161553-25-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161553-25-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,5,5 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 161553-25:
(8*1)+(7*6)+(6*1)+(5*5)+(4*5)+(3*3)+(2*2)+(1*5)=119
119 % 10 = 9
So 161553-25-9 is a valid CAS Registry Number.
161553-25-9Relevant academic research and scientific papers
Svete,Stanovnik,Tisler
, p. 1259 - 1266 (1994)
Optically active and racemic isomers of aspartic acid (1) were transformed into the corresponding N-trifluoroacetyl-5-bromo-4-oxonorvaline methyl esters (6, R = Me) and N-trifluoroacetyl-3-formylalanine methyl esters 13, which were used as starting compou