- Synonyms: Sodium 1-pentylsulfonater- C5H11NaO3Sr- M = 174,20 g/molr- CAS [22767-49-3]r- EINECS-No.: 245-208-4r- Solub. in water: (20 ºC): freely solubler- Tariff number: 2904 10 00 90r- Applications: analytical chemistry, chromatography.rrSPECIFICATIONSrassay (acidimetric): min. 99 %rpH (10 %, H2O): 5,5 - 7,5 rloss on drying : max. 1 %rabsorbance of an aqueous solution 0,1M in a 1cm cell at 254 nm: max. 0,045 AUrr200 nm: max. 0,15 %r220 nm: max . 0,05 %r