Structural formula:

Molecular formula:C₉H₁₀O₄
Properties: white needle crystal. melting point 181-183, not soluble in water, soluble in organic solvents including alcohol and either.
Specifications:
Appearance: white crystalline powder
Content: 99%
Melting point: 181-183
Usage: used as material of pharmaceutical intermediates.
Package: plastic-lined paperboard drum, net weight 25kg per drum.
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