storage positions in transfer warehouses to avoid high-temperature stacking and direct sunlight exposure of goods.
