| post date: | dec 01,2021 |
| expiry date: | may 30,2022 |
| detailed description: | cas no. :4249-10-9 |
| cas registry number: | 4249-10-9 |
| synonyms: | 1,2,3,4-tetramethylcyclopentadiene;1,2,3,4-tetramethylcyclopenta-1,3-diene; |
| molecular formula: | c9h14 |
| molecular weight: | 122.2075 |
| molecular structure: | 
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| risk codes: | r10:; |
| safety description: | s16:; |
