Puromycin 10 mg/mL Cell Culture Reagent
Puromycin 10 mg/mL is a sterile-filtered, animal origin-free liquid antibiotic reagent for selection and maintenance workflows in cell culture. Supplied as CCM-RG-0039 in a 1 mL format, it is intended for research and bioprocessing environments requiring a ready-to-use concentrated stock. This reagent has a specified pH of 6.0–7.0, endotoxin limit of ≤5 EU/mL, and 24-month shelf life when stored as directed. Free worldwide shipping is available for qualified orders.
- ✓ Free worldwide shipping
- ✓ ISO-aligned manufacturing
- ✓ Certificate of Analysis on request
- ✓ Bulk & custom volumes quoted on request
Overview
CCM-RG-0039 is a 10 mg/mL puromycin solution supplied as a 1 mL liquid reagent for cell culture selection protocols. Puromycin is an aminonucleoside antibiotic commonly used to select mammalian or other eukaryotic cells carrying a compatible resistance marker. In culture systems, it acts rapidly by interfering with protein synthesis, enabling efficient enrichment of resistant cell populations when the working concentration has been established for the specific cell type, medium composition, and process design.
The product is classified as animal origin-free and is sterile-filtered for direct use as a concentrated stock in qualified laboratory workflows. Key specifications include liquid form, pH 6.0–7.0, endotoxin ≤5 EU/mL, and a declared shelf life of 24 months under recommended storage conditions. It is part of the CellCultureMedia cell culture reagents portfolio and is suitable for procurement programs that require defined documentation, cold-chain control, and lot-specific quality visibility.
Applications
- Selection of cultured cells engineered to express a validated puromycin resistance marker, following laboratory-established kill curve data.
- Maintenance of stable cell pools or clonal cell lines after the appropriate sustaining concentration has been determined for the cell model.
- Support for transfection, transduction, and genome-editing workflows where antibiotic selection is used as a process step.
- Use in research cell culture systems that require an animal origin-free antibiotic stock and controlled endotoxin specification.
- Scale-aware reagent sourcing for R&D groups, core facilities, and process development teams that need consistent 1 mL units or bulk purchasing through request-for-quote procurement.
Storage and Handling
Store CCM-RG-0039 at -30 to -5 °C protected from light. The product ships on dry ice to maintain frozen cold-chain conditions during transit. Upon receipt, verify that the vial remains frozen or appropriately cold, record the lot information, and transfer promptly to a qualified freezer. Avoid repeated freeze-thaw cycles by aliquoting under aseptic conditions if multiple uses are expected. Thaw only the quantity required for near-term work, mix gently after thawing, and do not use if visible contamination, unexpected turbidity, or container damage is observed. Always determine an application-specific working concentration before routine use, because puromycin sensitivity varies by cell type, culture density, serum level, exposure time, and expression system.
Quality and Documentation
This puromycin reagent is manufactured and released using ISO-aligned quality practices appropriate for research and bioprocessing supply chains. Sterile filtration, animal origin-free classification, pH specification, endotoxin limit, and shelf-life assignment support controlled incoming material review by procurement, QA, and laboratory operations teams. A lot-specific Certificate of Analysis is available on request, and additional documentation can be coordinated through the CellCultureMedia quality support process. Free worldwide shipping is offered where available, with dry-ice packaging used for temperature-sensitive dispatch. For standing orders, multi-lot planning, or volume-based pricing, customers may request a formal quotation referencing CCM-RG-0039.
Specifications
Formulation Highlights
Contains (+)
[+]10 mg/mL Puromycin
Storage & Handling
Storage: -30~-5 ℃, protected from light. Shelf life: 24 months. Ship cold-chain where required.
Quality & Documentation
Manufactured under ISO-aligned quality management systems. Full documentation — Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), formulation summary, and stability data — is available on request. Email [email protected] with the SKU.
About this product
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Learn more about this
- Puromycin for Mammalian Cell SelectionPuromycin is an aminonucleoside antibiotic from Streptomyces alboniger that mimics the aminoacyl end of tRNA, enters the ribosomal A site and causes premature release of a truncated peptide chain, killing cells that cannot inactivate it. In mammalian cell culture it is used as a selection agent at 0.5-10 ug/mL, most commonly 1-2 ug/mL, and it kills non-resistant cells faster than any other common selection antibiotic -- typically within 2-5 days. Resistance is conferred by the pac gene encoding puromycin N-acetyltransferase, which acetylates the drug and renders it inactive. Because the effective concentration depends strongly on cell line, cell density and serum content, a kill curve must be run for each new cell line and each new lot of puromycin.
- Penicillin-Streptomycin and Antibiotic-Antimycotic in Cell CulturePenicillin-streptomycin, universally shortened to pen-strep, is supplied as a 100X sterile solution containing 10,000 units/mL penicillin G and 10,000 ug/mL streptomycin, diluted 1:100 into medium to give a working concentration of 100 U/mL penicillin and 100 ug/mL streptomycin. Penicillin blocks bacterial cell wall synthesis and covers mainly Gram-positive organisms; streptomycin binds the bacterial 30S ribosomal subunit and covers mainly Gram-negatives, so the pair gives broad antibacterial coverage. Antibiotic-antimycotic (anti-anti) is the same combination plus 25 ug/mL amphotericin B at 100X, giving 0.25 ug/mL in use for antifungal coverage. Neither controls mycoplasma, and major cell banks including ATCC recommend against routine antibiotic use because it masks low-level contamination rather than preventing it.
- Selection Antibiotics for Mammalian Cell LinesSelection antibiotics are cytotoxic agents used to isolate mammalian cells that carry a co-transfected resistance gene, by killing every cell that does not. The five standard agents are G418/geneticin (100–2000 µg/mL, resistance gene neo), hygromycin B (50–1000 µg/mL, hph), blasticidin S (1–20 µg/mL, bsd or bsr), zeocin (50–1000 µg/mL, Sh ble) and puromycin (0.5–10 µg/mL, pac). The correct concentration is not the one on the datasheet but the one determined empirically for your cell line by a kill curve — the lowest concentration that kills 100% of untransfected cells within the agent's normal selection window, which is 2–4 days for puromycin and up to 14 days for G418.