(2RS,3SR)-2-amino-3-(3-amino-phenyl)-3-hydroxy-propionic acid, also known as L-phenylalanine, is an essential amino acid that plays a crucial role in various biological processes. It is a chiral molecule, meaning it has two distinct enantiomers, with the (2R,3S) configuration being the naturally occurring form. L-phenylalanine is a building block of proteins and is synthesized in the body through the shikimate pathway. It is also a precursor to other important molecules, such as the neurotransmitters dopamine, norepinephrine, and epinephrine, as well as the skin pigment melanin. Due to its importance in human metabolism, L-phenylalanine is often used as a dietary supplement and in the pharmaceutical industry for the treatment of certain medical conditions.
The CAS Registry Mumber 5872-88-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,8,7 and 2 respectively; the second part has 2 digits, 8 and 8 respectively. Calculate Digit Verification of CAS Registry Number 5872-88: (6*5)+(5*8)+(4*7)+(3*2)+(2*8)+(1*8)=128 128 % 10 = 8 So 5872-88-8 is a valid CAS Registry Number.