Chemical Name: Sulfo-1,8-naphthalic anhydride potassium salt
CAS No.: 71501-16-1
Molecular Fomula: C12H5KO6S
Molecular weight: 316.33
Appearance: White to orange to green crystals
Assay: 99%
Chemical Name: 1H-Benzimidazole-2-methanol
CAS No.: 4856-97-7
Molecular Fomula: C8H8N2O
Molecular weight: 148.16
Appearance: Off-white or light brown powder
Chemical Name: Tetraterbium heptaoxide
CAS No.: 12037-01-3
Molecular Fomula: O7Tb4-2
Molecular weight: 747.7
Appearance: Brown to black powder
Assay: 99.95%min