{"product_id":"thermo-scientific-170357n-serological-pipette-25-ml-sterile-sealed","title":"Thermo Scientific Serological Pipette 25 ml Sterile Sealed Case of 200 Pipets","description":"\u003ch3\u003eThermo Scientific™ Sterile Nunc™ Serological Pipettes, 25 mL (170357N) – Case of 200\u003c\/h3\u003e\n\u003cp\u003eThe Thermo Scientific™ 170357N is an optical-grade, sterile liquid handling consumable engineered for precise fluid measurement, cell culture feeding, and reagent dosing within biological safety cabinets and cleanrooms. Fabricated from ultra-clear, 100% virgin polystyrene, this 25 mL serological pipette features a specialized **bidirectional graduation scale** alongside descending negative numbers to maximize fluid extraction capacity. Supplied as a commercial case of 200 individually paper\/plastic peel-wrapped pipettes, this single-use model integrates a premium premium aerosol-blocking barrier plug, guaranteeing absolute sample purity while eliminating cross-contamination risks inside motorized pipetting controllers.\u003c\/p\u003e\n\u003ch3\u003eTechnical Performance \u0026amp; Design\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-Contrast Bidirectional Graduations: Outfitted with permanent, high-contrast black printed markings indicating ascending and descending volumetric values. This design streamlines fast aliquot counting while the **extra negative graduations** expand the total working volume beyond the nominal 25 mL mark.\u003c\/li\u003e\n\u003cli\u003eAerosol-Blocking Filter Barrier: Equipped with a uniform, low-linting synthetic fiber filter plug securely fitted inside the upper neck. The hydrophobic filter acts as a physical shield, capturing liquid overflow and protecting the internal mechanism of automated pipet guns from aerosol tracking.\u003c\/li\u003e\n\u003cli\u003eDrip-Free Precision Tip Geometry: Designed with an optimized internal taper and a calibrated tip orifice. This geometric profile ensures a laminar, splash-free liquid stream, allowing researchers to dispense fluids droplet-by-droplet without meniscus lag or fluid hang-up.\u003c\/li\u003e\n\u003cli\u003ePaper-Plastic Peel Packaging: Every pipette is individually isolated inside a high-purity paper-backed plastic film wrapper. The peel-apart configuration allows for clean, fiber-free aseptic opening, minimizing external particle shedding when transferring tools into cell culture suites.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCatalog Number \/ MPN: 170357N (Nunc™ Serological Pipette Series)\u003c\/li\u003e\n\u003cli\u003ePrimary Manufacturer: Thermo Fisher Scientific\u003c\/li\u003e\n\u003cli\u003eNominal Volumetric Capacity: 25 mL\u003c\/li\u003e\n\u003cli\u003eNegative Volumetric Range: Calibrated up to an additional -8.0 mL capacity\u003c\/li\u003e\n\u003cli\u003eGraduation Increments: Calibrated in clear 0.2 mL intervals\u003c\/li\u003e\n\u003cli\u003eMaterial Chemistry: Crystal-grade, USP Class VI virgin polystyrene (PS) | Latex-free\u003c\/li\u003e\n\u003cli\u003eColor-Coding Matrix: Universal Magenta Color Banding on pipet neck and outer cartons for fast volume sort identification\u003c\/li\u003e\n\u003cli\u003eSterility \u0026amp; Purity Status: Gamma irradiated (Sterile baseline); Certified Non-Pyrogenic, RNase-free, DNase-free, and Non-Cytotoxic\u003c\/li\u003e\n\u003cli\u003ePackaging Configuration: Case of 200 Pipettes (Individually paper-plastic wrapped units organized neatly in high-density dispenser cartons)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Benefits \u0026amp; Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAseptic Tissue Culture Media Feedings: The premier choice for cleanroom media replacement loops, cell splitting protocols, and buffer distribution in 150 cm² to 225 cm² culture flasks.\u003c\/li\u003e\n\u003cli\u003eHigh-Purity Bioprocessing Prep: Provides an inert, contaminant-free pathway for transferring cell suspensions, enzyme master mixes, or viral vectors without introducing leachable chemical toxins.\u003c\/li\u003e\n\u003cli\u003e**Universal Motorized Gun Alignment:** The standardized top-end mouthpiece diameter docks securely into all major automated pipet controller adapters, eliminating fluid weeping or unexpected tip wobbling.\u003c\/li\u003e\n\u003cli\u003ecgmp-Compliant Lot Traceability: Each individual paper\/plastic wrapper is directly printed with the manufacturing lot code and expiry metric, simplifying institutional quality auditing and batch tracking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eThermo Scientific™ and Nunc™ are registered commercial trademarks of Thermo Fisher Scientific Inc. Catalog number 170357N specifies the 25 mL paper\/plastic individually wrapped configuration. For high-volume facility routines where rapid bench deployment is desired over standalone pouch isolation, alternative bulk plastic wrapped canister or alternative color-coded 10 mL and 50 mL configurations can be specified within the supply hub.\u003c\/small\u003e\u003c\/p\u003e","brand":"Thermo Scientific","offers":[{"title":"Default Title","offer_id":49237253390588,"sku":"9039","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/thermo-scientific-serological-pipette-25-ml-sterile-sealed-case-of-200-pipets-pipets-pipette-tips-thermo-scientific-942994.jpg?v=1782844891","url":"https:\/\/lifesciencestrading.com\/products\/thermo-scientific-170357n-serological-pipette-25-ml-sterile-sealed","provider":"Life Sciences Trading","version":"1.0","type":"link"}