Description

2-Isopropylthioxanthone (CAS No. 5495-84-1) is a high-purity organic compound with the molecular formula C₁₆H₁₄OS, widely used as a photoinitiator in UV-curable systems. This pale yellow crystalline powder, with an IUPAC name of 2-propan-2-ylthioxanthen-9-one, exhibits excellent solubility in organic solvents such as acetone, toluene, and ethyl acetate, making it ideal for coatings, inks, and adhesives. Its strong absorption in the UV spectrum (300-400 nm) ensures efficient free-radical generation upon exposure to UV light, enabling rapid polymerization. Packaged under inert conditions to ensure stability, our 2-Isopropylthioxanthone is rigorously tested for purity (>98%) and low heavy metal content, meeting industry standards for research and manufacturing applications.

Properties

• CAS Number: 5495-84-1
• Complexity: 325
• IUPAC Name: 2-isopropylthioxanthen-9-one
• InChI: InChI=1S/C16H14OS/c1-10(2)11-7-8-15-13(9-11)16(17)12-5-3-4-6-14(12)18-15/h3-10H,1-2H3
• InChI Key: KTALPKYXQZGAEG-UHFFFAOYSA-N
• Exact Mass: 254.07653624
• Molecular Formula: C16H14OS
• Molecular Weight: 254.3
• SMILES: CC(C)C1=CC2=C(C=C1)SC3=CC=CC=C3C2=O
• Topological: 42.4
• Monoisotopic Mass: 254.07653624
• Physical Description: Pellets or Large Crystals; NKRA
• Synonyms: 2-Isopropylthioxanthone, 5495-84-1, 2-Isopropyl-9H-thioxanthen-9-one, 9H-Thioxanthen-9-one, 2-(1-methylethyl)-, 2-(propan-2-yl)-9H-thioxanthen-9-one, Isopropyl thioxanthone, 2-Isopropylthioxanthen-9-one, 54KUS6SE2T, DTXSID1044691, PL-ITX, EINECS 226-827-9, 2-ITX, DTXCID9024691, ISOPROPYL THIOXANTHONE [INCI], 226-827-9, 2-Isopropyl Thioxanthone, 2-Isopropyltioxanthone, 2-propan-2-ylthioxanthen-9-one, 54958-41-7, 2-Isopropylthioxanthone (2-ITX), Quantacure itx, Speedcure ITX, 2-Isopropylthioxantone, UNII-54KUS6SE2T, MFCD00055658, 2-Isoropylthioxanthone, starbld0000115, 2-(1-Methylethyl)-9H-thioxanthen-9-one, SCHEMBL41594, CHEMBL3184930, KTALPKYXQZGAEG-UHFFFAOYSA-, 9H-Thioxanthen-9-one, 2-isopropyl, Tox21_301537, STK370619, 2-Isopropyl-9H-thioxanthen-9-one #, AKOS001600292, FI24699, NCGC00256279-01, NCGC00330247-01, 2-(methylethyl)dibenzo[b,e]thiin-10-one, AC-13339, AS-10938, PD158958, CAS-5495-84-1, 2-Isopropylthioxanthone, analytical standard, DB-021253, EU-0034846, I0678, NS00014397, ST50894453, D91194, AB01324776-02, Q27261222, InChI=1/C16H14OS/c1-10(2)11-7-8-15-13(9-11)16(17)12-5-3-4-6-14(12)18-15/h3-10H,1-2H3

Application

2-Isopropylthioxanthone is primarily employed as a Type II photoinitiator in UV-curable inks, coatings, and adhesives, where it generates free radicals upon UV exposure to initiate polymerization. It is particularly valued in graphic arts and industrial coatings due to its compatibility with acrylate monomers and oligomers. The compound also finds niche use in photolithography and as a sensitizer in photochemical reactions.

Safety and Hazards

GHS Hazard Statements

• H302 (17%): Harmful if swallowed [Warning Acute toxicity, oral]
• H361 (16.1%): Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
• H361f (20.4%): Suspected of damaging fertility [Warning Reproductive toxicity]
• H400 (20.4%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
• H410 (20.4%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P203, P264, P270, P273, P280, P301+P317, P318, P330, P391, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (17%)
• Repr. 2 (16.1%)
• Repr. 2 (20.4%)
• Aquatic Acute 1 (20.4%)
• Aquatic Chronic 1 (20.4%)

If you are interested or have any questions, please contact us at support@atomfair.com

Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.