Cas No.

[6969-71-7]

Appearance:

Light yellow crystalline powder

m.p.:

232-235°C

Single of impurities:

≤0.5%(TLC)

Sum of impurities:

≤ 1%(TLC)

Absorptivity:

0~0.15(2%,at 420~440nm)

Loss On Drying:

1%(w/w)

Assay :

98.0 ~ 101.0%(Potential Titration) Or ≥ 99%(HPLC)

Package:

25 ? /Paper barrel(350×480)

Structure: