INTERMEDIATE WHICH IS USED IN THE PRODUCTION OF A DRUG TREATMENT. PRODUCT NAME - (2S,3S,4R)-METHYL 4-(3-(1,1-DIFLUOROBUT-3-ENYL)-7-METHOXYQUINOXALIN-2-YLOXY)-3-ETHYLPYRROLIDINE-2-CARBOXYLATE 4-METHYLBENZENESULFONATE. IN POWDER FORM. WHITE TO OFF-WHITE IN COLOUR.

GENERAL INTERPRETATIVE RULES 1 & 6 NOTES TO HEADING 29 AND 2933 99 80 26 HARMONISED SYSTEM EXPLANATORY NOTES TO HEADING 2933 99 80 26