557090-70-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 557090-70-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,7,0,9 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 557090-70:
(8*5)+(7*5)+(6*7)+(5*0)+(4*9)+(3*0)+(2*7)+(1*0)=167
167 % 10 = 7
So 557090-70-7 is a valid CAS Registry Number.
557090-70-7Relevant academic research and scientific papers
Hydroxyurea analogues of fosmidomycin
Kurz, Thomas,Geffken, Detlef,Wackendorff, Claudia
, p. 106 - 110 (2007/10/03)
Benzyloxyureas (4) have been prepared by reactions of diethyl 3-benzyloxyamino-propyl-phosphonate (3) with isocyanates, potassium cyanate or 1,1'-carbonyldiimidazole / methylamine. Conversion of phosphonic esters 4 into phosphonic acids 6 by means of brom
