93552-97-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93552-97-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,5,5 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 93552-97:
(7*9)+(6*3)+(5*5)+(4*5)+(3*2)+(2*9)+(1*7)=157
157 % 10 = 7
So 93552-97-7 is a valid CAS Registry Number.
93552-97-7Relevant academic research and scientific papers
A SYNTHESIS OF ANTIBIOTIC (+/-)-PS-5
Wasserman, Harry H.,Han, William T.
, p. 3747 - 3750 (2007/10/02)
A novel method for the formation of antibiotic (+/-)-PS-5 is described, involving intramolecular cyclization of a β-lactam with tricarbonyl residue.This procedure represents another application of the enamine-singlet oxygen reaction in synthesis.
