173037-37-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173037-37-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,0,3 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 173037-37:
(8*1)+(7*7)+(6*3)+(5*0)+(4*3)+(3*7)+(2*3)+(1*7)=121
121 % 10 = 1
So 173037-37-1 is a valid CAS Registry Number.
173037-37-1Relevant articles and documents
Reaction of N-Benzoyl Amino Acids with Oxalyl Chloride: a Facile Route to 4-Substituted 2-Phenyloxazole-5-carboxylates
Cynkowski, Tadeusz,Cynkowska, Grazyna,Ashton, Paul,Crooks, Peter A.
, p. 2335 - 2336 (1995)
N-benzoyl amino acids 1a-g react with excess oxalyl chloride at room temperature followed by addition of alcohols to afford 4-substituted 2-phenyloxazole-5-carboxylates 3a-g.