53317-25-2 CYSTINE, BIS(N,N-2-CHLOROETHYL)HYDRAZIDE, DIHYDROBROMIDE, L- Cydrin L-Cystine, bis(2,2-bis(2-chloroethyl)hydrazide), dihydrobromide L-Cystine-bis-(N,N-beta-chloroethyl)-hydrazide-hydrobromide