Japanese name: イオンペア試薬（IP-RP／LC-MS用 HFIP・TEA・アルキルアミン）
Ion-pair reagents such as HFIP and alkylamines make up the volatile mobile phase for ion-pair reversed-phase LC-MS of oligonucleotides, used in the analysis of nucleic acid drugs. Low metal content reduces sodium and potassium adducts and improves the mass spectra. Buyers compare amine hydrophobicity, which sets retention, the HFIP and amine pairing, metal contamination, and whether MS-grade products or kits are offered. Below, each tracked product is paired with its maker and its Japanese distributor or subsidiary.
“Where to buy in Japan” shows only sales relationships we have confirmed on the company’s or the distributor’s own website. “Not yet confirmed” means we have not checked yet, not that the product is unavailable in Japan. Product names link to the maker’s own page.