Process for producing 1,4-dihydroxy-2-naphthoic acid

Process for producing 1,4-dihydroxy-2-naphthoic acid

  • CN 1,820,741 A
  • Filed: 08/06/2002
  • Published: 08/23/2006
  • Est. Priority Date: 08/10/2001
  • Status: Active Application
First Claim
Patent Images

1. a medicament of alleviating abdominal discomfort is characterized in that, described medicament comprises 1, and 4-dihydroxy-2-naphthoic acid or its salt are as active component.

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