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Urgent purchase *Required information
CAS No.  
For example, the CAS number of water is 7732-18-5: the checksum 5 is calculated as (8×1 + 1×2 + 2×3 + 3×4 + 7×5 + 7×6) = 105; 105 mod 10 = 5.
Buying Lead Title  
Purity  
The mininal purity of the product. Usualy an indication like ">97%". Optional.
Quantity  
Price Range:       ~  
Molecular Structure  
    Mol. Weight: Formula:
Expire After  
Detailed Description:  
-Please tell your customers more about your want to buy.
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Contact Email     Enter email or Member ID.