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Published online by Cambridge University Press: 17 August 2012
X-ray powder diffraction data, unit-cell parameters and space group for trimethylene carbonate, C4H6O3, are reported [a = 6.145(1) Å, b = 11.328(3) Å, c = 6.900(2) Å, β = 99.067(4)°, unit-cell volume V = 474.33 Å3, Z = 4 and space group P21/n]. All measured lines were indexed and are consistent with the P21/n space group. No detectable impurity was observed.