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646-59-3

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646-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 646-59-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,4 and 6 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 646-59:
(5*6)+(4*4)+(3*6)+(2*5)+(1*9)=83
83 % 10 = 3
So 646-59-3 is a valid CAS Registry Number.

646-59-3Downstream Products

646-59-3Relevant articles and documents

Isotopic Selectivity in Infrared Multiphoton Dissociation of CF3CH(D)BrCl

Masuda, Toshikatsu,Sakka, Tetsuo,Ogata, Yukio,Iwasaki, Matae

, p. 771 - 774 (1993)

The infrared multiphoton dissociation of CF3CDBrCl in the presence of equimolar CF3CHBrCl was investigated with attention to the isotopic selectivity of the reaction.Large selectivity was found at pressures lower than 3 Torr .Several products were obtained, and the molar fraction of deuterium-containing species (deuterium fraction) of each product was measured.The products were classified into two groups with respect to the pressure and fluence dependences of the deuterium fraction.A reaction scheme, consistent with the experimental results, is proposed.

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