Risedronate Sodium
C7H10NNaO7P2
305.09
C7H10NNaO7P2·H2O 323.12
C7H10NNaO7P2·2.5 H2O 350.13
Phosphonic acid, [1-hydroxy-2-(3-pyridinyl)ethylidene]bis-, monosodium salt;
Sodium trihydrogen [1-hydroxy-2-(3-pyridyl) ethylidene]diphosphonate;
Hemi-pentahydrate
[329003-65-8] Monohydrate [353228-19-0]
C7H10NNaO7P2·H2O 323.12
C7H10NNaO7P2·2.5 H2O 350.13
Phosphonic acid, [1-hydroxy-2-(3-pyridinyl)ethylidene]bis-, monosodium salt;
Sodium trihydrogen [1-hydroxy-2-(3-pyridyl) ethylidene]diphosphonate;
Hemi-pentahydrate
[329003-65-8] Monohydrate [353228-19-0]
DEFINITION
Risedronate Sodium contains one or two-and-one-half molecules of hydration. The monohydrate form contains NLT 98.0% and NMT 102.0% of risedronate sodium (C7H10NNaO7P2), calculated on the dried basis. The hemi-pentahydrate form contains NLT 98.0% and NMT 102.0% of risedronate sodium (C7H10NNaO7P2), calculated on the anhydrous basis.
USP REFERENCE STANDARDS FOR PURCHASE
USP Risedronate Related Compound A RSUSP Risedronate Related Compound B RS
USP Risedronate Sodium RS