2 2 3 2 carboxyethyl 6 methoxy 3H benzothiazol 2 ylidene methyl 1 butenyl 1 methylnaphtho12

2 2 3 2 carboxyethyl 6 methoxy 3H benzothiazol 2 ylidene methyl 1 butenyl 1 methylnaphtho12

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