DIMETHYL DICARBONATE
Prepared at the 37th JECFA (1990), published in FNP 52 (1990). Metals and arsenic specifications revised at the 63rd JECFA (2004). Considered to
be acceptable in accordance with GMP (max 250mg/l) at the 37th JECFA (1990)
SYNONYMS DMDC, dimethyl pyrocarbonate; INS No. 242
DEFINITION
Chemical names Dimethyl dicarbonate
C.A.S. number 004-525-33-1
Chemical formula C4H6O5
Formula weight 139.09
Assay Not less than 99.8%
DESCRIPTION Colourless liquid.
Caution: Corrosive to eyes and skin and toxic by inhalation and ingestion; must be kept in a tightly sealed container to exclude moisture.
FUNCTIONAL USES Preservative
