188681-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188681-73-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,6,8 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 188681-73:
(8*1)+(7*8)+(6*8)+(5*6)+(4*8)+(3*1)+(2*7)+(1*3)=194
194 % 10 = 4
So 188681-73-4 is a valid CAS Registry Number.
188681-73-4Relevant articles and documents
Syntheses of 6-fluoro-meta-tyrosine and of its metabolites
Konkel, Jamie T,Fan, Junfa,Jayachandran,Kirk, Kenneth L
, p. 27 - 32 (2007/10/03)
6-Fluoro-meta-tyrosine (1) was prepared from 2-fluoro-5-hydroxybenzaldehyde (6) based on an Erlenmeyer-Pl?chl azlactone strategy. Products of expected metabolism of the amino acid, including 6-fluoro-meta-tyramine (2) and its O-sulfate conjugate (3), (2-f