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):

• PCS_LOADINGS

Data Source:
Data Element:
Properties:

• Type:CHARACTER
• Length:9

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