LoSeraTM RPMI-1640 w/ HEPES buffer and Sodium bicarbonate w/o L-Glutamine (Liquid requiring reduced serum supplementation)

Product#: HM-RSL012
Ships in 1-2 weeks


LoSera™ RPMI-1640
With 25mM HEPES buffer and Sodium bicarbonate
Without L-Glutamine
1X Liquid Cell Culture Medium requiring reduced serum supplementation

Product Code: HM-RSL012

Product Description:

LoSera™ media are based on the classical formulations supplemented with insulin, transferrin and other advanced nutrients. The additional nutrients help in reducing the percentage of serum required to grow most of the common cell lines. The percentage of serum reduction may vary with type of cell line used. For nonfastidious cell lines serum can be reduced from 10% to as low as 1%. For fastidious cell lines serum usage can be reduced from 10% to 2.5%. LoSera™ medium can be used without prior adaptation and sub cultured using normal procedures. Reduced serum supplementation improves the reproducibility of experimental results by decreasing the variability caused due to undefined serum constituents. It also facilitates down regulation process in bioassays and in purification process of culture products.

RSL012 is LoSera™ RPMI-1640 with HEPES buffer and sodium bicarbonate. It does not contain L-glutamine. HEPES, a zwitterionic buffer having a pKa of 7.3 at 37ºC prevents the initial rise in pH that tends to occur at the initiation of a culture and increases the buffering capacity of the medium. Users are advised to review the literature for recommendations regarding medium supplementation and physiological growth requirements specific for different cell lines.


Ingredients mg/L   Ingredients mg/L
Calcium nitrate tetrahydrate 100.000   Choline chloride  3.000
Disodium hydrogen phosphate anhydrous  800.000   D-Biotin  0.200
Magnesium sulphate anhydrous  48.840   D-Ca-Pantothenate  0.250
Potassium chloride  400.000   Folic acid  1.000
Sodium bicarbonate  2000.000   Niacinamide  1.000
Sodium chloride  6000.000   Pyridoxine hydrochloride  1.000
AMINO ACIDS     Riboflavin  0.200
Glycine 10.000   Thiamine hydrochloride  0.100
L-Arginine hydrochloride  241.870   Vitamin B12  0.005
L-Asparagine anhydrous  50.000   i-Inositol  35.000
L-Arginine hydrochloride  126.000   p-Amino benzoic acid (PABA)  1.000
L-Aspartic acid  20.000   OTHERS  
L-Cysteine dihydrochloride  65.150   D-Glucose  2000.000
L-Glutamic acid  20.000   Glutathione reduced  1.000
L-Histidine hydrochloride  20.960   Growth Supplement mix  Proprietary
L-Isoleucine  50.000   HEPES Buffer  5958.000
L-Leucine  50.000   Phenol red sodium salt  5.300
L-Lysine hydrochloride  40.00      
L-Methionine  15.000      
L-Phenylalanine  15.000      
L-Proline  20.000      
L-Serine  30.000      
L-Threonine  20.000      
L-Tryptophan  5.000      
L-Tyrosine disodium salt  28.830      
L-Valine  20.000      

  1. Add 20ml of 200mM L-glutamine (TCL012) or HiGlutaXL™ supplement (TCL030) for 1 litre of medium.

Recommendations for use with LoSera™ Media:
  1. LoSera™ media have been optimized at 2.5% concentration for a broad range of cell culture applications. Recommended concentrations of serum using LoSera™ media ranges from 1-5%. However the concentration of serum used may need to be adjusted for specific cell types or applications to achieve optimal results. Titration of FBS concentration is recommended to determine maximum serum reduction.
  2. LoSera™ media are provided as 1X solutions and need to be supplemented with 4mM Glutamine and required amount of reduced serum.
  3. In case of antibiotics being used to control contamination, it is recommended to reduce the amount of antibiotics in proportion to the amount of serum reduced.

Material required but not provided:
  • L-Glutamine solution 200mM (TCL012)
  • HiGlutaXL™ Supplement (TCL030)
  • Fetal Bovine Serum (RM1112/RM10432)

Quality Control:
  • Appearance: Orangish red colored, clear solution.
  • pH:7.00 -7.60
  • Osmolality in mOsm/Kg H2O: 280.00 -320.00
  • Sterility: No bacterial or fungal growth is observed after 14 days of incubation, as per USP specification.
  • Cultural Response: The growth promotion capacity of the medium is assessed qualitatively by analyzing the cells for the morphology and quantitatively by estimating the cell counts and comparing it with a control medium through minimum three subcultures.
  • Endotoxin Content: NMT 5EU/ml

Storage and shelf life:
  • Store at 2-8°C away from bright light.
  • Shelf life is 12 months.
  • Use before expiry date given on the product label.

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