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109244-58-8

109244-58-8 structure
109244-58-8 structure
  • Name: Dihydrorhodamine 123
  • Chemical Name: Dihydrorhodamine 123
  • CAS Number: 109244-58-8
  • Molecular Formula: C21H18N2O3
  • Molecular Weight: 346.379
  • Catalog: Dye Reagents
  • Create Date: 2018-03-04 08:00:00
  • Modify Date: 2024-01-11 16:51:02
  • Dihydrorhodamine 123 is a fluorescent probe (λex=488 nm, λem=525 nm).

Name Dihydrorhodamine 123
Synonyms MFCD00285712
Benzoic acid, 2-(3,6-diamino-9H-xanthen-9-yl)-, methyl ester
Methyl 2-(3,6-diamino-9H-xanthen-9-yl)benzoate
Description Dihydrorhodamine 123 is a fluorescent probe (λex=488 nm, λem=525 nm).
Related Catalog
In Vitro In the presence of 10 μM Dihydrorhodamine 123 (DHR) the stimulation of the neutrophil NADPH oxidase by the addition of 50 nM phorbol 12-myristate 13-acetat (PMA) resultes in an increase in the rate of rhodamine generation. The fluorescent intensity of the cells, in the presence of 10 μM Dihydrorhodamine 123, increases with time following the addition of 50 nM PMA. In the presence of 10 μM Dihydrorhodamine 123, induced HL60 cells show a sustained increase in fluorescence following the addition of 50 nM PMA[1].
Cell Assay The HL60 cells are incubated at 6×106 cells/mL in Krebs-Ringer buffer at 37°C containing 10 μM Dihydrorhodamine 123 (DHR). The generation of O2- is initiated by the addition of 50 nM phorbol 12-myristate 13-acetat (PMA) and the progress of the generation of rhodamine 123 is monitored in 50-μL aliquots (3×105 cells) diluted tenfold before analysis. The uninduced HL60 cells are loaded with 5 μM carboxy SNARF-1 AM acetate (SNARF-AM) in the Na+ medium for 10 min at 37°C and washed by centrifugation and resuspension to remove unhydrolysed SNARF ester[1].
References

[1]. Lydia M. Henderson et al. Dihydrorhodamine 123: a fluorescent probe for superoxide generation? Eur.J.Biochem. 217, 973-980.

Density 1.3±0.1 g/cm3
Boiling Point 526.9±50.0 °C at 760 mmHg
Molecular Formula C21H18N2O3
Molecular Weight 346.379
Flash Point 222.4±26.4 °C
Exact Mass 346.131744
PSA 87.57000
LogP 1.84
Vapour Pressure 0.0±1.4 mmHg at 25°C
Index of Refraction 1.684
Storage condition -20°C
Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes T+
Safety Phrases S22-S24/25
RIDADR NONH for all modes of transport
WGK Germany 3.0
HS Code 2932999099
HS Code 2932999099
Summary 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%