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Is it normal that the cell pellets from PromoCell (C‑14***) do not freeze at -20°C?

Yes. This is completely normal.
PromoCell cell pellets (C‑14***) are supplied in RNAlaterTM, and these samples do not freeze at -20°C. They remain liquid at both 4°C and -20°C.
 
Storage stability of RNAlaterTM samples 
  • Room temperature: stable for up to 1 week
  • 4°C: stable for up to 1 month
  • -20°C: can be stored indefinitely, even though the sample remains liquid
The liquid state at -20°C does not indicate a problem with sample integrity or stability.

Products relevant to this topic

NHEK.f Pellet
NHEK.f Pellet
Cat No C-14001
Cell pellet of NHEK from the epidermis of juvenile foreskin or adult skin in RNAlater® for subsequent RNA, DNA or protein analysis.
CHF 333.00
NHEK adult Pellet
NHEK adult Pellet
Cat No C-14002
Cell pellet of NHEK from the epidermis of juvenile foreskin or adult skin in RNAlater® for subsequent RNA, DNA or protein analysis.
CHF 283.00
NHEK.f pooled Pellet
NHEK.f pooled Pellet
Cat No C-14003
Cell pellet of NHEK from the epidermis of juvenile foreskin or adult skin in RNAlater® for subsequent RNA, DNA or protein analysis.
CHF 286.00
NHEK adult, pooled Pellet
NHEK adult, pooled Pellet
Cat No C-14004
Cell pellet of NHEK from the epidermis of juvenile foreskin or adult skin in RNAlater® for subsequent RNA, DNA or protein analysis.
CHF 246.00
Human Follicle Dermal Papilla Cells (HFDPC), Cell Pellet in RNAlater
Human Follicle Dermal Papilla Cells (HFDPC), Cell Pellet in RNAlater
Cat No C-14005
Cell pellet of HFDPC from human dermis of the scalp in RNAlater® for subsequent RNA, DNA or protein analysis.
CHF 526.00
HUVEC Pellet, single donor
HUVEC Pellet, single donor
Cat No C-14008
Cell pellet of HUVEC 2 isolated from the umbilical vein in RNAlater® for subsequent RNA, DNA or protein analysis.
CHF 229.00
HUVEC Pellet, pooled donors
HUVEC Pellet, pooled donors
Cat No C-14009
Cell pellet of HUVEC 2 isolated from the umbilical vein in RNAlater® for subsequent RNA, DNA or protein analysis.
CHF 213.00
HUVEC Pellet
HUVEC Pellet
Cat No C-14010
Cell pellet of HUVEC from the vein of the umbilical cord in RNAlater® for subsequent RNA, DNA or protein analysis.
CHF 229.00

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