2,3,5,6-Tetramethylpyrazine 87396-75-6 1124-11-4 93615-56-6 MLS000069594 SMR000059042 BS factor NSC36080 Pyrazine, tetramethyl- Tetramethylpyrazin Tetramethylpyrazine Ligustizine Ligustrazine ZINC00004042 W323705_ALDRICH W323713_ALDRICH 183938_ALDRICH 2,3,5,6-Tetramethyl pyrazine 2,3,5,6-Tetramethylpyrazine (natural) EINECS 214-391-2 FEMA No. 3237 NSC 36080 NSC 46451 Tetrapyrazine AC-907/25014219 Chuanxiongzine NSC46451