α-Amino-3-carboxy-4-hydroxybenzeneacetic acid, also known as 3-(4-hydroxyphenyl)-DL-alanine or simply 3,4-dihydroxyphenylalanine (DOPA), is a naturally occurring amino acid that plays a crucial role in the biosynthesis of neurotransmitters such as dopamine, norepinephrine, and epinephrine. It is derived from the hydroxylation of the amino acid tyrosine by the enzyme tyrosine hydroxylase, which is the rate-limiting step in the production of these neurotransmitters. DOPA is also used in medical applications, such as the treatment of Parkinson's disease, where it is converted into dopamine in the brain to help alleviate symptoms. Additionally, it has been studied for its potential role in pigmentation and melanin production, making it a subject of interest in the field of dermatology.
The CAS Registry Mumber 13015-31-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,0,1 and 5 respectively; the second part has 2 digits, 3 and 1 respectively. Calculate Digit Verification of CAS Registry Number 13015-31: (7*1)+(6*3)+(5*0)+(4*1)+(3*5)+(2*3)+(1*1)=51 51 % 10 = 1 So 13015-31-1 is a valid CAS Registry Number.