Dianhydride with isothiocyanic acid refers to a chemical reaction involving the combination of an anhydride, which is a compound with two acid groups, and isothiocyanic acid, a compound containing a sulfur atom bonded to a nitrogen atom and a carbonyl group. This reaction typically results in the formation of a new compound with a complex structure, where the anhydride's acid groups react with the isothiocyanic acid, leading to the formation of a thioamide or a related sulfur-containing product. The specific products and reaction conditions can vary depending on the starting materials and the reaction environment, making this a versatile area of study in organic chemistry with potential applications in the synthesis of pharmaceuticals, agrochemicals, and other specialty chemicals.
The CAS Registry Mumber 4723-61-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,2 and 3 respectively; the second part has 2 digits, 6 and 1 respectively. Calculate Digit Verification of CAS Registry Number 4723-61: (6*4)+(5*7)+(4*2)+(3*3)+(2*6)+(1*1)=89 89 % 10 = 9 So 4723-61-9 is a valid CAS Registry Number.