N-Trimethylsilyl-DL-Phe-OEt, also known as N-Trimethylsilyl-DL-phenylalanine ethyl ester, is a chemical compound derived from DL-phenylalanine, an amino acid. In N-Trimethylsilyl-DL-Phe-OEt, the amino group of DL-phenylalanine is protected by a trimethylsilyl group, and the carboxylic acid group is esterified with ethanol. This modification is often used in organic synthesis and peptide chemistry to protect the amino and carboxylic acid groups during reactions, preventing unwanted side reactions. The compound is a colorless liquid with a molecular weight of 243.37 g/mol and a melting point of -40°C. It is soluble in common organic solvents and is used in the synthesis of various pharmaceuticals, agrochemicals, and other specialty chemicals.
The CAS Registry Mumber 7788-78-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,8 and 8 respectively; the second part has 2 digits, 7 and 8 respectively. Calculate Digit Verification of CAS Registry Number 7788-78: (6*7)+(5*7)+(4*8)+(3*8)+(2*7)+(1*8)=155 155 % 10 = 5 So 7788-78-5 is a valid CAS Registry Number.