`  == Image similarity to ``Methyldihydromorphine`` ==  I noticed the images were nigh indistinguishable between the image here on the Heterocodeine page and of that on the Methyldihydromorphine article page: that is until I noticed the line on the third (furthest) ring onto the right. However I still want to note this fact if indeed in error, most derived opiates from one another, no matter how similar, still have a much substantial 2D image difference from one another, in any regard regardless of how close. This at least is notable for that unprecedentedly extreme 2D rendering similarity.   `