Section 06 Products of the chemical or allied 30 Pharmaceutical products 30 06 Pharmaceutical goods specified in note 3 to this chapter 30 06 30 Opacifying preparations for x-ray examinations; diagnostic reagents... 30 06 30 00 Opacifying preparations for x-ray examinations; diagnostic reagents... Commodity Code Description 30 06 30 00 00 Opacifying preparations for x-ray examinations; diagnostic reagents...