2-Pyrrolidinone, 5-pentyl-, also known as N-Pentylsuccinimide, is an organic compound with the chemical formula C9H17NO. It is a cyclic amide derivative of succinimide, featuring a five-carbon alkyl chain (pentyl) attached to the nitrogen atom of the pyrrolidinone ring. 2-Pyrrolidinone, 5-pentyl- is a colorless to pale yellow liquid with a mild, characteristic odor. It is used as a chemical intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other specialty chemicals. Due to its reactivity, it is often employed in the preparation of N-alkylated compounds and as a protecting group in peptide synthesis. The compound is sensitive to moisture and should be stored under an inert atmosphere to prevent hydrolysis.
The CAS Registry Mumber 3817-18-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,1 and 7 respectively; the second part has 2 digits, 1 and 8 respectively. Calculate Digit Verification of CAS Registry Number 3817-18: (6*3)+(5*8)+(4*1)+(3*7)+(2*1)+(1*8)=93 93 % 10 = 3 So 3817-18-3 is a valid CAS Registry Number.