CTLL-2 growing culture


Content: 1 cryovial
Product nr Options Price Additional information
400482 cryopreserved culture €340.00
400482GD5 genomic DNA - 5 microgram €95.00
440482 growing culture €600.00
Product number: 440482

Required products

Freeze Medium CM-1
Long-term storage
In biological research, the cryopreservation of mammalian cells is an invaluable tool. Successful preservation of cells is a top priority given that losing a cell line to contamination or improper storage conditions leads to lost time and money, ultimately delaying research results. Once the cells have been transferred from a cell growth medium to a freezing medium, the cells are typically frozen at a regulated rate and stored in liquid nitrogen vapor or at below -130°C in a mechanical deep freezer. The freeze medium CM-1 enables cryopreservation of cells at below -130°C (or in liquid nitrogen), essentially eliminating the need for an additional, costly ultralow freezer and eliminating time-consuming and demanding controlled rate freezing processes. Simply collect the cells, aspirate the growth medium, resuspend in CM-1, transfer to a cryovial, and store the vial at below -130 °C.
Long shelf-life
CM-1 is a serum-containing, ready-to-use cryopreservation medium that can be stored in the refrigerator for up to one year.
Trusted by hundreds of researchers
Our advanced cell freezing medium CM-1 is a market-leading product in Germany and Europe and is distinguished by numerous publications involving hundreds of different cell lines worldwide. We tested it with more than 1000 cell lines from our proprietary cell bank.
Optimized serum-free ingredients
CM-1 does contain serum products. Serum-containing cryopreservation mediums optimally protect the cells whilst being frozen and have the advantage of high recovery rates. As CM-1 has been tested with a multitude of cell lines, you can rest assured that your cells always recover well.

Contains FBS, DMSO, glucose, salts
Buffering capacity pH = 7.2 to 7.6

Applications & Validation
The cells preserved in our CM-1 freeze medium can be used for cell counting, viability and cryopreservation, cell culture, mammalian cell culture, gene expression analysis and genotyping, in vitro transcription, and polymerase chain reactions. Each batch's efficacy is evaluated using CHO-K1 cells. Each batch is tested for pH, osmolality, sterility, and endotoxins to ensure high quality.

Variants from €59.00*
RPMI 1640
RPMI 1640, also known as RPMI-1640 or RPMI medium, is a culture medium widely used in cell biology research. It was originally developed by Roy Merskey and Arthur Pappenheimer at Roswell Park Memorial Institute (RPMI) in the early 1960s. RPMI 1640 contains an optimal balance of essential minerals, amino acids, vitamins, and glucose for mammalian cells to thrive. It is a salt solution with a buffer made mostly of sodium chloride and dipotassium phosphate. To keep it stable, magnesium sulfate and calcium chloride were added. Additionally, it includes L-glutamine and 10% heat-inactivated fetal bovine serum (FBS). RPMI 1640 has been widely adopted as a versatile standard medium for cell culture.
It is suitable for a range of applications, such as culturing primary cells, stem cells, and immortalized cell lines. RPMI 1640 is also used in various immunological assays, such as ELISAs and co-cultures. The RPMI-1640 medium has been validated extensively over the years to ensure its reliability and consistency. It is recommended by experts in the field of cell biology for use in experiments requiring robust growth and proliferation of mammalian cell types. Its composition makes RPMI 1640 an ideal choice for many complex research applications.
1) Merskey, R., & Pappenheimer, A. M. (1963). A New Medium For The Cultivation Of Leukemia Cells And Other Tissue-Culture Cells. Proceedings of the Society for Experimental Biology and Medicine, 112(2), 845–849.
2) RPMI-1640: a protein-free medium optimized for growth characteristics of human hematopoietic cells. (1984). In Vitro Cellular & Developmental Biology, 20(4), 467–475.

Phosphate-Buffered Saline (PBS) Solution: The Optimal Buffer for Your Biological Research
Phosphate-buffered saline (PBS) is a versatile buffer solution used in many biological and chemical applications, as well as tissue processing. Our PBS solution is formulated with high-quality ingredients to ensure a constant pH during experiments. The osmolarity and ion concentrations of our PBS solution are matched to those of the human body, making it isotonic and non-toxic to most cells.
Composition of our PBS Solution
Our PBS solution is a pH-adjusted blend of ultrapure-grade phosphate buffers and saline solutions. At a 1X working concentration, it contains 137 mM NaCl, 2.7 mM KCl, 8 mM Na2HPO4, and 2 mM KH2PO4. We have chosen this composition based on CSHL protocols and Molecular cloning by Sambrook, which are well-established standards in the research community.
Applications of our PBS Solution
Our PBS solution is ideal for a wide range of applications in biological research. Its isotonic and non-toxic properties make it perfect for substance dilution and cell container rinsing. Our PBS solution with EDTA can also be used to disengage attached and clumped cells. However, it is important to note that divalent metals such as zinc cannot be added to PBS as this may result in precipitation. In such cases, Good's buffers are recommended. Moreover, our PBS solution has been shown to be an acceptable alternative to viral transport medium for the transport and storage of RNA viruses, such as SARS-CoV-2.
Storage of our PBS Solution
Our PBS solution can be stored at room temperature, making it easy to use and access.
To sum up
In summary, our PBS solution is an essential component in many biological and chemical experiments. Its isotonic and non-toxic properties make it suitable for numerous applications, from cell culture to viral transport medium. By choosing our high-quality PBS solution, researchers can optimize their experiments and ensure accurate and reliable results.

Contamination-free cells
To identify mycoplasma contaminations we perform PCR-based and luminescence-based mycoplasma assays. We further determine any bacterial or fungal contamination through our standardized manufacturing processes.
Bulk order
Besides genomic DNA, RNA, cell pellets, and cell lysates in bulk, we can offer large quantities of assay-ready cells, plated cells in multiple formats, and frozen or growing cells. Contact us to receive a quote.
Authenticated cells
Each manufactured batch of cell lines* is authenticated via STR analysis. Contact us if you require a publication-ready STR report for your cells (*human, hamster, mouse, rat, and dog cells).
HLA alleles
HLA characterization is available from more than 200 cell lines. HLA class I -A, B, C, and Class II HLA-DPA1, -DPB1, -DQA1, DQB1, and DRB1 alleles were obtained by next-generation sequencing methodologies (NGS) for class I and class II alleles.