CAS NO:143-74-8

EC NO:205-609-7

Molecular Formula:C₁₉H₁₄O₅S

Molecular Weight:354.3765

Synonyms:;Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis-, S,S-dioxide;Phenol Red Free Acid Cell Culture Tested;Phenol Red, indicator;Phenolsulfonephthalein;Phenolsulfonphthalein;4,4'-(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol;Phenol Red Indicator;

Molecular Structure:

CAS NO:2243-76-7;66676-71-9

EC NO:218-818-3

Molecular Formula:C₁₃H₉N₃O₅

Molecular Weight:287.2277

Synonyms:;C.I. 14030;Alizarine Yellow R;5-(4-Nitrophenylazo)salicylic acid;Alizarin Yellow R;Alizarin yellow R (0.1% in Water) [for PH Determination];Acid Mordant Orange R;3-[(4-nitrophenyl)hydrazono]-6-oxocyclohexa-1,4-diene-1-carboxylate;2-hydroxy-5-[(E)-(4-nitrophenyl)diazenyl]benzoic acid;2-hydroxy-5-(4-nitrophenyl)azo-benzoic acid;

Molecular Structure: