Bir üst Kategori : 2933 - Sadece azotlu heterosiklik bileşikler :
| Firma Adı * | Şehir / Bölge | Ülke |
|---|---|---|
| C*********************************************** | Mexico | Meksika |
| I** | Italy | İtalya |
| F****************** | Uzbekistan | Özbekistan |
| I**** | Italy | İtalya |
| P*************************** | Morocco | Fas |
| P************* | Switzerland | İsviçre |
| R***************** | Germany | Almanya |
| A****************************** | Sri Lanka | Sri Lanka |
| О********** | Russia | Rusya |
| K********************************* | Uganda | Uganda |
| E********* | Montevideo | Uruguay |
| С************************* | Uzbekistan | Özbekistan |
| C*************************************** | Vietnam | Vietnam |
| D************ | Germany | Almanya |
| N* | Germany | Almanya |
| Т********************* | Kazakhstan | Kazakistan |
| Т************** | Kazakhstan | Kazakistan |
| N****************************** | Nigeria | Nijerya |
| P********************************** | Slovenia | Slovenya |
| L******************* | Uganda | Uganda |
| L*************************** | United States | Amerika Birleşik Devletleri |
| I****** | United States | Amerika Birleşik Devletleri |
| R********************** | South Africa | Güney Afrika Cumhuriyeti |
