Lot and Batch Numbers can be found on a product\'s label following the words \'Lot\' or \'Batch\'.
Sigma Products
More important for COO: enter a \"0\" if only two numbers are in front of the letter e.g. 62K1064 – you will only find the COO if you enter 062K1064.
Aldrich Products
If you find a lot number such as TO09019TO - enter the lot number 09019TO without the first two letters.
If you find a lot number with a filling-code such as 05427ES–021 - enter the lot number 05427ES without the filling-code -021.
If you find a lot number with a filling-code such as STBB0728K9 - enter the lot number STBB0728 without the filling-code K9.
COA Not Found
In some cases, a COA may not be available on-line. If your search was unable to find the COA you are looking for, you will be presented with a COA Request form. In many cases a COA can be faxed to you upon submission of this form.
Chemical Synthesis Chemistry Libraries Heterocyclic Building Blocks Organic Building Blocks Organometallics Salts Solvents Stable Isotopes NEW PRODUCTS » LIF...Sigma-Aldrich A8626, Adenine ≥99%, 6-Aminopurine, Vitamin B4, 73-24-5, C5H5N5, C5H5N5Adenine (6-Aminopurine ); ≥ 0.99; Suitable for UV/Vis spectroscopy; Adenine is a purine nucleobase; Adenine is a purine nucleobase with a wide range of chemical and biochemical roles in vivo and in vitro;Adenine >= 99 %
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