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99273-64-0

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99273-64-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99273-64-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,7 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 99273-64:
(7*9)+(6*9)+(5*2)+(4*7)+(3*3)+(2*6)+(1*4)=180
180 % 10 = 0
So 99273-64-0 is a valid CAS Registry Number.

99273-64-0Downstream Products

99273-64-0Relevant articles and documents

Novel hydrogen bonding in crystalline tetra-n-butylammonium salts of catechol halides

Khan, Masood A.,McCulloch, Archibald W.,McInnes, A. Gavin

, p. 2119 - 2122 (2007/10/02)

The crystal structures of (1) and (2) have been determined by X-ray analysis which showed that the two structures are isomorphous, with the orthorhombic space group Pbca, Z=8.The cell dimensions and final R-values are: (1) a=15.323(2), b=16.166(2), c=19.713(2) Angstroem, R=0.048 for 1361 observed reflections; (2) a=15.432(1), b=16.244(2), c=19.824(1) Angstroem, R=0.041 for 1958 observed reflections.The crystal structures consist of discrete tetra-n-butylammonium cations and catechol halide anions.Catechol forms two strong hydrogen bonds to a single halide ion giving a pattern of hydrogen bonding unique for such systems.

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