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Published online by Cambridge University Press: 03 March 2014
X-ray powder diffraction data, unit-cell parameters, and space group for loratadine (C22H23ClN2O2) are reported [a = 28.302(18) Å, b = 4.996(3) Å, c = 29.154(19) Å, β = 109.158(2)°, unit-cell volume V = 3894.25 Å3, Z = 8, and space group C2/c]. All measured lines were indexed and are consistent with the C2/c space group. No detectable impurities were observed.