3709-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3709-70-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,0 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 3709-70:
(6*3)+(5*7)+(4*0)+(3*9)+(2*7)+(1*0)=94
94 % 10 = 4
So 3709-70-4 is a valid CAS Registry Number.
3709-70-4Relevant academic research and scientific papers
Process for purifying hexafluoropropene dimers
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Page/Page column 6-7, (2008/06/13)
Perfluoro-4-methyl-2-pentene containing the undesirable perfluoro-2-methyl-2-pentene may be purified by contacting the mixture with at least a stoichiometric equivalent of an aqueous inorganic base (relative to the perfluoro-2-methyl-2-pentene), in the presence of a polar solvent.