Talk:Trypan blue

Sodium salt or free acid?
CAS lists this CAS# (72-57-1) and name as the tetrasodium salt, but we have the free acid shown. Can someone confirm which one is the dye? Walkerma (talk) 05:20, 20 January 2009 (UTC)

Molecular mass
PubChem claim that the TB molecular weight is 960.8 g/mol, not 872.88. Please confirm and update. Akokustatal (talk) 08:45, 9 January 2020 (UTC)


 * Check the chemical formula. The relative molecular mass has to be consistent with that.  —DIV  Support good-faith IP editors:  insist that Wikipedia's administrators adhere to Wikipedia's own policies on keeping range-blocks as a last resort, with minimal breadth and duration, in order to reduce adverse collateral effects;  support more precisely targeted restrictions such as protecting only articles themselves, not associated Talk pages, or presenting pages as semi-protected, or blocking only mobile edits when accessed from designated IP ranges.  (1.145.44.122 (talk) 11:03, 2 November 2023 (UTC))