High Purity DSIP Polypeptide Lyophilized Powder 99% For Laboratory Research CAS 62568-57-4

Product Detail ——

DSIP is a short-chain artificially synthesized polypeptide compound, produced via standardized solid-phase peptide synthesis technology, followed by multi-gradient chromatographic purification and vacuum freeze-drying treatment, widely supplied as biochemical raw material for in-vitro academic laboratory research projects. The whole production process adopts closed automated assembly line control, each preparation step including amino acid coupling, peptide chain cleavage, desalting and freeze-drying molding is strictly inspected by professional quality control personnel, which effectively guarantees consistent batch quality, lowers residual impurity content and maintains stable physicochemical properties of finished lyophilized powder for a long time.

The finished product we provide is uniform white lyophilized powder, without caking, discoloration, particulate impurities and other abnormal conditions under visual observation. The HPLC purity is strictly controlled at 99%. We regularly test core indicators including water content, heavy metal residue, residual acidic substances and microbial limits. Each production batch can be provided with official Certificate of Analysis, HPLC chromatogram and complete quality inspection documents, which fully meets the filing requirements of university life science laboratories, biomedical research institutions and biochemistry formulation R&D departments, meanwhile complies with cross-border commodity import inspection standards of various countries and regions worldwide.

Core Product Characteristics & Performance Advantages

1. Excellent physicochemical stability: Vacuum freeze-drying molding technology effectively slows down the hydrolysis and degradation rate of polypeptide molecular chains. Sealed container packaging can isolate moisture, oxygen and ultraviolet light erosion during long-distance cross-border transportation, so product quality will not deteriorate under conventional room temperature transit conditions; when stored under specified low-temperature environment, the valid shelf life can reach up to 24 months.
2. Excellent water solubility: The lyophilized powder can be rapidly and completely dissolved in sterile purified water, PBS buffer solution and all conventional laboratory aqueous solvent systems, no insoluble residues will be generated after dissolution. Scientific researchers can prepare experimental mother liquor with different concentration gradients according to diverse research schemes, and the prepared aqueous solution maintains stable properties within the validity period, which will not interfere with the accuracy and repeatability of subsequent cell incubation tests and biochemical molecular detection data.
3. Ultra-low impurity interference: Multi-stage gradient chromatographic purification thoroughly removes truncated peptide fragments, synthetic raw material residues and salt ions generated in the synthesis reaction process, irrelevant impurity content is controlled at an extremely low level. It can effectively avoid extra interference variables in polypeptide spatial structure research, protein molecular binding experiments, intracellular signal pathway exploration and other academic research work, greatly reducing the occurrence probability of experimental errors.
4. Flexible customizable packaging specifications: We set multiple packaging options to satisfy different experimental consumption demands of purchasers. Small trial packages are suitable for preliminary exploratory laboratory experiments; medium batch specifications are applied for repeated verification tests; large bulk sealed drums can continuously supply raw materials for long-term cyclic experiments of large research institutions and biochemical formula development enterprises.

Official Compliance Statement For Applicable Scope

We clearly stipulate that this high-purity DSIP polypeptide raw material is only allowed to be used for in-vitro academic laboratory scientific research projects. The applicable research fields include polypeptide molecular structure analysis, cellular physiological mechanism exploration, enzyme activity detection experiments, biological metabolic pathway research, synthetic peptide reagent formula development and other basic life science research directions.

This product has not obtained drug approval documents, food safety evaluation qualification and health care product filing permission issued by any national regulatory authority. It is strictly prohibited for buyers to apply this raw material to human oral intake, bodily administration, clinical trial testing, dietary supplement raw material blending, capsule and tablet preparation, cosmetic raw material addition and daily chemical product processing. All legal risks and adverse consequences caused by usage beyond the scope of in-vitro laboratory research shall be fully borne by the purchaser, our company will not undertake any relevant liabilities arising from improper application.

Standard Storage Operation Specifications

1. Short-term temporary storage (within 3 months): Tighten the cap of the original container for complete sealing, place the product in a cool and dry environment away from direct sunlight, and store it in a refrigerator at 2°C ~ 8°C; avoid frequent opening of the seal to prevent moisture absorption and air infiltration.
2. Long-term sealed preservation (more than 3 months): Conduct secondary sealing treatment on the bottle mouth, store the whole product at a constant low temperature of -20°C, strictly prohibit repeated freezing and thawing cycles, otherwise the polypeptide molecular chain will break and the structural stability of the lyophilized powder will be damaged.
3. Preservation after dissolution into experimental aqueous solution: After the lyophilized powder is prepared into aqueous solution for laboratory testing, all in-vitro experimental operations must be completed within 7 days under refrigerated conditions; the remaining unused liquid waste shall be discarded properly to prevent microbial contamination and degradation of active components.

Global Order, Logistics & Full-Cycle After-sales Services

We support both small sample trial orders and large-volume bulk orders, and personalized packaging adjustment can be arranged according to customer demands. After we confirm receipt of your payment, the warehouse team will complete packaging and arrange delivery within 1 to 2 working days. We cooperate with mainstream international cross-border express providers including EMS, UPS, DHL and FedEx, covering most regions across Europe, Southeast Asia, North America, Oceania and other continents worldwide. The average whole transportation cycle is 12 to 15 working days, and real-time logistics tracking service is available for all orders.

Our professional foreign trade service team provides one-stop full-cycle supporting services for all global cooperative purchasers, including pre-sales product parameter consultation, personalized quotation formulation, customs clearance document arrangement, post-delivery preservation technical guidance, product quality feedback handling and other supporting work. Adhering to the service tenet of stable product quality, reasonable pricing, punctual delivery and sincere communication, we sincerely welcome academic researchers, laboratory procurement personnel and biochemical raw material distributors from all over the world to establish long-term stable win-win cooperative partnership with us.

Product Working Principle

DSIP belongs to artificially synthesized short-chain polypeptide molecule, which is prepared through complete solid-phase peptide synthesis, peptide chain cleavage, multi-stage purification and vacuum freeze-drying procedures. In the simulated in-vitro cell biochemical reaction system built for laboratory research, it serves as experimental substrate and auxiliary biochemical reagent, mainly used to study polypeptide molecular spatial conformation, intermolecular binding reaction rules and corresponding cell physiological mechanism changes.

Gradient purification technology is adopted in the whole production process to remove synthetic by-products and residual raw materials step by step, making the HPLC purity of finished lyophilized powder steadily reach 99%. High-purity raw materials can eliminate impurity interference factors in various peptide biochemistry experiments, ensure the authenticity, reliability and repeatability of academic research data, and provide stable raw material support for academic paper writing and scientific research project development.

We emphasize repeatedly that this item is customized exclusively for in-vitro academic laboratory research, and it does not possess any qualification for pharmaceutical, food and health care application. Any application behavior on human body is prohibited, all risks brought by unauthorized usage shall be undertaken by purchasers themselves. Complete quality inspection documents can be provided at any time for laboratory filing and project audit work.