Description

2-Chlorothioxanthen-9-one (CAS No. 86-39-5) is a high-purity organic compound with the molecular formula C₁₃H₇ClOS. This thioxanthone derivative is a versatile chemical intermediate widely used in photopolymerization, UV-curable coatings, and advanced material synthesis. Its unique structure, featuring a chlorinated thioxanthenone core, enhances reactivity in free-radical photoinitiation processes. Available in crystalline form with ≥98% purity, this compound is rigorously tested for consistency, ensuring optimal performance in research and industrial applications. Suitable for use in controlled environments, it is packaged under inert conditions to maintain stability.

Properties

• CAS Number: 86-39-5
• Complexity: 294
• IUPAC Name: 2-chlorothioxanthen-9-one
• InChI: InChI=1S/C13H7ClOS/c14-8-5-6-12-10(7-8)13(15)9-3-1-2-4-11(9)16-12/h1-7H
• InChI Key: ZCDADJXRUCOCJE-UHFFFAOYSA-N
• Exact Mass: 245.9906137
• Molecular Formula: C13H7ClOS
• Molecular Weight: 246.71
• SMILES: C1=CC=C2C(=C1)C(=O)C3=C(S2)C=CC(=C3)Cl
• Topological: 42.4
• Monoisotopic Mass: 245.9906137
• Synonyms: 2-Chlorothioxanthone, 86-39-5, 2-Chloro-9H-thioxanthen-9-one, 2-Chlorothioxanthen-9-one, 9H-Thioxanthen-9-one, 2-chloro-, RGS87T004B, EINECS 201-667-2, AI3-28100, DTXSID90861667, DTXCID30810558, 201-667-2, inchi=1/c13h7clos/c14-8-5-6-12-10(7-8)13(15)9-3-1-2-4-11(9)16-12/h1-7, MFCD00005067, MLS000584923, 2-Chlorothioxanthen-9-one, 98%, SMR000207308, 2-Chlorothiaxanthone, C13H7ClOS, 2-chloro-9-thioxanthenone, 2-chlorothioxanthene-9-one, UNII-RGS87T004B, Chlorprothixene Hydrochloride Imp. E (EP); Chlorprothixene Imp. E (EP); 2-Chloro-9H-thioxanthen-9-one; Chlorprothixene Hydrochloride Impurity E; Zuclopenthixol Decanoate Impurity B; Chlorprothixene Impurity E, 2-chloro-thioxanthone, 2-chloro-9-thioxanthone, 2-chloro-thioxanthen-9-one, SCHEMBL37075, 2-chloranylthioxanthen-9-one, cid_618848, Thioxanthen-9-one, 2-chloro-, CHEMBL1404465, BDBM74837, HMS2577I05, 2-chlorodibenzo[b,e]thian-10-one, 2-chlorodibenzo[b,e]thiin-10-one, 2-Chloro-9H-thioxanthen-9-one #, SBB057736, AKOS000507449, AC-8084, CS-W020969, FC33738, AS-12064, SY033135, DB-014095, EU-0066618, NS00041111, ST45028984, F13426, SR-01000597219, SR-01000597219-1, Q27288110, CHLORPROTHIXENE HYDROCHLORIDE IMPURITY E [EP IMPURITY], Zuclopenthixol impurity B, European Pharmacopoeia (EP) Reference Standard

Application

2-Chlorothioxanthen-9-one is primarily employed as a photoinitiator in UV-curable inks, coatings, and adhesives, where it facilitates rapid polymerization under UV light exposure. Its efficiency in generating free radicals makes it valuable in photochemical research and industrial photopolymerization processes. Additionally, it serves as a key intermediate in the synthesis of specialized dyes and pharmaceutical compounds.

Safety and Hazards

GHS Hazard Statements

• H228 (89.1%): Flammable solid [Danger Flammable solids]

Precautionary Statements

• P210, P240, P241, P280, and P370+P378

Hazard Classes and Categories

• Flam. Sol. 2 (89.1%)

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