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The crystal structure of D-valine has been determined by Mo-Kα (λ = 0.71073 A) X-ray diffraction method for the first time. It crystallizes in monoclinic, space group P21 (Z = 4) with a = 9.6728(5), b = 5.2722(3), c = 12.0425(8) A, β = 90.750(2)° at