From: Judith Currano
Date: Thursday, October 04, 2001, 3:29:47 AM
Subject: Commercial availability.
I'm looking for the commercial availability of nine compounds. I have
tried CHEMCATS (through SciFinder), Chemfinder.com, Aldrich/Sigma/Fluka,
and Chem Sources, to no avail. If anyone can suggest an alternative or
knows the commercial availability of any of these compounds, I'd
appreciated a tip!
[2-[2-(2-mercaptoethoxy)ethoxy]ethoxy-acetic acid, 200291-35-6, C8H16O5S
14-hydroxy-3,6,9,12-tetraoxatetradecane-1-sulfonic acid, 313672-65-0,
14-mercapto-3,6,9,12-tetraoxatetradecan-1-ol, 248582-03-8, C10H22O5S
17-mercapto-3,6,9,12,15-pentaoxaheptadecan-1-ol, 194425-46-2, C12H26O6S
2-[2-(2-hydroxyethoxy)ethoxy]-ethanesulfonic acid, 112724-27-3, C6H14O6S
2-[2-[2-(2-mercaptoethoxy)ethoxy]ethoxy]-ethanol, 90952-27-5, C8H18O4S
2-[2-(2-mercaptoethoxy)ethoxy]-ethanol, 5682-36-1, C6H14O3S
Thanks for any help you can give me!
Judith N. Currano firstname.lastname@example.org
Chemistry Librarian (215) 898-2177
University of Pennsylvania
From: Aleksandr Belinskiy
Date: Thursday, October 04, 2001, 9:20:25 PM
Subject: Commercial availability
Alternative source of commercial availability is MDL's ACD, Available
Chemicals Directory, accessibly through ChemWeb. A search (by CAS RN, name,
structure, etc.) and a number of vendors are free, but details about vendors
are fee based (after 30-day free trial).
I checked CAS registry numbers from you list: no data were found (you may
double check). However, for the last [compound
"2-[2-(2-mercaptoethoxy)ethoxy]-ethanol, 5682-36-1, C6H14O3S] an ACD message
indicates that "The CAS number does not have a valid checksum", so, check it.
These compounds may be not commercially available. You may try to analyze the
CAS Registry records for this compounds to figure out are these compounds
commercial available or not. (
- How many records in CA and other sources: if it only 1 record, for example,
and this record is not registered by request of a producer (SO=CAS Registry
Services), this compound is unlikely commercially available.
- Is regulatory information available? If yes, it is good indicator of
- Is the compound covered by patent? - Ask patent owner: at least at
countries where a patent is valid, nobody could sell the compound without a
patent owner consent. ...
Even a search by CAS RN on Internet may help (probably, not in this case).
Falls Church, VA
Phone (703) 533-6568
Sigma-Aldrich Catalog and MSDS
Summary by 李晓霞 on 2001-10-10
Last updated by 李晓霞 on 2001-10-10