Questions About Cancer? 1-800-4-CANCER
  • Print
  • Facebook
  • Twitter
  • Google+
  • Pinterest

NCI Drug Dictionary


methylene blue 
A synthetic basic dye. Methylene blue stains to negatively charged cell components like nucleic acids; when administered in the lymphatic bed of a tumor during oncologic surgery, methylene blue may stain lymph nodes draining from the tumor, thereby aiding in the visual localization of tumor sentinel lymph nodes. When administered intravenously in low doses, this agent may convert methemoglobin to hemoglobin. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
Synonyms:Azul de Metileno
Blu di Metilene
CI Basic Blue 9
Colour Index No. 52015
Methylenum Caeruleum
Methylthioninii Chloridum
Methylthioninium Chloride
Schultz No. 1038
Tetramethylthionine Chloride Trihydrate
US brand name:Urolene Blue
Foreign brand names:Azul Metile
Code name:CI-52015