rm1131ab316223 is the carrier-free version of ab316222. Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. The carrierRM 1131, CNR, Harbin Bureau, Jiamusi Area, IS, 198604, 198608, 198604 : at Changchun Works, 3. DP, 199001, 199001, 1. RM 1132, Sifang 1960