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2,2-dichloro-1,1,1-trifluoroethane-d1, also known as CCl2FCHCl2, is a halogenated hydrocarbon with the molecular formula C2DCl2F3. It is a deuterated variant of the common refrigerant and propellant 2,2-dichloro-1,1,1-trifluoroethane (HCFC-123), where one hydrogen atom is replaced by a deuterium atom. 2,2-dichloro-1,1,1-trifluoroethane-d1 is primarily used as a tracer in atmospheric studies and as a reference material in chemical analysis due to its stable isotopic composition. It is not used for commercial refrigeration or as a propellant, unlike its non-deuterated counterpart. The deuterium substitution provides a distinct mass difference, which can be exploited in various analytical techniques to study the behavior and fate of the compound in the environment.

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 academic research and scientific papers

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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