We are offering 1-pentane sulphonic acid sodium salt (anhydrous) for hplc cas no. 22767-49-3 molecular formula : c5h11nao3s molecular weight : 174.20 assay min 99% (acidimetric; calculated on dried substance) identity(ir-spectrum) conforms ph-value(10%; water) 5.5-7.5 uv-transmission -200nm;0.005 moll;1cm;water min 70 -220nm;0.005 moll;1cm;water min 90 -250nm;0.005 moll;1cm;water min 98 loss on drying (120oc, vacuum) max 2% un no : nr hs code : 2904 10 00 s : 22-2425 f :