The 2-Methylthio-4-pyrimidinol, with the CAS registry number 5751-20-2 and EINECS registry number 227-274-6, has the systematic name of 2-(methylsulfanyl)pyrimidin-4(3H)-one. It belongs to the product categoies of Pyrimidine and Intermediate of mizolastine. And the molecular formula of this chemical is C₅H₆N₂OS.

The physical properties of 2-Methylthio-4-pyrimidinol are as followings: (1)ACD/LogP: 0.26; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.26; (4)ACD/LogD (pH 7.4): 0.12; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 32.91; (8)ACD/KOC (pH 7.4): 23.75; (9)#H bond acceptors: 3; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 57.97 Å²; (13)Index of Refraction: 1.638; (14)Molar Refractivity: 37.62 cm³; (15)Molar Volume: 104.5 cm³; (16)Polarizability: 14.91×10^-24cm³; (17)Surface Tension: 51.1 dyne/cm; (18)Density: 1.35 g/cm³; (19)Flash Point: 136 °C; (20)Enthalpy of Vaporization: 56.3 kJ/mol; (21)Boiling Point: 301.2 °C at 760 mmHg; (22)Vapour Pressure: 0.000597 mmHg at 25°C.

Preparation: This chemical can be prepared by 2-thioxo-2,3-dihydro-1H-pyrimidin-4-one and iodomethane. The reaction will need reagent aq. NaOH, and the yield is about 88%. 

Uses of 2-Methylthio-4-pyrimidinol: It can react with 4-chloro-aniline to produce 2-(4-chloro-anilino)-3H-pyrimidin-4-one. This reaction will need solvent bis-(2-methoxy-ethyl) ether and heating. The yield is about 79%.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C1/C=C\N=C(\SC)N1
(2)InChI: InChI=1/C5H6N2OS/c1-9-5-6-3-2-4(8)7-5/h2-3H,1H3,(H,6,7,8)
(3)InChIKey: UYHSQVMHSFXUOA-UHFFFAOYAO