2-(3-Pyridinyl)-1-Hydroxy Ethane-1, 1-Biphosphonic Acid

 

Synonyms	1-hydroxy-2-(3- pyridyl)-ethan-1,1-bis- phosphonic acid
Molecular Formula	C7H11NO7P2
Molecular Weight	283.0
CAS Number	105462 - 24 - 6

 

S. No.	Test	Specification
1	Description	A white to off-white crystalline powder
2	Related substances by HPLC
	a) Known impurtity	Not more than 0.15%
	b) Unknown impurity	Not more than 0.10%
	c) Total impurity	Not more than 1.0%
3	Assay by HPLC	Not less than 98.0 % and not more than 102.0% of Residronic acid calculated with reference to the anhydrous substances
4	Assay by chemical	Not less than 98.0 % and not more than 102.0% of Residronic acid calculated with reference to the anhydrous substances

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