Appearance：Pale yellow liquid
Assay：≥85%
Volatiles：≤ 1%
Ash：≤ 0.1%
Transmittance：
425nm: ≥95%
450nm: ≥96%
500nm: ≥97%

Appearance：Colorless liquid
Assay：≥96%
Volatiles：≤ 0.5%
Ash：≤ 0.1%
Color：≤ 50
Transmittance：
425nm: ≥98%
500nm: ≥99%

Appearance：White powder or granular
Volatiles：≤ 0.5%
Ash：≤ 0.2%
Melting point：≥65°C
Transmittance：
425nm: ≥95%
500nm: ≥97%

Appearance：White powder or granular
Volatiles：≤ 1%
Molecular weight：2100-3000
Ash：≤ 0.1%
Melting point：110-130°C
Transmittance：
450nm: ≥93%
500nm: ≥97%

Appearance：White or Pale yellow powder
Assay：≥99%
Volatiles：≤ 0.2%
Ash：≤ 0.1%
Melting point：81-85°C
Transmittance：
425nm: ≥98%
500nm: ≥99%

Appearance：Pale yellow powder
Assay：≥99%
Volatiles：≤ 0.5%
Ash：≤ 0.1%
Transmittance：
425nm: ≥95%
500nm: ≥97%

Appearance：White powder
Volatiles：≤ 1%
Ash：≤ 0.2%
Melting point：≥90°C
Transmittance：
425nm: ≥93%
500nm: ≥97%

Appearance：White powder
Volatiles：≤ 1%
Ash：≤ 0.2%
Transmittance：
425nm: ≥93%
500nm: ≥97%