1124-11-4 2,3,5,6-Tetramethyl pyrazine 2,3,5,6-Tetramethylpyrazine 2,3,5,6-Tetramethylpyrazine (natural) 76494-51-4 87396-75-6 93615-56-6 Bs factor EINECS 214-391-2 FEMA No. 3237 NSC 36080 NSC 46451 Pyrazine, tetramethyl- TETRAMETHYLPYRAZINE Tetramethylpyrazin Tetrapyrazine