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  • 8.51030 - 5(6)-Carboxytetramethylrhodamine

8.51030 EMD Millipore


5(6)-Carboxytetramethylrhodamine Novabiochem®. CAS 98181-63-6, molar mass 430.45 g/mol., Novabiochem®

Synonym: 5(6)-TAMRA

  • CAS Number 98181-63-6

  • Linear Formula C₂₅H₂₂N₂O₅

  • Molecular Weight 430.45 g/mol



brand family   Novabiochem
packaging   100 mg in Plastic bottle (8510308100)
  500 mg in Plastic bottle (8510308500)
mp   >300 °C
storage temp.   Store at +2°C to +8°C.
specifications   Colour (visual): dark red to grey-purple
  Appearance of substance (visual): powder
  Identity (IR): passes test
  Purity (TLC(011C)): ≥ 97 %
  Assay (HPLC, area%): ≥ 95.0 % (a/a)
  For TLC-Systems see our General Catalog


Background information

Novabiochem®'s 5(6)-carboxytetramethylrhodamine (TAMRA; λex555 nm, λem 580 nm) is a useful tool for preparing fluorescently-labeled peptides. It is supplied as a mixture of 5-and 6-isomers, making it cost effective for those applications which do not require a single isomer dye.

The product number for this product was previously 01-63-0134.

To obtain a certificate of analysis (CoA) of a lot that begins with the letter "A", please select the option in the right hand menu "Request a COA for Lot#s starting with A".

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Safety Information

HS Code 
3204 90 00
Storage class 
10 - 13 Other liquids and solids
WGK 3 highly water endangering
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