The Potassium 4-methoxysalicylate, with the cas registry number 152312-71-5, has the systematic name of potassium 2-hydroxy-4-methoxybenzoate. This is a kind of almost white crystal or powder.

Some characteristics of this chemical are as followings: (1)#H bond acceptors: 4; (2)#H bond donors: 2; (3)#Freely Rotating Bonds: 3; (4)Polar Surface Area: 69.59.
 
As to its usage, it is usually applied in the cosmetic and personal nursing care. The suggested additive amounts  percentage in cosmetic are as followings: When in skin whitening/anti-wrinkle/ cream or moisturizer, the additive amout percentage is 2.5-3%; When in skin whitening mildy wash/essence/shower gel/sun screen, the amount percentage is also 2.5-3.

Addtionally, the following datas could be converted inte the molecular structure:
(1)SMILES:[K+].O=C([O-])c1ccc(cc1O)OC
(2)InChI:InChI=1/C8H8O4.K/c1-12-5-2-3-6(8(10)11)7(9)4-5;/h2-4,9H,1H3,(H,10,11);/q;+1/p-1
(3)InChIKey:YRJKYHIIYRGTCC-REWHXWOFAY