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In Business 29 Years - Since 1980		THE CURRENT TIME at LC Labs is:

** Our prices are lower than other vendors', but there is no compromise in quality.  Read how we are able to accomplish this:  Product Quality Discussion.

NOTES:
1.  The purpose of our competitor price comparison tables is to enable our visitors to compare the prices of products of nominally equivalent quality, for vendors whose price information is reliable and openly available from a website or catalog (without a need for the customer to contact the vendor and request a quotation in order to obtain a price for a standard product size).  However, the quality comparisons in these tables are not absolute:  although our product purities are uniformly very high and are established by careful testing of every lot in our laboratories, we cannot and do not vouch for the purities claimed by other vendors in these competitor price comparison tables.  (We do carry out occasional testing of other vendors' products -- see below --  and we have found many instances where vendors' product purities are far below their claimed levels.)

2.  Researching and compiling sizes and prices for the >140 competitive vendors and more than 155 products is an expensive and tedious task for our small company.  Thus, we only perform revisions of these tables once per year.  The date and source of each competitive vendor's prices is indicated at the bottom of this page.  Obviously, we make no guarantee that competitive vendor prices will remain unchanged in the interval between our annual revisions.  We may occasionally update individual competitive vendor information and add new competitive vendors as we locate them.

3.  In some circumstances we permanently remove vendors from our price comparison tables.  Circumstances that lead to permanent removal are: 

A.  If a vendor does not honor its advertised price (ignoring small price increases) for one or more products when an order is attempted.  Example:  a vendor listed a compound at $808 for 10 grams on its website price list, but quoted $4,500 per 10 grams upon our inquiry.  That vendor has been permanently removed from our price comparison tables.

B.  If, on a product-by-product basis, our analyses of a vendor's product show purities more than a few percent below the vendor's advertised purities.  Example:  a vendor advertises a purity for 97% for a compound, but repeated elemental analyses show a minimum of 9% inorganic material present, beyond any salt counterion.  Another example: an HPLC analysis at a relevant UV detector wavelength shows 92% purity for a vendor's product for which 98% purity is claimed.  We realize of course that UV absorbances for impurities can be higher than for the main compound, but our products meet our purity commitment of typically >99% irrespective of absorbance factors for impurities, and we apply that standard to products from other vendors.

C.  Again on a product-by-product basis, if a vendor makes no purity claim for a given product and our analyses of their product show purity more than a few percent below our purity claim for the same product, that vendor's entry is permanently removed from that product table.

D.  Finally, if we find that, as a pattern, several of a competitive vendor's products fail to meet their advertised purity commitments by significant margins, or if several of that vendor's products have no purity commitments but fall significantly below our purity claims for those products, then that vendor is permanently removed from all of our competitor price tables.

4.  IMPORTANT:  The presence of a competitive vendor entry in our price comparison tables does not necessarily mean that we have analyzed any of that vendor's products for purity; indeed, in most cases we have not.

To the best of our knowledge, the prices listed above for our competitors' products were correct as of the dates listed below for the sources of our annual price information update process.

Pricing Sources and Dates: LC Labs - Current, Calbiochem - website - Feb 2010, Sigma - website - Feb 2010, MPBio - website - Feb 2010, Biomol - website - Feb 2010, Tocris - website - Feb 2010, Alomone - website - Feb 2010, Apollo Sci - website - Jul 2010, LKT Labs - website - May 2010, Upstate Biotech - Millipore website - Feb 2010, Toronto Res. Chem. - website - Feb 2010, BioSource - website - Feb 2010, Science Lab - website - Feb 2010, Santa Cruz Biotech - website - Feb 2010, Biaffin - SignaGen Labs website - Feb 2010, Cayman Chemical - website - Feb 2010, Gentaur - website - Feb 2010, US Biological - website - Feb 2010, Focus Synthesis - website - Jul 2010, GenDepot - website - Feb 2010, Brainerd Chemical - website - Feb 2010, International Laboratory - website - Feb 2010, Ascent Scientific - website - Jul 2010, Biotrend - website - Feb 2010, Clonagen - website - Feb 2010, Advanced Technology - website - Feb 2010, Carbone Scientific - website - Feb 2010, Medical Isotopes - website - Feb 2010, Biotang - website - Feb 2010, VDM Biochemicals - website - Jun 2010.

^† Note:  Calbiochem's product 371970, Sigma's product H139, MPBio's product 158939, Biomol's product EI233, Alexis's product 270-071, Alomone's product H-220, Upstate Biotech's product 19-164, Toronto Resarch Chemical's product I882200, BioSource's product PHZ1293, Science Lab's product SLI1972, Biaffin's product PKI-HA107, Cayman Chemical's product 10010559, US Biological's product H1000, Brainerd Chemical's product I3095, Clonagen's product H-2330, and Medical Isotopes's product 11238 are the dihydrochloride salt form of this compound.

^‡ Note:  Focus Synthesis' product FS200081 is the dihydrochloride monohydrate form of this compound.