Quality Standard

Appearance: light yellow or light brown transparent liquid;

Content: ≥99.0%;

Moisture: ≤0.5%

Quality Standard

Appearance: colorless or light yellow transparent liquid;

Purity: ≥99.0%;

Moisture: <0.5%

Quality Standard

Appearance: white or almost white powder;

Content≥99.0%;

Loss on drying <1.0%

Quality Standard

Appearance: colorless or light yellow transparent liquid;

Content≥98.5%;

Quality Standard

Appearance: light yellow or light brown transparent liquid;

Purity: ≥98.0%;;

3-Acetylthiophene: ≤0.5%;

Moisture: ≤0.5%