Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 41 Antibiotics 29 41 10 Penicillins and derivatives with a penicillanic acid structure; salts 29 41 10 00 Penicillins and derivatives with a penicillanic acid structure; salts Commodity Code Description 29 41 10 00 000 Penicillins and derivatives with a penicillanic acid structure; salts