Available hours for academic users of STN Easy and STN on the Web are:
5:00 pm - 5:00 am Monday - Thursday
5:00 pm Friday - 5:00 pm Saturday
7:00 am Sunday - 5:00 am Monday

Accessible files:
STN Easy
CAOLD (pre-1967 Chemical Abstracts)
CAPlus (Chemical Abstracts plus)
CIN (Chemical Industry Notes)
Patents
Registry

STN on the Web
CAOLD (pre-1967 Chemical Abstracts)
CAPlus (Chemical Abstracts plus)
CIN (Chemical Industry Notes)
Patents
Registry
Learning files of Registry (LRegistry) and Chemical Abstracts (LCA)