Molecule structure of Magnesium naphthenate (CAS NO.68424-71-5):

Systematic Name: Magnesium dinaphthalene-2-carboxylate
Molecular Formula: 2(C₁₁H₇O₂).Mg
Molecular Weight: 366.6492 g/mol
CAS Registry Number: 68424-71-5 
SMILES: [Mg+2].[O-]C(=O)c1cc2ccccc2cc1.[O-]C(=O)c1ccc2ccccc2c1 
InChI: InChI=1/2C11H8O2.Mg/c2*12-11(13)10-6-5-8-3-1-2-4-9(8)7-10;/h2*1-7H,(H,12,13);/q;;+2/p-2 
InChIKey: OFUAIAKLWWIPTC-NUQVWONBAZ
Std. InChI: InChI=1S/2C11H8O2.Mg/c2*12-11(13)10-6-5-8-3-1-2-4-9(8)7-10;/h2*1-7H,(H,12,13);/q;;+2/p-2
Std. InChIKey: OFUAIAKLWWIPTC-UHFFFAOYSA-L 
EINECS: 270-317-9
Product Categories: Classes of Metal Compounds; Mn (Manganese) Compounds; Transition Metal Compounds

 Magnesium naphthenate (CAS NO.68424-71-5) is used as detergent-dispersant for the internal combustion engine oil and fuel oil.

Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.

 Magnesium naphthenate (CAS NO.68424-71-5) is also named as Naphthenic acid, magnesium salt ; Naphthenic acids, magnesium salts .