1,2-Dichloroethane (Ethylene Dichloride)

Ethylene dichloride (1,2-dichloroethane) is a saturated chlorinated hydrocarbon classified under HTS 2903150000, while vinyl chloride (chloroethylene) is an unsaturated compound classified under a different HTS heading (2903210000). The distinction is based on chemical structure — EDC has two chlorine atoms on adjacent saturated carbons, whereas vinyl chloride has one chlorine on an ethylene double bond. A Certificate of Analysis confirming the compound's identity is essential to support the correct classification.

EDC supply is closely tied to chlor-alkali production capacity, which is energy-intensive and subject to operational curtailments during periods of high electricity costs. Because Germany and France are the leading US suppliers, European energy market conditions can directly affect availability and pricing. Additionally, EDC is typically shipped in large bulk liquid parcels, so port infrastructure and tanker availability are logistical constraints that importers should factor into procurement planning.