Methanesulfonic acid,1-[(4-methyl-2-oxo-2H-1-benzopyran-7-yl)amino]-, sodium salt (1:1) (29197-94-2)

     Coumarin 175 , with CAS registry number, has been called as Coumarin,4-methyl-7-[(sulfomethyl)amino]-, monosodium salt (8CI) ,Coumarin,4-methyl-7-[(sulfomethyl)amino]-, sodium salt (7CI) , and NSC 338965 , etc. 

     Being a kind of light yellow crystalline powder, it is slightly soluble in water. And its EPA substance registry system information is as below: methanesulfonic acid, [(4-methyl-2-oxo-2H-1-benzopyran- 7-yl)amino]-, monosodium salt(29197-94-2) . 

     Being a kind of harmful chemicals, it may cause damage to health and is harmful by inhalation, in contact with skin and if swallowed. Besides, it is irritant to eyes, respiratory system and skin. So while contacting, wear suitable gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. This kind of chemical is usually used in the chemical reagent, organic intermediate, fined chemicals and the chemical research reagent in laborary. 

     And you could find the chemical molecular structure by using the following data:
SMILES:
[Na+].[O-]S(=O)(=O)CNc2ccc\1c(OC(=O)/C=C/1C)c2
InChI:
InChI=1/C11H11NO5S.Na/c1-7-4-11(13)17-10-5-8(2-3-9(7)10)12-6-18 (14,15)16;/h2-5,12H,6H2,1H3,(H,14,15,16);/q;+1/p-1