4-Methoxy(thiobenzoyl) chloride, also known as 4-methoxybenzoyl chloride or 4-methoxybenzenecarbothioyl chloride, is an organic compound with the chemical formula C8H7ClOS. It is a colorless to pale yellow liquid that is soluble in organic solvents. 4-methoxy(thiobenzoyl) chloride is an important intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other organic compounds. It is used as a reagent in the preparation of esters, amides, and other derivatives of 4-methoxybenzoic acid. Due to its reactivity, it is essential to handle 4-methoxy(thiobenzoyl) chloride with care, as it can cause irritation to the eyes, skin, and respiratory system.
The CAS Registry Mumber 3335-17-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,3 and 5 respectively; the second part has 2 digits, 1 and 7 respectively. Calculate Digit Verification of CAS Registry Number 3335-17: (6*3)+(5*3)+(4*3)+(3*5)+(2*1)+(1*7)=69 69 % 10 = 9 So 3335-17-9 is a valid CAS Registry Number.