The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2015
Filed:
Aug. 06, 2012
Applicants:
Mina Yang, Yantai, CN;
Yanyan Zhao, Yantai, CN;
Fengmei Zhou, Yantai, CN;
Quingguo Meng, Yantai, CN;
Tao Wang, Yantai, CN;
Inventors:
Mina Yang, Yantai, CN;
Yanyan Zhao, Yantai, CN;
Fengmei Zhou, Yantai, CN;
Quingguo Meng, Yantai, CN;
Tao Wang, Yantai, CN;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C07D 333/20 (2006.01); G01N 30/02 (2006.01); C07D 409/12 (2006.01); G01N 30/88 (2006.01);
U.S. Cl.
CPC ...
C07D 333/20 (2013.01); C07D 409/12 (2013.01); G01N 2030/8877 (2013.01); G01N 30/02 (2013.01);
Abstract
The present disclosure relates to 5,6,7,8-tetrahydro-6-[N,N-bis[(2-thienyl)ethyl]]amino-1-naphthol, a method for preparing the same, and use of 5,6,7,8-tetrahydro-6-[N,N-bis[(2-thienyl)ethyl]]amino-1-naphthol as a reference compound for determining an impurity in rotigotine or a preparation thereof.