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2000
It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.
An interesting pyrazoline derivative, 3,3-dimethyl-3H-pyrazo[4,5- 2'(S)-methyl] cyclohexane-1,2-dioxide (3), has been obtained by the transformation of monoterpene ketone, pulegone (1) using hydroxylamine hydrochloride and sodium nitrite through a stable intermediate (2).