رموز نظام التوحيد القياسي ورموز التعرفة الجمركية - المواد الكيميائية والصناعات المرتبطة 28 - 38

293220

Heterocyclic compounds, with oxygen hetero-atom(s) only, containing an unfused furan ring (whether or not hydrogenated) in the structure, lactones

293291

Heterocyclic compounds, with oxygen hetero-atom(s) only, (other than lactones or compounds containing an unfused furan ring (whether or not hydrogenated) in the structure), isosafrole

293292

Heterocyclic compounds, with oxygen hetero-atom(s) only, (other than lactones or compounds containing an unfused furan ring (whether or not hydrogenated) in the structure), 1-(1,3-benzodiaxol-5-yl) propan-2-one

293293

Heterocyclic compounds, with oxygen hetero-atom(s) only, (other than lactones or compounds containing an unfused furan ring (whether or not hydrogenated) in the structure), piperonal

293294

Heterocyclic compounds, with oxygen hetero-atom(s) only, (other than lactones or compounds containing an unfused furan ring (whether or not hydrogenated) in the structure), safrole

293295

Heterocyclic compounds, with oxygen hetero-atom(s) only, (other than lactones or compounds containing an unfused furan ring (whether or not hydrogenated) in the structure), tetrahydrocannabinols (all isomers)

293299

Heterocyclic compounds, with oxygen hetero-atom(s) only, no lactones or unfused furan rings (hydrogenated or not) in the structure, other than isosafrole, 1-(1,3-benzodiaxol-5-yl) propan-2-one, piperonal, safrole, tetrahydrocannabinols (all isomers)

293311

Heterocyclic compounds, with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, phenazone (antipyrin) and its derivatives

293319

Heterocyclic compounds, with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, other than henazone (antipyrin) and its derivatives

293321

Heterocyclic compounds, with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, hydantoin and its derivatives

293329

Heterocyclic compounds, with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, other than hydantoin and its derivatives

293331

Heterocyclic compounds, containing an unfused pyridine ring (whether or not hydrogenated) in the structure, pyridine and its salts

293332

Heterocyclic compounds, containing an unfused pyridine ring (whether or not hydrogenated) in the structure, piperidine and its salts

293333

Heterocyclic compounds, containing an unfused pyridine ring (whether or not hydrogenated) in the structure, other than pyridine and its salts, other than piperidine and its salts

293339

Heterocyclic compounds, containing an unfused pyridine ring (whether or not hydrogenated) in the structure, n.e.c. in 2933.3

293341

Heterocyclic compounds, containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, levorphanol (INN) and its salts

293349

Heterocyclic compounds, containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, other than levorphanol (INN) and its salts

293352

Heterocyclic compounds, containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, malonylurea (barbituric acid) and its salts

293353

Allobarbital (INN), amobarbital (INN), barbital (INN), butalbital (INN), butobarbital, cyclobarbital (INN), methylphenobarbital (INN), pentobarbital (INN), phenobarbital (INN), secbutabarbital (INN), secobarbital (INN) and vinylbital (INN), salts thereof

293354

Heterocyclic compounds, containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, other derivatives of malonylurea (barbituric acid) and salts thereof, n.e.c. in 2933.53