- Synonyms: Sodium 1-heptylsulfonate monohydrater- C7H15NaO3S·H2Or- M = 220,26 g/molr- CAS [207300-90-1]r- EINECS-No.: 245-210-5r- Solub. in water: (20 ºC): freely solubler- Tariff number: 2904 10 00 90r- Applications: analytical chemistry, laboratory reagent, chromatography.rrSPECIFICATIONSrassay (acidimetric): min. 99 %ridentity (IR-spectrum): passes testrinsoluble matter: passes testrrwavelength:: absorbance:r210 nm: 0,1 AUr220 nm: 0,06 AUr230 nm: 0,04 AUr260 nm: 0,02 AUr