100 Pack Disposable 3ml/cc Lab Syringes with 23Ga 1 Inch Needle Luer Lock, Individually Sealed Packed

Yes, they come in EO sterilization packaging. I bought these: https://www.amazon.com/dp/B08KQ2QQJW?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1 and these https://www.amazon.com/dp/B081L5X6KF?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_11 also recommend these because they are 3ml which can fit more. You might need two for that product though https://www.amazon.com/dp/B0BNG6C52W?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4&th=1

I actually just bought a box of 3mL luer lock needles just for this. Yes, you can use a single 1mL syringe 3x to reconstitute a vial. It's better to puncture less where possible, but as long as you sterile technique is good you probably don't have anything to worry about. I don't know if you are in the US, but I literally bought these disposable syringes