The Lansoprazole with CAS registry number of 103577-45-3 is also known as 1H-Benzimidazole, 2-(((3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl)methyl)sulfinyl)-. The IUPAC name is 2-[[3-Methyl-4-(2,2,2-trifluoroethoxy)pyridin-2-yl]methylsulfinyl]-1H-benzimidazole. It belongs to product categories of Active Pharmaceutical Ingredients; Intermediates & Fine Chemicals; Pharmaceuticals; Sulfur & Selenium Compounds; Ion Pump Inhibitors; Monovalent Ion Channels; Voltage-gated Ion Channels; ATPase; Pharmaceutical Intermediates. In addition, the formula is C₁₆H₁₄F₃N₃O₂S and the molecular weight is 369.36. This chemical is a white crystalline powder and should be sealed in cool place without light. What's more, it can be used for the treatment of duodenal ulcer embolism and it is a proton-pump inhibitor (PPI) which prevents the stomach from producing gastric acid.

Physical properties about Lansoprazole are: (1)ACD/LogP: 2.76; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.75; (4)ACD/LogD (pH 7.4): 2.76; (5)ACD/BCF (pH 5.5): 72.3; (6)ACD/BCF (pH 7.4): 72.89; (7)ACD/KOC (pH 5.5): 740.79; (8)ACD/KOC (pH 7.4): 746.86; (9)#H bond acceptors: 5; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 5; (12)Index of Refraction: 1.635; (13)Molar Refractivity: 88.03 cm³; (14)Molar Volume: 245.8 cm³; (15)Surface Tension: 68.9 dyne/cm; (16)Density: 1.5 g/cm³; (17)Flash Point: 289.9 °C; (18)Enthalpy of Vaporization: 83.72 kJ/mol; (19)Boiling Point: 555.8 °C at 760 mmHg; (20)Vapour Pressure: 2.16E-12 mmHg at 25 °C.

Preparation of Lansoprazole: it is prepared by reaction of 2-[3-methyl-4-(2,2,2-trifluoro-ethoxy)-pyridin-2-ylmethylsulfanyl]-1H-benzoimidazole. The reaction needs reagent m-chloroperbenzoic acid and solvent CHCl₃ with other condition of ice-cooling. The yield is about 45%.

When you are using this chemical, please be cautious about it. As a chemical, it is irritating to eyes, respiratory system and skin. During using it, wear suitable protective clothing. If contact with eyes accidently, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
1. Canonical SMILES: CC1=C(C=CN=C1CS(=O)C2=NC3=CC=CC=C3N2)OCC(F)(F)F
2. InChI: InChI=1S/C16H14F3N3O2S/c1-10-13(20-7-6-14(10)24-9-16(17,
18)19)8-25(23)15-21-11-4-2-3-5-12(11)22-15/h2-7H,8-9H2,1H3,(H,21,22)
3. InChIKey: MJIHNNLFOKEZEW-UHFFFAOYSA-N

The toxicity data is as follows: