Bromothymol blue

PH indicator range: 6.0（yellow）---7.6（blue） Residue on ignition (as sulfate): 0.3% max Mass-absorption coefficient (L/cm·g): 52.0% min

CAS NO:76-59-5

EC NO:200-971-2

Molecular Formula:C₂₇H₂₈Br₂O₅S

Molecular Weight:624.3812

Synonyms:;3,3-Dibromothymolsulfonephthalein;Bromthymol Blue;BTB;alpha,alpha-bis(5-bromo-4-hydroxy-6-methyl-m-cumenyl)toluene-2,alpha-sultone;dibromothymolsulphonephthalein;3,3-Dibromophenolsulfonephthalein;4,4'-(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis[2-bromo-3-methyl-6-(propan-2-yl)phenol];2-bromo-4-[3-(3-bromo-4-hydroxy-2-isopropyl-5-methyl-phenyl)-1,1-dioxo-benzo[c]oxathiol-3-yl]-3-isopropyl-6-methyl-phenol;

Molecular Structure: