Benzenesulfonyl chloride, 4-(3,5-dimethyl-4-isoxazolyl)-, also known as 4-(3,5-dimethyl-4-isoxazolyl)benzenesulfonyl chloride or DMI-BsCl, is an organic compound with the chemical formula C11H10ClNO3S. It is a white to off-white crystalline solid that is soluble in organic solvents such as dichloromethane and acetonitrile. Benzenesulfonyl chloride, 4-(3,5-dimethyl-4-isoxazolyl)- is primarily used as a reagent in organic synthesis, particularly in the preparation of various pharmaceuticals, agrochemicals, and other specialty chemicals. It is known for its ability to act as a sulfonylating agent, facilitating the introduction of sulfonyl groups into target molecules. Due to its reactivity, it is essential to handle Benzenesulfonyl chloride, 4-(3,5-dimethyl-4-isoxazolyl)- with care, as it can be harmful if inhaled, ingested, or absorbed through the skin.
The CAS Registry Mumber 2154-81-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,5 and 4 respectively; the second part has 2 digits, 8 and 1 respectively. Calculate Digit Verification of CAS Registry Number 2154-81: (6*2)+(5*1)+(4*5)+(3*4)+(2*8)+(1*1)=66 66 % 10 = 6 So 2154-81-6 is a valid CAS Registry Number.