Column Name: CAS_NUMBER

Description: The Chemical Abstracts Service (CAS) Registry Number (CASRN) is a uniq ue number assigned by CAS to each distinct chemical substance recorded in the CAS Chemical Registry System.


Envirofacts Table Name(s):

• EF_L_DESTRUCTIONFGHG
• EF_L_PRODUCTION_TRANS
• EF_L_VENTINGFGHG
• LT_CHEMICALS
• MV_EF_I_ANN_FGHG_PVMEMSLCD
• MV_EF_I_ANN_FGHG_SEMICONDUCTOR
• MV_EF_I_FAB_FLU_HEAT_TRANFLUID
• PCS_LOADINGS
• REF_CONTAMINANT

Properties:

• Type:CHARACTER
• Length:9

Definition Source:Functional Design for the Envirofacts Master Chemical Integrator, September 1994.