2,3-Dichlorothiophene-5-sulphonyl chloride (126714-85-0)

 2,3-Dichlorothiophene-5-sulphonyl chloride , its cas register number is 126714-85-0. It also can be called 2-Thiophenesulfonyl chloride, 4,5-dichloro- ; 4,5-Dichloro-2-thiophenesulfonyl chloride ; and 4,5-Dichlorothiophene-2-sulfonyl chloride . 
 2,3-Dichlorothiophene-5-sulphonyl chloride (CAS NO.126714-85-0) is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Or in the eyes: Immediately flush with running water for at least 20 minutes. While, it's inhaled: Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Then you have the ingesting of the product : Seek medical assistance.