CAS Registry Number

CAS 56341-37-8 — 6-Chloro-2-indolinone

6-Chloro-2-indolinone is a heterocyclic organic compound primarily used as a synthetic intermediate in pharmaceuticals, agrochemicals, and dye manufacturing due to its reactive indolinone core. It appears as a pale solid with applications in the synthesis of APIs, pigments, and specialty chemicals. CAS 56341-37-8, molecular formula C8H6ClNO (not Cl2Pd—correction), molecular weight 177.326 g/mol, stable at ambient conditions, non-hazardous (no signal word). Molekula supplies 6-Chloro-2-indolinone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.