-- Pyridine and its salts
HS v2012 Code: 293331
Revisions to 293331
Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 293331. The most recent 1 version of this code (293331) is in the HS v2022 system:
This page shows a legacy version of code 293331 ( HS v2012).
Newer versions
Older versions
- HS v2007:
Family tree for -- pyridine and its salts
graph LR A["<a href='/classifications/hs/v2012/29'>29: Organic chemicals</a>"] A --> B["<a href='/classifications/hs/v2012/2933'>2933: Heterocyclic compounds with nitrogen hetero-atom(s) only.</a>"] B --> C["<a href='/classifications/hs/v2012/293331'>293331: -- Pyridine and its salts</a>"] B --> D["<a href='/classifications/hs/v2012/293311'>293311: -- Phenazone (antipyrin) and its derivatives</a>"] B --> E["<a href='/classifications/hs/v2012/293319'>293319: -- Other</a>"] B --> F["<a href='/classifications/hs/v2012/293321'>293321: -- Hydantoin and its derivatives</a>"] B --> G["<a href='/classifications/hs/v2012/293329'>293329: -- Other</a>"] B --> H["<a href='/classifications/hs/v2012/293332'>293332: -- Piperidine and its salts</a>"] B --> I["<a href='/classifications/hs/v2012/293333'>293333: -- Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN), fentanyl (INN), ketobemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A, phencyclidine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN) and trimeperidine (INN); salts thereof</a>"] B --> J["<a href='/classifications/hs/v2012/293339'>293339: -- Other</a>"] B --> K["<a href='/classifications/hs/v2012/293341'>293341: -- Levorphanol (INN) and its salts</a>"] B --> L["<a href='/classifications/hs/v2012/293349'>293349: -- Other</a>"] B --> M["<a href='/classifications/hs/v2012/293352'>293352: -- Malonylurea (barbituric acid) and its salts</a>"] B --> N["<a href='/classifications/hs/v2012/293353'>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</a>"] B --> O["<a href='/classifications/hs/v2012/293354'>293354: -- Other derivatives of malonylurea (barbituric acid); salts thereof</a>"] B --> P["<a href='/classifications/hs/v2012/293355'>293355: -- Loprazolam (INN), mecloqualone (INN), methaqualone (INN) and zipeprol (INN); salts thereof</a>"] B --> Q["<a href='/classifications/hs/v2012/293359'>293359: -- Other</a>"] B --> R["<a href='/classifications/hs/v2012/293361'>293361: -- Melamine</a>"] B --> S["<a href='/classifications/hs/v2012/293369'>293369: -- Other</a>"] B --> T["<a href='/classifications/hs/v2012/293371'>293371: -- 6-Hexanelactam (epsilon-caprolactam)</a>"] B --> U["<a href='/classifications/hs/v2012/293372'>293372: -- Clobazam (INN) and methyprylon (INN)</a>"] B --> V["<a href='/classifications/hs/v2012/293379'>293379: -- Other lactams</a>"] B --> W["<a href='/classifications/hs/v2012/293391'>293391: -- Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereof</a>"] B --> X["<a href='/classifications/hs/v2012/293399'>293399: -- Other</a>"] %% Color coordination by level classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px %% Apply classes class A level2 class B level4 class C level6 class D level6 class E level6 class F level6 class G level6 class H level6 class I level6 class J level6 class K level6 class L level6 class M level6 class N level6 class O level6 class P level6 class Q level6 class R level6 class S level6 class T level6 class U level6 class V level6 class W level6 class X level6 class C highlight %% class A level1 %% class B,C level2 %% class D,E,F,G,H,I level2 %% class J,K,L,M,N,O,P level3 %% class C highlight