57997-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57997-99-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,9 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57997-99:
(7*5)+(6*7)+(5*9)+(4*9)+(3*7)+(2*9)+(1*9)=206
206 % 10 = 6
So 57997-99-6 is a valid CAS Registry Number.
57997-99-6Relevant academic research and scientific papers
Phthalimido alkanone, ethylene ketals
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, (2008/06/13)
Phthalimides of the Formula SPC1 Wherein X is NH2, N(CH3)2, Cl or Br and R0 and R1 are hydrogen, methyl or ethyl are disclosed as intermediates in the preparation of benzodiazepines.
