Formula: C₁₉H₁₅ClN₄ Formula Weight: 334.81 CAS Number: 298-96-4

(phenolsulfonphthalein, sodium salt) Formula: NaOSO2C6H4C(C6H4-4-OH):C6H4-4-(:O) Formula Weight: 376.37 CAS Number: 34487-61-1 Specific Gravity: 1L = .00 Kg

(thymolsulfonphthalein) Formula: C27H30O5S Formula Weight: 466.6 CAS Number: 76-61-9 Specific Gravity: 1L = .00 Kg

(5',5''-dibromo-o-cresolsulfonphthalein) Formula: C21H16Br2O5S Formula Weight: 540.22 CAS Number: 115-40-2 Specific Gravity: 1L = .00 Kg

(phenolsulfonphthalein) Formula: C19H14O5S Formula Weight: 354.39 CAS Number: 143-74-8 Specific Gravity: 1L = .00 Kg

(vitamin B6 hydrochloride) Formula: C8H11NO3·HCl Formula Weight: 205.64 CAS Number: 58-56-0 Specific Gravity: 1L = .00 Kg

Formula: C₁₅H₁₁ON₃ Formula Weight: 249.28 CAS Number: 85-85-8 Synonym(s): 1-(2-pyridylazo)-2-naphthol