Thermosensitive Dye D8 (4-Hydroxy-4'-isopropoxydiphenyl Sulfone) CAS NO: 95235-30-6

4-Hydroxy-4'-isopropoxydiphenylsulfone

Chinese aliases: Thermochromic dye D-8; 4-Hydroxy-4-isopropoxydiphenylsulfone; D-8; 4'-Hydroxy-4'-isopropoxydiphenylsulfone

English name: 4-Hydroxy-4'-isopropoxydiphenylsulfone

English aliases: 4-(4-isopropoxyphenylsulfonyl)phenol; D-8;

4-Isopropyloxyphenyl-4'-Hydroxyphenylsulfone; 4-[4-(1-methylethoxy)phenyl]sulfonyl]-Phenol;

CAS NO: 95235-30-6

Molecular formula: C15H16O4S

Appearance: White crystals

Purity (HPLC): ≥99.5%

Molecular weight: 292.35

Density: 1.251 g/cm³

Boiling point: 478.789°C at 760 mmHg

Flash point: 243.363°C

Melting point: 127°C-131°C

Loss on drying: ≤0.2%

4,4'-Dihydroxydiphenyl sulfone (BPS): ≤0.5%

Usage: Mainly used as a color developer for thermal paper and thermal medical dry films.