It is “2-imino-4-thiazolidinones” and not thiohydantoins as the reaction product of 1,3-disubstituted thioureas and chloroacetylchloride
Yella, Ramesh; Ghosh, Harisadhan; Patel, Bhisma K.; Green Chemistry 10 (2008) 1307–; doi:10.1039/b807775d

data_7202238
_publ_section_title
;
 It is &#x201C;2-imino-4-thiazolidinones&#x201D; and not thiohydantoins
 as the reaction product of 1,3-disubstituted thioureas and
 chloroacetylchloride
;
_journal_issue                   12
_journal_name_full               'Green Chemistry'
_journal_page_first              1307
_journal_paper_doi               10.1039/b807775d
_journal_volume                  10
_journal_year                    2008
_chemical_formula_moiety         'C15 H10 Cl2 N2 O S'
_chemical_formula_sum            'C15 H10 Cl2 N2 O S'
_chemical_formula_weight         337.21
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.900(4)
_cell_length_b                   10.035(4)
_cell_length_c                   24.251(8)
_cell_measurement_reflns_used    3584
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      0.00
_cell_measurement_theta_min      0.00
_cell_volume                     3139.3(19)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.98
_diffrn_measured_fraction_theta_max 0.935
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0463
_diffrn_reflns_av_sigmaI/netI    0.0524
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            16750
_diffrn_reflns_theta_full        27.91
_diffrn_reflns_theta_max         27.91
_diffrn_reflns_theta_min         1.68
_exptl_absorpt_coefficient_mu    0.545
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.427
_exptl_crystal_density_meas      1.425
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1376
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.43
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.391
_refine_diff_density_min         -0.480
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.970
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         3513
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.970
_refine_ls_R_factor_all          0.1194
_refine_ls_R_factor_gt           0.0576
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1050P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1633
_refine_ls_wR_factor_ref         0.1953
_reflns_number_gt                1684
_reflns_number_total             3513
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b807775d.txt
_cod_data_source_block           ry1-168a
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        3139.2(18)
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7202238