2,5-dichlorobenzonitrile

2,5-Dichlorobenzonitrile (CAS 21663-61-6, EINECS 244-518-7, molecular formula C7H3Cl2N) is a pharmaceutical-grade white crystalline solid offered by Lianhe Aigen Pharma Co., Ltd. at a minimum content of 99.0% with the related impurity 2-chloro-6-fluorobenzonitrile capped at 0.5%. It serves as an agrochemical intermediate, is packaged in 200 kg steel drums and produced to commercial scale according to customer orders, though the supplier does not manufacture it directly; no samples are offered, and it is sold into the Asian market.