Hi,
We just received the message below from the CRC Press.
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Dear Chemnetbase customer,

I'm sorry to announce that due to urgent and essential maintenance the
Chemnetbase portal will be down today and you will not be able to access
Combined Chemical Dictionary (or its constituent dictionaries), nor
Properties of Organic Compounds. Access to 'CRC Handbook of Chemistry and
Physics' and 'Polymers A Property Database' is still available but you may
need to redirect your browser as indicated below.

For Handbook of Chemistry and Physics subscribers:
Access to this product is available by visiting
<http://www.hbcpnetbase.com>www.hbcpnetbase.com

For Polymers Database subscribers:
Access to this product is available by visiting
<http://www.polymersdatabase.com>www.polymersdatabase.com

Please accept our apologies for this inconvenience. We are doing our best
to restore normal service and will notify you when this happens.
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We will keep you updated as we receive more news from the vendor.
Thanks
Sherry

Sherry Willhite
Information Resources Analyst
Digital Library Services
California Digital Library