ɪn ˈɔːɡəst tˈuː θˈaʊzənd ɪlˈɛvən, ˈædəm mˈætsdʒɚ ænd ˈoʊnəz bˈoʊltən pˈʌblɪʃt ɹɪzˈʌlts ʃˈoʊɪŋ ðˌæɾə kˈɑːkɹɪstəl ʌv sˌiːˈɛl twˈɛnti ænd tˌiːˌɛntˈiː hæd twˈaɪs ðə stəbˈɪlᵻɾi ʌv sˌiːˈɛl twˈɛnti—sˈeɪf ɪnˈʌf tə tɹænspˈoːɹt, bˌʌt wɛn hˈiːɾᵻd tə ðə kˈɑːkɹɪstəl mˈeɪ sˈɛpɚɹˌeɪt ˌɪntʊ lˈɪkwɪd tˌiːˌɛntˈiː ænd ɐ kɹˈɪstəl fˈɔːɹm ʌv sˌiːˈɛl twˈɛnti wɪð stɹˈʌktʃɚɹəl dˈiːfɛkts ðæt ɪz sˈʌmwʌt lˈɛs stˈeɪbəl ðɐn sˌiːˈɛl twˈɛnti.
In August 2011, Adam Matzger and Onas Bolton published results showing that a cocrystal of CL-20 and TNT had twice the stability of CL-20—safe enough to transport, but when heated to  the cocrystal may separate into liquid TNT and a crystal form of CL-20 with structural defects that is somewhat less stable than CL-20.