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Merck
CN

TOX4

In Vitro Toxicology Assay Kit, Neutral Red based

Synonym(s):

NR uptake assay, Neutral red assay

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About This Item

NACRES:
NA.84
UNSPSC Code:
12352207
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form

liquid

Quality Level

usage

1 kit sufficient for 1,000 tests

packaging

pkg of 1 kit

storage condition

dry at room temperature

λmax

540 nm

application(s)

cell analysis
detection

detection method

colorimetric

storage temp.

2-8°C

General description

For spectrophotometric measurement of viable cells. Absorbance of converted dye is measured at a wavelength of 540 nm.

Application

In Vitro Toxicology Assay Kit, Neutral Red based has been used:
  • to measure the lysosomal enzyme activity in HB8902 cells
  • to study the cell viability of human alveolar epithelial cells
  • to study the cell viability in fibroblasts

Biochem/physiol Actions

Neutral red (NR) is a red dye that accumulates in the lysosome by actively transferring across the cell membranes. The dye is extracted and the uptake is quantitated by spectroscopy. The NR uptake assay is the most commonly used cytotoxicity test. It is widely applicable in environmental and biomedical studies to estimate the number of viable cells in culture. The NR dye in vitro tissue culture studies is used in assessing viral cytopathogenicity and detection of toxic compounds.


signalword

Danger

Hazard Classifications

Carc. 1B - Flam. Liq. 3 - Skin Sens. 1

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

73.4 °F

flash_point_c

23 °C

Regulatory Information

危险化学品

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